Gates Quad-Power II, Super HC MN, Hi-Power, PowerBand, Micro-V, Polyflex JB V-belt Design Manual
Below you will find brief information for V-belt Quad-Power II, V-belt Super HC MN, V-belt Super HC, V-belt Hi-Power, V-belt PowerBand, V-belt Micro-V, V-belt Polyflex JB.
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YOUR DISTRIBUTOR:
Upgraded Quad-Power II V
-belt
Drive the Technology
E2/20070 ED 2004
Design Manual
Industrial V-belts
Quad-Power II • Super HC
®
MN • Hi-Power
®
• PowerBand
®
• Micro-V
®
• Polyflex
®
JB™
GATES INDUSTRIAL V-BELT DRIVE DESIGN MANUAL
CONTENTS
PAGE SECTION
PRODUCT FEATURES AND PROGRAMME
Quad-Power II
Super HC ® MN / Super HC ®
Hi-Power ®
PowerBand ®
Micro-V ®
Polyflex ® JB™
Tools
SIZE LISTINGS
Quad-Power II
Super HC ® MN / Super HC ®
Hi-Power ®
PowerBand ®
Micro-V ®
Polyflex ® JB™
DRIVE DESIGN
1. Select the desired service life range
2. Determine the design power
3. Select the proper V-belt section
4. Determine the speed ratio
21
23
23
28
5. Choose the pulley datum diameter
6. Calculate the belt speed
7. Select centre distance and V-belt length
8. Determine the number of belts or ribs required
28
28
29
31
9. Provide the minimum installation and takeup allowances
31
TENSIONING
33
35
1. V-belt tensioning method
2. PowerBand ® tensioning method
PULLEYS
1. Groove specifications V-belt pulleys
2. Groove specifications Micro-V ® belt pulleys
3. Groove specifications Polyflex ® JB™ belt pulleys
IDLERS
1. Idlers on V-belt drives
2. Placement of idlers on the drive
3. Further information
POWER RATING TABLES
38
41
42
43
43
44
Quad-Power II
Super HC ® MN / Super HC ®
Hi-Power ®
Micro-V ®
Polyflex ® JB™
DRIVE DESIGN EXAMPLE
Drive design example: standard speed electric motor and standard pulley diameters
APPENDIX
Useful data: symbols, formulae and conversion table
Support
46
54
66
76
82
88
90
91
6
7
8
4
5
2
3
9
11
13
17
18
19
1
2
3
4
5
5
6
7
7
INTRODUCTION
This manual includes updated tables, specifications and procedures necessary to design drives using the following Gates industrial V-belts:
- Quad-Power II raw edge, moulded notch, narrow section V-belt;
- Super HC
®
MN raw edge, moulded notch, narrow section V-belt;
- Super HC
®
wrapped, narrow section V-belt;
- Hi-Power
®
wrapped V-belt of conventional cross-section;
- PowerBand
®
multiple V-belt;
- Micro-V
®
multi-ribbed belt;
- Polyflex
®
JB™ polyurethane multiple V-belt.
Special recommendations for the use of idlers are also included.
Throughout the years, the Gates Corporation has played a key role in the creation and development of high-quality belts.
It all started back in 1917, when John Gates invented the V-belt, now essential to most industrial power transmission applications. Through an ongoing programme of development of new belt products and improvement of existing belts in anticipation of industry's requirements, the Gates Power Transmission Division offers a complete range of premium products. Typical examples are V-belts such as Quad-Power II,
Super HC ® MN, Hi-Power ® , PowerBand ® , Micro-V ® and Polyflex ® JB ™ and synchronous belts such as PowerGrip
®
GT3, Poly Chain
®
GT2 and
Long Length.
Gates continues investing in quality, research and development to assist you with whatever industrial drive design challenge you may be confronted with.
All Gates antistatic V-belts are in accordance with the antistatic requirements as stated in EN 13463-5 - “Non-electrical equipment intended for use in potentially explosive atmospheres - Part-5: protection by constructural safety” - and can as such be used in the conditions described in the Directive 94/9/EC - ATEX.
1 1
® Registered trademark of The Gates Corporation.
Important!
According to the ISO 4184 standard all V-belts are identified by datum length instead of pitch length. Please consult page 21.
1
QUAD-POWER II
Raw edge, moulded notch, narrow section V-belt
Quad-Power␣ II is Gates’ top-of-the-range narrow section V-belt for heavy-duty industrial drives. It has been developed to replace traditional V-belts on applications where space and weight savings are critical: Quad-Power␣ II is the V-belt with the highest power capacity even on small pulley diameters.
Improved resistance to outside bends allows the use of back idlers.
The new optimised notch profile makes the belts run smoothly in the pulley grooves.
Identification
Durable blue marking indicating type and dimensions.
IMPORTANT INFORMATION!
Extensive testing has proven that, compared to the former
Quad-Power generation, Gates
Quad-Power II V-belt offers up to
15% higher power rating values, ensuring the same service life.
Construction
* Raw edge construction, ground.
* Narrow cross-section.
* New, optimised notch profile reduces and evenly distributes thermal and bending stresses. Notch depth is in proportion to the cross-section to ensure perfect stability.
* Precision-ground sidewalls give a uniform wedging action.
* Fibre-loaded elastomeric compound withstands heat, ozone and sunlight.
* Flex-bonded polyester tensile cords are vulcanised as one solid unit, increasing the belt’s resistance to tensile and flexing forces.
* Double Flex-Weave
®
textile backing protects the belt against wear — especially when back idlers are used.
* Cross-cords improve belt stability.
* The belt will not catch fire from heat buildup, even with severe slippage.
* Static conductive (ISO 1813).
Advantages
* The most powerful belt in Gates’ industrial V-belt range.
* Excellent performance / cost ratio.
* Increased transmission efficiency as compared to other V-belt types.
* Cost and space savings.
* Maximum belt life reducing maintenance time.
* Match system: all sizes meet Gates UNISET tolerances.
2
Sections and nominal dimensions
XPZ
XPA
XPB
XPC
Width Height mm mm
10
13
16
22
8
10
13
18
Hi-Power
®
12 x B 46 pulley width: 234 mm
25 000 hr belt life
Super HC ®
8 x SPB 1250 pulley width: 158 mm
25 000 hr belt life
Quad-Power II
5 x XPB 1250 pulley width: 100 mm
25 000 hr belt life
SUPER HC
®
MN
Raw edge, moulded notch, narrow section V-belt
SUPER HC
®
Wrapped, narrow section V-belt
In addition to the Super HC
®
wrapped, narrow section V-belt,
Gates markets the Super HC
®
Moulded Notch V-belt construction.
Super HC ® MN V-belts put more power where high speeds, high speed ratios or small pulley diameters are required, thus offering significant advantages over classical section V-belts.
Developed through specialised research, Super HC
®
MN is highly recommended for use on all industrial heavy-duty, narrow section V-belt drives. The Super HC ® MN increased transmission efficiency allows more compact and highly economical drive design.
Super HC ® MN belts are available up to 4750 mm ISO datum lengths.
Identification
Durable yellow marking indicating type and dimensions.
Construction
* Raw edge construction, ground.
* Narrow cross-section.
* Moulded notches reduce and evenly distribute thermal and bending stresses. The moulded notch pattern also reduces noise.
* Precision-ground straight sidewalls give a uniform wedging action to ensure the belt fits correctly in the pulley grooves.
* Allows use of back idlers.
* Flex-bonded tensile cords are vulcanised as one solid unit making the belt highly resistant to tensile and flexing forces, fatigue and shock loads.
* Elastomeric compound protects the belt against heat, ozone and sunlight.
* The belt will not catch fire from heat buildup, even with severe slippage.
* Static conductive (ISO 1813).
1
Advantages
* Excellent performance / cost ratio.
* More power in the same space or same power in 1/3 to 1/2 less space when compared to classical section V-belts.
* Cost and space savings by reducing size of pulleys, bearings, guards and mounts.
* Improved belt life reducing expensive maintenance time.
* Match system: all sizes meet Gates UNISET tolerances.
Sections and nominal dimensions
SPZ
SPA
SPB
SPC
Width mm
10
13
16
22
Height mm
8
10
13
18
3
1
HI-POWER
®
Wrapped V-belt of conventional cross-section
BEELD MOET NOG
WORDEN GESCAND
The wrapped classical section Hi-Power ® V-belt has a long reputation for reliability on agricultural and industrial applications.
The arched top of the Hi-Power
®
belt provides superior strength to prevent “dishing” and distortion of the tensile section. The cords are properly aligned, each of them carrying its full share of the load.
The Flex-Weave ® cover increases the angle facing the direction of pull. As a result, the Flex-Weave ® fabric develops even less stress for a given amount of bending.
Identification
Durable red marking indicating type and dimensions.
Construction
* Classical cross-section
* Arched top, concave sidewalls and rounded corners provide uniform tensile loading and uniform pulley sidewall contact for excellent belt service life and reduced pulley wear.
* The Flex-Weave
®
oil and heat resistant cover protects the belt core from the toughest environments.
* The vulcanised Flex-bonded tensile cords provide superior resistance to tensile and flexing forces, fatigue and shock loads.
* High-quality rubber compound protects the belt against heat, ozone and sunlight.
* The belt will not catch fire from heat build-up, even with severe slippage.
* Static conductive (ISO 1813).
BEELD MOET NOG
WORDEN GESCAND
Advantages
* Excellent performance / cost ratio.
* Reliability and efficiency.
* Long belt life reducing replacement and maintenance costs.
* Match system: all sizes meet Gates UNISET tolerances.
4
Z
A
B
C
D
Sections and nominal dimensions
Width mm
10
13
17
22
32
Height mm
6
8
11
14
19
POWERBAND
®
Multiple V-belt
Gates PowerBand ® offers a solution for drives where single belts vibrate, turn over or jump off the pulleys.
PowerBand ® is especially developed for drives subjected to pulsating loads. It consists of several V-belts joined together by a permanent, high strength tie band, thus being tougher than all the belts taken separately. PowerBand ® is available in SPB, SPC, 8V/25J, 9J, 15J,
3VX and 5VX sections. B, C and D sections are available on request.
Identification
Durable marking indicating type and dimensions.
Construction
* Strong band controls belt-to-belt distance and prevents sideways bending.
* Flex-bonded cords.
* Concave sides, arched top and Flex-Weave ® cover for
PowerBands of wrapped construction (SPB, SPC, 9J, 15J and
8V/25J).
* Hi-Power
®
PowerBand
®
B, C and D sections are available on request.
* Moulded notches for PowerBands of raw edge construction
(3VX and 5VX).
* Elastomeric compound.
* Static conductive (ISO 1813).
1
Advantages
* High stability and smooth running on the toughest drives.
* Important design economies possible.
* Savings in drive space and weight thanks to high transmission efficiency.
Sections and nominal dimensions
B
C
D
SPB
SPC
Width mm
17
22
32
16
22
Height mm
10
12
19
13
18
9J
15J
8V/25J
3VX
5VX
Width mm
10
16
26
10
16
Height mm
8
13
23
8
13
5
1
MICRO-V
®
Multi-ribbed belt
Through its truncated rib design, Gates Micro-V
®
multi-ribbed belt ensures an outstanding performance at higher speeds on smaller diameter pulleys.
This smooth-running belt provides a power capacity increase up to
80% higher than RMA standards.
The Micro-V
®
size range comprises more than 125 standard effective lengths covering a multitude of applications.
Identification
Durable yellow marking indicating type and dimension.
Construction
* Truncated ribs ensure flexibility, reduce heat buildup and improve rib crack resistance.
* High modulus, low stretch polyester tensile member provides superior resistance to fatigue and shock loads.
* All elastomeric rubber compound provides oil and heat resistance.
* Specially formulated fibre reinforced undercord stock improves belt stability.
Advantages
* Extremely smooth and cool running.
* Very high power capacity per rib.
* Long life due to extra load-carrying capacity.
* Improved performance on back idlers.
* Smaller drive package.
* Tolerant of pulley groove debris.
Sections and nominal dimensions
Micro-V ® belts are available in PJ, PL and PM sections. The figure below shows a cross-sectional view illustrating the nominal belt dimensions — rib width and belt height. All these belts will operate in standard pulleys provided the pulleys are manufactured to the DIN 7867 or ISO 9982 standard for the specific cross-section.
Nominal top width: b b
Where: N
S g r
= N r
x S
= number of ribs g
= pulley groove spacing
PJ
PL
PM
Pitch
S g mm
2.34
4.70
9.40
Height
h b mm
3.6
6.4
12.5
6
POLYFLEX
®
JB™
Polyurethane multiple V-belt
Polyflex ® JB™ is synonymous with high power density in small spaces. Developed by Gates and produced to patented manufacturing processes, Polyflex ® JB™ belts provide more load- carrying capacity at higher speeds to small precision multiple V-belt drives.
This results in significant cost savings and improved design freedom.
Recommended for use on bench type milling machines, lathe drives, woodworking and metalworking machine spindle drives, computer peripheral equipment, small blowers, etc.
Identification
Durable marking indicating type.
Construction
* Joined belt construction improves stability.
* Ribs relieve bending stress on small pulleys and provide lateral rigidity.
* 60
°
angle provides more undercord support to the tensile section and distributes the load more evenly.
* Small cross-section meets special application needs such as high shaft speeds, small drive package size and smooth running requirements.
* High modulus polyurethane compound with a high friction coefficient. The precise casting method eliminates overlaps and layers.
* Excellent adhesion of tensile cords and polyurethane compound leads to high fatigue resistance and long belt life.
* Extra toughness. The polyurethane compound resists fatigue, wear and ozone.
1
Advantages
* Long belt life on small pulleys and compact drives.
* Greater shaft speeds, in excess of 10000 rpm.
* High performance and smooth running for precision applications.
* Cost savings and design freedom.
* Avoids vibrations when subjected to shock loads.
Single belt sections and nominal dimensions
3M-JB
5M-JB
7M-JB
11M-JB
Width mm
7
11
3
5
Height mm
2.3
3.3
5.3
7.1
7
TOOLS
2
Gates 505C sonic tension meter
Correct belt installation is essential for optimum performance of V- and synchronous belt drives. Gates’ 505C sonic tension meter allows a simple and accurate tension measurement by analysing sound waves (natural frequencies) from the belt through the sensor. The tension meter processes the input signals and gives an accurate digital display of tension. The tester is compact, computerised and stores data for repetitive use measuring belt tension accurately time after time.
Gates’ 505 sonic tension meter is supplied with a handy instruction manual
(E/20106). See also page 34 for more information on how to check belt tension.
Features
* Stores weight, width and span constants for up to ten different systems.
* New auto gain adjustment function cancels out background noise automatically.
* Shuts off automatically after ten minutes of inactivity, making it an energy-saving device.
* Measurement range: 10 Hz to 1000 Hz.
* Flexible sensor (cord sensor and inductive sensor available on request).
* H 160 mm x D 26 mm x W 59 mm.
Optional accessories
Cord sensor
The cord sensor is recommended for measuring tensions at a distance from the tension meter.
Inductive sensor
The inductive sensor is recommended for measurement of steel corded belts particularly in noisy or windy environments.
Sonic tension meter calibrator – model U-305-OS1
This special calibrator (oscillator) is available for the frequency test of the 505C model. This oscillator generates five types of oscillations (sine wave): 25, 90, 500, 2000 and 4000 Hz. It features a frequency accuracy of 0.1% or even lower.
Gates laser alignment device LASER AT-1
The LASER AT-1 identifies parallel as well as angular misalignment between the pulleys and is suitable for pulley diameters of 60 mm and larger. Mounted in a few seconds, the laser line projected on the targets allows you to quickly ascertain and correct misalignment. It is so light it can be mounted on nonmagnetic pulleys with the double sided adhesive tape and used on both horizontal and vertical shaft installations.
For more information please see leaflet E2/20121.
8
WARNING
Gates’ Sonic tension meter 505C and laser alignment device LASER AT-1 are not certified for use in explosion risk areas.
QUAD-POWER II SIZE LISTING
XPZ
Belt reference Datum length mm ISO
1090
1112
1120
1137
1140
1150
1162
1037
1060
1062
1077
1080
1087
980
987
1000
1010
1012
1030
887
900
912
925
837
850
862
875
937
950
962
975
772
787
800
812
737
750
760
762
687
710
722
730
630
637
662
670
ISO
XPZ 1037
XPZ 1060
XPZ 1062
XPZ 1077
XPZ 1080
XPZ 1087
XPZ 1090
XPZ 1112
XPZ 1120
XPZ 1137
XPZ 1140
XPZ 1150
XPZ 1162
XPZ 837
XPZ 850
XPZ 862
XPZ 875
XPZ 887
XPZ 900
XPZ 912
XPZ 925
XPZ 937
XPZ 950
XPZ 962
XPZ 975
XPZ 630
XPZ 637
XPZ 662
XPZ 670
XPZ 687
XPZ 710
XPZ 722
XPZ 730
XPZ 737
XPZ 750
XPZ 760
XPZ 762
XPZ 772
XPZ 787
XPZ 800
XPZ 812
XPZ 980
XPZ 987
XPZ 1000
XPZ 1010
XPZ 1012
XPZ 1030
ISO
XPZ 1850
XPZ 1900
XPZ 1950
XPZ 2000
XPZ 2030
XPZ 2120
XPZ 2160
XPZ 2240
XPZ 2280
XPZ 2360
XPZ 2410
XPZ 2500
XPZ 2540
XPZ 1500
XPZ 1512
XPZ 1520
XPZ 1537
XPZ 1550
XPZ 1587
XPZ 1600
XPZ 1650
XPZ 1687
XPZ 1700
XPZ 1750
XPZ 1800
XPZ 1285
XPZ 1287
XPZ 1312
XPZ 1320
XPZ 1337
XPZ 1340
XPZ 1362
XPZ 1400
XPZ 1412
XPZ 1420
XPZ 1450
XPZ 1487
XPZ 1180
XPZ 1187
XPZ 1200
XPZ 1202
XPZ 1212
XPZ 1237
XPZ 1250
XPZ 1262
XPZ 1270
XPZ 1280
Belt reference Datum length mm ISO
2160
2240
2280
2360
2410
2500
2540
1850
1900
1950
2000
2030
2120
1600
1650
1687
1700
1750
1800
1500
1512
1520
1537
1550
1587
1362
1400
1412
1420
1450
1487
1285
1287
1312
1320
1337
1340
1180
1187
1200
1202
1212
1237
1250
1262
1270
1280
Belt reference
ISO
XPZ 2650
XPZ 2690
XPZ 2800
XPZ 2840
XPZ 3000
XPZ 3150
XPZ 3350
XPZ 3550
Dimensions in bold are available from stock.
Datum length mm ISO
2650
2690
2800
2840
3000
3150
3350
3550
XPA
Belt reference
ISO
XPA 1285
XPA 1307
XPA 1320
XPA 1332
XPA 1357
XPA 1360
XPA 1400
XPA 1450
XPA 1482
XPA 1500
XPA 1507
XPA 1532
XPA 1550
XPA 1000
XPA 1007
XPA 1030
XPA 1060
XPA 1082
XPA 1090
XPA 1107
XPA 1120
XPA 1140
XPA 1150
XPA 1157
XPA 1180
XPA 747
XPA 757
XPA 782
XPA 800
XPA 832
XPA 850
XPA 857
XPA 882
XPA 900
XPA 907
XPA 925
XPA 932
XPA 950
XPA 957
XPA 975
XPA 982
XPA 1207
XPA 1215
XPA 1232
XPA 1250
XPA 1257
XPA 1282
Datum length mm ISO
1400
1450
1482
1500
1507
1532
1550
1285
1307
1320
1332
1357
1360
1207
1215
1232
1250
1257
1282
1000
1007
1030
1060
1082
1090
1107
1120
1140
1150
1157
1180
950
957
975
982
900
907
925
932
832
850
857
882
747
757
782
800
9
2
QUAD-POWER II SIZE LISTING
2
ISO
XPA 2060
XPA 2120
XPA 2240
XPA 2360
XPA 2430
XPA 2500
XPA 2650
XPA 2800
XPA 3000
XPA 3150
XPA 3350
XPA 3550
XPA 3750
XPA 4000
XPA 1582
XPA 1600
XPA 1650
XPA 1700
XPA 1750
XPA 1800
XPA 1850
XPA 1900
XPA 1950
XPA 2000
Belt reference Datum length mm ISO
2650
2800
3000
3150
3350
3550
3750
4000
2060
2120
2240
2360
2430
2500
1582
1600
1650
1700
1750
1800
1850
1900
1950
2000
XPB
Belt reference
ISO
XPB 2500
XPB 2530
XPB 2650
XPB 2680
XPB 2800
XPB 2840
XPB 2990
XPB 3000
XPB 3150
XPB 3350
XPB 3550
XPB 3750
XPB 4000
XPB 4250
XPB 4500
XPB 4750
XPB 1800
XPB 1850
XPB 1900
XPB 1950
XPB 2000
XPB 2020
XPB 2120
XPB 2150
XPB 2240
XPB 2280
XPB 2360
XPB 2410
XPB 1250
XPB 1260
XPB 1320
XPB 1340
XPB 1400
XPB 1410
XPB 1450
XPB 1500
XPB 1510
XPB 1550
XPB 1590
XPB 1600
XPB 1650
XPB 1690
XPB 1700
XPB 1750
Datum length mm ISO
2990
3000
3150
3350
3550
3750
2500
2530
2650
2680
2800
2840
4000
4250
4500
4750
2120
2150
2240
2280
2360
2410
1800
1850
1900
1950
2000
2020
1590
1600
1650
1690
1700
1750
1250
1260
1320
1340
1400
1410
1450
1500
1510
1550
XPC
Belt reference
ISO
XPC 2000
XPC 2120
XPC 2240
XPC 2360
XPC 2500
XPC 2650
XPC 2800
XPC 3000
XPC 3150
XPC 3350
XPC 3550
XPC 3750
XPC 4000
XPC 4250
XPC 4500
XPC 4750
Datum length mm ISO
3150
3350
3550
3750
4000
4250
4500
4750
2000
2120
2240
2360
2500
2650
2800
3000
Dimensions in bold are available from stock.
10
SUPER HC
®
MN / SUPER HC
®
BELT LISTING
SPZ
MN
ISO belt ref.
Datum
Wrapped length mm ISO
SPZ 560 SPZ 560
SPZ 562 SPZ 562
SPZ 612 SPZ 612
SPZ 615
SPZ 630 SPZ 630
SPZ 637 SPZ 637
SPZ 662 SPZ 662
SPZ 670 SPZ 670
SPZ 687 SPZ 687
SPZ 710 SPZ 710
SPZ 722
SPZ 730 SPZ 730
SPZ 737 SPZ 737
SPZ 750 SPZ 750
SPZ 760
SPZ 762 SPZ 762
SPZ 772
SPZ 775 SPZ 775
SPZ 787 SPZ 787
SPZ 800 SPZ 800
SPZ 812 SPZ 812
SPZ 825 SPZ 825
SPZ 837 SPZ 837
SPZ 850 SPZ 850
SPZ 862 SPZ 862
SPZ 875 SPZ 875
SPZ 887 SPZ 887
SPZ 900 SPZ 900
SPZ 912 SPZ 912
SPZ 925 SPZ 925
SPZ 937 SPZ 937
SPZ 950 SPZ 950
SPZ 962 SPZ 962
SPZ 975 SPZ 975
SPZ 987 SPZ 987 987
SPZ 1000 SPZ 1000 1000
SPZ 1010 1010
SPZ 1012 SPZ 1012 1012
SPZ 1025 1025
SPZ 1030 SPZ 1030 1030
SPZ 1037 SPZ 1037 1037
SPZ 1047 1047
SPZ 1060 SPZ 1060 1060
SPZ 1062 SPZ 1062 1062
SPZ 1077 1077
SPZ 1080 1080
SPZ 1087 SPZ 1087 1087
912
925
937
950
962
975
812
825
837
850
772
775
787
800
862
875
887
900
737
750
760
762
687
710
722
730
630
637
662
670
560
562
612
615
MN
ISO belt ref.
Datum
Wrapped length mm ISO
SPZ 1090 SPZ 1090 1090
SPZ 1112 SPZ 1112 1112
SPZ 1120 SPZ 1120 1120
SPZ 1137 SPZ 1137 1137
SPZ 1140 1140
SPZ 1150 SPZ 1150 1150
SPZ 1162 SPZ 1162 1162
SPZ 1180 SPZ 1180 1180
SPZ 1187 SPZ 1187 1187
SPZ 1200 1200
SPZ 1202 1202
SPZ 1212 SPZ 1212 1212
SPZ 1215 1215
SPZ 1237 SPZ 1237 1237
SPZ 1250 SPZ 1250 1250
SPZ 1262 SPZ 1262 1262
SPZ 1270 1270
SPZ 1285 1285
SPZ 1287 SPZ 1287 1287
SPZ 1312 SPZ 1312 1312
SPZ 1320 SPZ 1320 1320
SPZ 1337 SPZ 1337 1337
SPZ 1340
SPZ 1347
1340
1347
SPZ 1360 1360
SPZ 1362 SPZ 1362 1362
SPZ 1387 SPZ 1387 1387
SPZ 1400 SPZ 1400 1400
SPZ 1412
SPZ 1420
1412
1420
SPZ 1437 SPZ 1437 1437
SPZ 1450 SPZ 1450 1450
SPZ 1462 SPZ 1462 1462
SPZ 1487 SPZ 1487 1487
SPZ 1500 SPZ 1500 1500
SPZ 1512 1512
SPZ 1520 1520
SPZ 1537 1537
SPZ 1550 SPZ 1550 1550
SPZ 1562 1562
SPZ 1587 SPZ 1587 1587
SPZ 1600 SPZ 1600 1600
SPZ 1612 SPZ 1612 1612
SPZ 1637 SPZ 1637 1637
SPZ 1650 SPZ 1650 1650
SPZ 1662 1662
SPZ 1687 1687
Dimensions in bold are available from stock.
MN
ISO belt ref.
Datum
Wrapped length mm ISO
SPZ 1700 SPZ 1700 1700
SPZ 1737 1737
SPZ 1750 SPZ 1750 1750
SPZ 1762 1762
SPZ 1782 1782
SPZ 1787 SPZ 1787 1787
SPZ 1800 SPZ 1800 1800
SPZ 1812 1812
SPZ 1837 SPZ 1837 1837
SPZ 1850 SPZ 1850 1850
SPZ 1862
SPZ 1887
1862
1887
SPZ 1900 SPZ 1900 1900
SPZ 1937 1937
SPZ 1950 SPZ 1950 1950
SPZ 1987 1987
SPZ 2000 SPZ 2000 2000
SPZ 2037 2037
SPZ 2060 SPZ 2060 2060
SPZ 2120 SPZ 2120 2120
SPZ 2137 2137
SPZ 2160 2160
SPZ 2180 SPZ 2180 2180
SPZ 2187 2187
SPZ 2240 SPZ 2240 2240
SPZ 2262
SPZ 2280
SPZ 2287
2262
2280
2287
SPZ 2360 SPZ 2360 2360
SPZ 2410 2410
SPZ 2430 SPZ 2430 2430
SPZ 2500 SPZ 2500 2500
SPZ 2540 2540
SPZ 2650 SPZ 2650 2650
SPZ 2690 2690
SPZ 2800 SPZ 2800 2800
SPZ 2840 2840
SPZ 3000 SPZ 3000 3000
SPZ 3150 SPZ 3150 3150
SPZ 3350 SPZ 3350 3350
SPZ 3550 SPZ 3550 3550
SPA
MN
ISO belt ref.
Datum
Wrapped length mm ISO
SPA 732 SPA 732
SPA 757
SPA 782
SPA 800 SPA 800
SPA 807
SPA 832 SPA 832
SPA 850 SPA 850
SPA 857 SPA 857
SPA 882 SPA 882
SPA 900 SPA 900
SPA 907 SPA 907
SPA 925 SPA 925
SPA 932 SPA 932
SPA 950 SPA 950
SPA 957 SPA 957
SPA 975 SPA 975
SPA 982 SPA 982 982
SPA 1000 SPA 1000 1000
SPA 1007 SPA 1007 1007
SPA 1030 SPA 1030 1030
SPA 1032 SPA 1032 1032
SPA 1057 1057
SPA 1060 SPA 1060 1060
SPA 1082 SPA 1082 1082
SPA 1090 SPA 1090 1090
SPA 1107 SPA 1107 1107
SPA 1120 SPA 1120 1120
SPA 1132 SPA 1132 1132
932
950
957
975
882
900
907
925
807
832
850
857
732
757
782
800
SPA 1140 1140
SPA 1150 SPA 1150 1150
SPA 1157 SPA 1157 1157
SPA 1180 SPA 1180 1180
SPA 1207 SPA 1207 1207
SPA 1215 SPA 1215 1215
SPA 1232 SPA 1232 1232
SPA 1250 SPA 1250 1250
SPA 1257 SPA 1257 1257
SPA 1272 1272
SPA 1282 SPA 1282 1282
SPA 1285 SPA 1285 1285
SPA 1307 SPA 1307 1307
SPA 1320 SPA 1320 1320
SPA 1332 SPA 1332 1332
SPA 1357 SPA 1357 1357
SPA 1360 SPA 1360 1360
SPA 1382 SPA 1382 1382
SPA 1400 SPA 1400 1400
11
2
SUPER HC
®
MN / SUPER HC
®
BELT LISTING
2
SPA (cont’d)
MN
ISO belt ref.
Datum
Wrapped length mm ISO
SPA 1407 SPA 1407 1407
SPA 1432 SPA 1432 1432
SPA 1450 SPA 1450 1450
SPA 1457 SPA 1457 1457
SPA 1482 SPA 1482 1482
SPA 1500 SPA 1500 1500
SPA 1507 SPA 1507 1507
SPA 1532 SPA 1532 1532
SPA 1550 SPA 1550 1550
SPA 1557 SPA 1557 1557
SPA 1582 1582
SPA 1600 SPA 1600 1600
SPA 1607
SPA 1632
1607
1632
SPA 1650 SPA 1650 1650
SPA 1657 1657
SPA 1682 1682
SPA 1700 SPA 1700 1700
SPA 1707 1707
SPA 1732 SPA 1732 1732
SPA 1750 SPA 1750 1750
SPA 1757 1757
SPA 1782 SPA 1782 1782
SPA 1800 SPA 1800 1800
SPA 1807 1807
SPA 1832 SPA 1832 1832
SPA 1857 SPA 1857 1857
SPA 1882 1882
SPA 1900 SPA 1900 1900
SPA 1907 1907
SPA 1932 SPA 1932 1932
SPA 1950 SPA 1950 1950
SPA 1957 1957
SPA 1982 1982
SPA 2000 SPA 2000 2000
SPA 2032 SPA 2032 2032
SPA 2057 2057
SPA 2060 SPA 2060 2060
SPA 2082 SPA 2082 2082
SPA 2120 SPA 2120 2120
SPA 2132 SPA 2132 2132
SPA 2182 2182
SPA 2207 SPA 2207 2207
SPA 2232 2232
SPA 2240 SPA 2240 2240
SPA 2282 2282
SPA 2300 SPA 2300 2300
12
MN
ISO belt ref.
Datum
Wrapped length mm ISO
SPA 2307
SPA 2332
2307
2332
SPA 2360 SPA 2360 2360
SPA 2382 2382
SPA 2430 SPA 2430 2430
SPA 2482 2482
SPA 2500 SPA 2500 2500
SPA 2532 2532
SPA 2582
SPA 2607
2582
2607
SPA 2632 2632
SPA 2650 SPA 2650 2650
SPA 2682
SPA 2732
2682
2732
SPA 2782 2782
SPA 2800 SPA 2800 2800
SPA 2832
SPA 2847
2832
2847
SPA 2882 2882
SPA 2900 SPA 2900 2900
SPA 2932
SPA 2982
2932
2982
SPA 3000 SPA 3000 3000
SPA 3150 SPA 3150 3150
SPA 3350 SPA 3350 3350
SPA 3550 SPA 3550 3550
SPA 3750 SPA 3750 3750
SPA 4000 SPA 4000 4000
SPA 4250 4250
SPA 4500 4500
SPB
MN
ISO belt ref.
Datum
Wrapped length mm ISO
SPB 1250 SPB 1250 1250
SPB 1260
SPB 1320
SPB 1340
1260
1320
1340
SPB 1400
SPB 1410
1400
1410
SPB 1500 SPB 1500 1500
SPB 1510
SPB 1590
1510
1590
SPB 1600 SPB 1600 1600
SPB 1690 1690
SPB 1700 SPB 1700 1700
SPB 1800 SPB 1800 1800
SPB 1900 SPB 1900 1900
SPB 2000 SPB 2000 2000
SPB 2020 2020
SPB 2120 SPB 2120 2120
SPB 2150 2150
SPB 2240 SPB 2240 2240
SPB 2280 2280
SPB 2360 SPB 2360 2360
SPB 2410 2410
SPB 2500 SPB 2500 2500
SPB 2530 2530
SPB 2650 SPB 2650 2650
SPB 2680 2680
SPB 2800 SPB 2800 2800
SPB 2840 2840
SPB 2990 2990
SPB 3000 SPB 3000 3000
SPB 3150 SPB 3150 3150
SPB 3350 SPB 3350 3350
SPB 3550 SPB 3550 3550
SPB 3750 SPB 3750 3750
SPB 4000 SPB 4000 4000
SPB 4250 SPB 4250 4250
SPB 4500 SPB 4500 4500
SPB 4750 SPB 4750 4750
SPB 5000 5000
SPB 5300 5300
SPB 5600 5600
SPB 6000 6000
SPB 6300 6300
SPB 6700 6700
SPB 7100 7100
SPB 7500 7500
SPB 8000 8000
SPC
MN
ISO belt ref.
Datum
Wrapped length mm ISO
SPC 2000 SPC 2000 2000
SPC 2120 SPC 2120 2120
SPC 2240 SPC 2240 2240
SPC 2360 SPC 2360 2360
SPC 2500 SPC 2500 2500
SPC 2650 SPC 2650 2650
SPC 2800 SPC 2800 2800
SPC 3000 SPC 3000 3000
SPC 3150 SPC 3150 3150
SPC 3350 SPC 3350 3350
SPC 3550 SPC 3550 3550
SPC 3750 SPC 3750 3750
SPC 4000 SPC 4000 4000
SPC 4250 SPC 4250 4250
SPC 4500 SPC 4500 4500
SPC 4750 SPC 4750 4750
SPC 5000 5000
SPC 5300 5300
SPC 5600 5600
SPC 6000 6000
SPC 6300 6300
SPC 6700 6700
SPC 7100 7100
SPC 7500 7500
SPC 8000 8000
SPC 8500 8500
SPC 9000 9000
SPC 9500 9500
SPC 10000 10000
SPC 10600 10600
Dimensions in bold are available from stock.
Z-38 1/2
Z-39
Z-39 1/2
Z-41 1/2
Z-42
Z-44
Z-45
Z-45 1/2
Z-31 1/2
Z-32 1/2
Z-33 1/2
Z-34 1/2
Z-35 1/2
Z-36
Z-37
Z-37 1/2
Z-24
Z-25
Z-26 1/2
Z-28
Z-29
Z-29 1/2
Z-30 1/2
Z-31
Z-17 1/2
Z-18 1/2
Z-19
Z-19 1/2
Z-20 1/2
Z-22
Z-22 1/2
Z-23 1/2
Z-55
Z-57
Z-59
Z-63 1/2
Z-67
Z-71
Z-75
Z-46
Z-47
Z-48
Z-48 1/2
Z-49
Z-50
Z-51
Z-52
HI-POWER
®
SIZE LISTING
Z
ISO belt ref.
10 mm
Datum length
A
ISO belt ref.
mm ISO
A-41
A-41 1/2
A-42
A-43
A-44
A-45
A-46
A-47
A-33
A-34
A-35
A-36
A-37
A-38
A-39
A-40
A-27
A-27 1/2
A-28
A-28 1/2
A-29 1/2
A-30
A-31
A-32
A-21
A-22
A-23
A-23 1/2
A-24
A-24 1/2
A-25
A-26
A-56
A-57
A-58
A-59
A-60
A-61
A-62
A-48
A-49
A-50
A-51
A-52
A-53
A-54
A-55
995
1005
1020
1070
1080
1140
1170
1180
920
930
955
970
820
845
870
895
755
770
795
805
630
655
695
730
550
580
595
620
470
495
505
520
1420
1470
1520
1630
1720
1820
1920
1200
1220
1245
1255
1270
1295
1320
1340
13 mm
Datum length mm ISO
1080
1090
1105
1130
1155
1180
1205
1230
975
1000
1025
1055
875
900
925
950
780
795
825
850
720
730
745
755
645
655
680
705
570
595
620
630
1460
1485
1510
1535
1560
1585
1610
1255
1280
1310
1330
1355
1385
1410
1435
ISO belt ref.
A-87
A-88
A-89
A-90
A-91
A-92
A-93
A-94
A-79
A-80
A-81
A-82
A-83
A-84
A-85
A-86
A-71
A-72
A-73
A-74
A-75
A-76
A-77
A-78
A-63
A-64
A-65
A-66
A-67
A-68
A-69
A-70
A-108
A-110
A-112
A-118
A-120
A-124
A-128
A-95
A-96
A-97
A-98
A-100
A-102
A-104
A-105
Datum length mm ISO
2245
2270
2295
2325
2350
2375
2400
2425
2040
2070
2095
2120
2145
2170
2195
2220
1840
1865
1890
1915
1940
1965
1990
2020
1635
1660
1690
1715
1735
1765
1790
1815
2780
2830
2880
3035
3085
3185
3290
2450
2475
2500
2525
2575
2625
2680
2705
ISO belt ref.
A-130
A-134
A-136
A-140
A-144
A-147
A-158
A-173
A-180
Dimensions in bold are available from stock.
Datum length mm ISO
3340
3440
3490
3590
3695
3770
4050
4430
4610
13
2
2
14
B-48
B-49
B-50
B-51
B-52
B-53
B-54
B-55
B-40
B-41
B-42
B-43
B-44
B-45
B-46
B-47
B-32
B-33
B-34
B-35
B-36
B-37
B-38
B-39
B-25
B-26
B-27
B-27 1/2
B-28
B-29
B-30
B-31
B-64
B-65
B-66
B-67
B-68
B-69
B-70
B-56
B-57
B-58
B-59
B-60
B-61
B-62
B-63
HI-POWER
®
SIZE LISTING
B
ISO belt ref.
17 mm
Datum length mm ISO
1270
1295
1320
1345
1370
1395
1425
1450
1065
1095
1120
1145
1170
1195
1220
1245
965
990
1015
1040
870
895
920
940
770
795
815
845
695
710
735
745
1675
1700
1730
1755
1780
1805
1830
1475
1500
1525
1550
1575
1600
1625
1650
ISO belt ref.
B-95
B-96
B-97
B-98
B-99
B-100
B-102
B-103
B-87
B-88
B-89
B-90
B-91
B-92
B-93
B-94
B-79
B-80
B-81
B-82
B-83
B-84
B-85
B-86
B-71
B-72
B-73
B-74
B-75
B-76
B-77
B-78
B-118
B-120
B-122
B-124
B-128
B-130
B-131
B-104
B-105
B-106
B-108
B-110
B-112
B-114
B-116
Datum length mm ISO
2465
2490
2515
2540
2565
2590
2640
2665
2260
2285
2310
2335
2365
2390
2415
2440
2060
2085
2110
2135
2160
2185
2210
2235
1855
1880
1905
1930
1955
1980
2005
2030
3050
3100
3150
3200
3300
3350
3380
2695
2720
2745
2795
2845
2895
2945
3000
ISO belt ref.
Dimensions in bold are available from stock.
B-180
B-186
B-195
B-196
B-204
B-208
B-210
B-221
B-225
B-240
B-249
B-270
B-300
B-157
B-158
B-162
B-165
B-167
B-173
B-175
B-177
B-133
B-134
B-136
B-140
B-144
B-147
B-148
B-152
Datum length mm ISO
4625
4775
5005
5030
5250
5335
5385
5625
5730
6110
6340
6870
7635
4040
4065
4165
4240
4295
4445
4495
4545
3430
3455
3505
3610
3710
3785
3810
3910
C-85
C-88
C-90
C-92
C-93
C-95
C-96
C-97
C-71
C-72
C-74
C-75
C-78
C-81
C-82
C-83
C-55
C-59
C-60
C-62
C-65
C-66
C-68
C-70
C-42
C-43
C-46
C-48
C-49
C-51
C-53
C-54
C-112
C-115
C-116
C-118
C-120
C-124
C-128
C-98
C-99
C-100
C-102
C-104
C-105
C-108
C-110
HI-POWER
®
SIZE LISTING
C
ISO belt ref.
22 mm
Datum length mm ISO
2230
2310
2360
2410
2435
2485
2510
2535
1875
1900
1950
1980
2055
2130
2155
2180
1470
1570
1595
1650
1725
1750
1800
1850
1145
1165
1245
1290
1320
1370
1420
1445
2920
2995
3020
3070
3120
3225
3325
2560
2590
2615
2665
2715
2740
2815
2865
ISO belt ref.
C-210
C-222
C-225
C-238
C-240
C-250
C-255
C-265
C-270
C-280
C-285
C-300
C-330
C-158
C-162
C-165
C-173
C-177
C-180
C-195
C-208
C-130
C-132
C-134
C-136
C-140
C-144
C-147
C-153
Datum length mm ISO
5405
5660
5735
6065
6120
6370
6500
6755
6880
7135
7260
7640
8405
4085
4190
4265
4465
4570
4645
5025
5355
3375
3425
3475
3525
3630
3730
3805
3960
D
ISO belt ref.
D-195
D-197
D-204
D-210
D-223
D-240
D-250
D-270
D-282
D-298
D-300
D-330
D-360
D-144
D-158
D-162
D-170
D-173
D-177
D-180
D-187
D-98
D-104
D-110
D-120
D-124
D-128
D-137
D-140
Dimensions in bold are available from stock.
32 mm
Datum length mm ISO
5035
5085
5260
5415
5680
6115
6365
6875
7180
7585
7635
8400
9160
3740
4095
4195
4400
4475
4575
4650
4830
2570
2720
2975
3130
3230
3330
3560
3635
15
2
HI-POWER
®
DUBL-V SIZE LISTING
2
AA51
AA55
AA60
AA68
AA75
AA80
AA85
AA90
AA92
AA96
AA105
AA112
AA120
AA128
BB
Belt ref.
BB73
BB74
BB75
BB81
BB85
BB90
BB92
BB93
BB94
BB97
BB105
BB107
BB51
BB53
BB55
BB60
BB68
BB71
BB35
BB38
BB42
BB43
BB45
BB46
BB108
BB111
BB112
BB116
16
AA
Belt ref.
Effective length
Datum length mm RMA mm ISO
2390
2490
2720
2900
3100
3305
1350
1450
1575
1780
1960
2085
2210
2340
13 mm
17 mm
Effective length
Datum length mm RMA mm ISO
2410
2435
2460
2535
2740
2790
1925
1955
1980
2130
2235
2360
1370
1420
1470
1600
1800
1880
965
1040
1140
1165
1215
1240
2815
2895
2920
3020
2390
2415
2440
2515
2720
2770
1905
1930
1955
2110
2210
2335
1345
1395
1450
1575
1780
1855
940
1015
1120
1145
1195
1220
2795
2870
2895
3000
2375
2475
2705
2880
3085
3290
1330
1435
1560
1765
1940
2070
2195
2325
BB
Belt ref.
BB130
BB136
BB144
BB155
BB158
BB168
BB169
BB173
BB118
BB120
BB122
BB123
BB124
BB127
BB128
BB129
BB180
BB195
BB210
BB226
BB228
BB230
BB240
BB270
BB277
BB300
17 mm
Effective Datum length length mm RMA mm ISO
3375
3528
3730
4010
4085
4340
4365
4470
3070
3120
3170
3195
3220
3300
3325
3350
4645
5025
5410
5814
5864
5915
6130
6895
7070
7655
3350
3505
3710
3990
4065
4320
4345
4445
3050
3100
3150
3175
3200
3275
3300
3325
4625
5005
5385
5755
5805
5855
6110
6870
7050
7635
CC
Belt ref.
CC128
CC136
CC144
CC158
CC162
CC173
CC180
CC195
CC75
CC81
CC85
CC90
CC96
CC105
CC112
CC120
CC210
CC240
CC270
CC300
CC330
CC360
CC390
CC420
DD
Belt ref.
DD210
DD270
DD300
DD360
22 mm
Effective Datum length length mm RMA mm ISO
3360
3560
3765
4120
4220
4500
4680
5060
2010
2165
2265
2395
2545
2775
2950
3155
5440
6150
6915
7675
8440
9200
9960
10725
3325
3525
3730
4085
4190
4465
4645
5025
1980
2130
2230
2360
2510
2740
2920
3120
5405
6120
6880
7640
8405
9165
9930
10690
32 mm
Effective Datum length length mm RMA mm ISO
5465
6925
7690
9215
5415
6875
7635
9160
This Hi-Power ® belt is characterised by its double-V profile. It is the ideal solution for "serpentine" drives (drives with counterrotating shafts) requiring power to be transmitted to grooved pulleys from both the top and the bottom of the belts.
Dimensions in bold are available from stock.
POWERBAND ® SIZE LISTING
QUAD-POWER II POWERBAND
®
3VX 5VX
Belt ref.
Effective length
Belt ref.
Effective length
RMA
3VX-630
3VX-670
3VX-710
3VX-750
3VX-800
3VX-850
3VX-900
3VX-950
3VX-1000
3VX-1060
3VX-1120
3VX-1180
3VX-1250
3VX-1320
3VX-1400
3VX-400
3VX-425
3VX-450
3VX-475
3VX-500
3VX-530
3VX-560
3VX-600
3VX-250
3VX-265
3VX-280
3VX-300
3VX-315
3VX-335
3VX-355
3VX-375
mm RMA
2540
2690
2845
2995
3175
3355
3555
1600
1700
1805
1905
2030
2160
2285
2415
1015
1080
1145
1205
1270
1345
1420
1525
800
850
900
950
635
675
710
760
RMA mm RMA
2030
2160
2285
2415
2540
2690
2845
2995
1270
1345
1420
1525
1600
1700
1805
1905
3175
3355
3555
3810
4065
4320
4570
4825
5080
5VX-500
5VX-530
5VX-560
5VX-600
5VX-630
5VX-670
5VX-710
5VX-750
5VX-800
5VX-850
5VX-900
5VX-950
5VX-1000
5VX-1060
5VX-1120
5VX-1180
5VX-1250
5VX-1320
5VX-1400
5VX-1500
5VX-1600
5VX-1700
5VX-1800
5VX-1900
5VX-2000
* Dimensions according to ISO 4184.
Hi-Power ® PowerBand ® B, C and D sections are available on request.
8V and 8VK sizes with aramid cord are available on special request.
3VX and 5VX are available in 2, 3, 4 and 5 strands;
8V is available in 3, 4 and 5 strands.
8V PowerBand ® belts are designed for use both in 8V and 25J pulleys.
Dimensions in bold are available from stock.
9J 2000
9J 2120
9J 2240
9J 2360
9J 2500
9J 2650
9J 2800
9J 3000
9J 1250
9J 1320
9J 1400
9J 1500
9J 1600
9J 1700
9J 1800
9J 1900
9J 3150
9J 3350
9J 3550
9J
Belt ref.
Effective length mm ISO**
2000
2120
2240
2360
2500
2650
2800
3000
1250
1320
1400
1500
1600
1700
1800
1900
3150
3350
3550
SUPER HC
®
POWERBAND
®
SPB
Belt ref.
Datum length
Belt ref.
SPB 2120
SPB 2240
SPB 2360
SPB 2500
SPB 2650
SPB 2800
SPB 3000
SPB 3150
SPB 3350
SPB 3550
SPB 3750
SPB 4000
SPB 4250
SPB 4500 mm ISO*
3350
3550
3750
4000
4250
4500
2120
2240
2360
2500
2650
2800
3000
3150
SPB 4750
SPB 5000
SPB 5300
SPB 5600
SPB 6000
SPB 6300
SPB 6700
SPB 7100
SPB 7500
SPB 8000
Datum length mm ISO*
4750
5000
5300
5600
6000
6300
6700
7100
7500
8000
15J
Belt ref.
Effective length mm ISO**
9J / 15J / 25J are
ISO standards for
RMA 3V-PB / 5V-PB / 8V-PB.
** Dimensions according to
ISO 5290.
15J 3150
15J 3350
15J 3550
15J 3750
15J 4000
15J 4250
15J 4500
15J 4750
15J 5000
15J 5300
15J 5600
15J 6000
15J 6300
15J 6700
15J 7100
15J 8000
15J 9000
15J 1250
15J 1320
15J 1400
15J 1500
15J 1600
15J 1700
15J 1800
15J 1900
15J 2000
15J 2120
15J 2240
15J 2360
15J 2500
15J 2650
15J 2800
15J 3000
5000
5300
5600
6000
6300
6700
7100
8000
9000
3150
3350
3550
3750
4000
4250
4500
4750
2000
2120
2240
2360
2500
2650
2800
3000
1250
1320
1400
1500
1600
1700
1800
1900
SPC
Belt ref.
SPC 3000
SPC 3150
SPC 3350
SPC 3550
SPC 3750
SPC 4000
SPC 4250
SPC 4500
SPC 4750
SPC 5000
Datum length mm ISO*
3000
3150
3350
3550
3750
4000
4250
4500
4750
5000
8V (25J)
Belt ref.
Effective length
RMA
8V 2500
8V 2650
8V 2800
8V 3000
8V 3150
8V 3350
8V 3550
8V 3750
8V 4000
8V 4250
8V 4500
8V 4750
8V 5000
8V 5600
8V 6000
8V 1600
8V 1700
8V 1800
8V 1900
8V 2000
8V 2120
8V 2240
8V 2360
8V 1000
8V 1060
8V 1120
8V 1180
8V 1250
8V 1320
8V 1400
8V 1500
mm ISO**
10160
10795
11430
12065
12700
14225
15240
6350
6730
7110
7620
8000
8510
9015
9525
4065
4320
4570
4825
5080
5385
5690
5995
2540
2690
2845
2995
3175
3355
3555
3810
17
2
MICRO-V ® SIZE LISTING
PJ
Belt ref.
2
DIN 7867
PJ 914
PJ 955
PJ 965
PJ 1016
PJ 1041
PJ 1067
PJ 1092
PJ 1105
PJ 1110
PJ 1118
PJ 1123
PJ 1130
PJ 1136
PJ 1150
PJ 1168
PJ 1194
PJ 660
PJ 711
PJ 723
PJ 737
PJ 762
PJ 813
PJ 838
PJ 864
PJ 406
PJ 432
PJ 457
PJ 483
PJ 508
PJ 559
PJ 584
PJ 610
PJ 1200
PJ 1222
PJ 1233
PJ 1244
PJ 1262
PJ 1270
PJ 1280
PJ 1300
PJ 1309
PJ 1321
PJ 1333
PJ 1355
PJ 1371
PJ 1397
Effective length mm DIN/ISO
1110
1118
1123
1130
1136
1150
1168
1194
914
955
965
1016
1041
1067
1092
1105
660
711
723
737
762
813
838
864
406
432
457
483
508
559
584
610
1309
1321
1333
1355
1371
1397
1200
1222
1233
1244
1262
1270
1280
1300
PJ
Belt ref.
PL
Belt ref.
DIN 7867
PL 954
PL 991
PL 1075
PL 1270
PL 1333
PL 1371
PL 1397
PL 1422
PL 1562
PL 1613
PL 1664
PL 1715
PL 1765
PL 1803
PL 1842
PL 1943
PL 1981
PL 2019
PL 2070
PL 2096
PL 2134
PL 2197
DIN 7867
PJ 1428
PJ 1439
PJ 1473
PJ 1549
PJ 1600
PJ 1651
PJ 1663
PJ 1752
PJ 1854
PJ 1895
PJ 1910
PJ 1930
PJ 1956
PJ 1981
PJ 1992
PJ 2083
PJ 2210
PJ 2337
PJ 2489
RMA
437 J
440 J
442 J
445 J
447 J
453J
460 J
470 J
360 J
376 J
380 J
400 J
410 J
420 J
430 J
435 J
260 J
280 J
285 J
290 J
300 J
320 J
330 J
340 J
160 J
170 J
180 J
190 J
200 J
220 J
230 J
240 J
515 J
520 J
525 J
534 J
540 J
550 J
473 J
480 J
485 J
490 J
497 J
500 J
504 J
512 J
710 L
725 L
765 L
780 L
795 L
815 L
560 L
615 L
635 L
655 L
675 L
695 L
825 L
840 L
865 L
RMA
375 L
390 L
423 L
500 L
525 L
540 L
550 L
RMA
730 J
746 J
752 J
760 J
770 J
780 J
784 J
820 J
562 J
567 J
580 J
610 J
630 J
650 J
655 J
690 J
870 J
920 J
980 J
Effective length mm DIN/ISO
1854
1895
1910
1930
1956
1981
1992
2083
1428
1439
1473
1549
1600
1651
1663
1752
2210
2337
2489
PL
Belt ref.
DIN 7867
PL 2235
PL 2324
PL 2362
PL 2476
PL 2515
PL 2705
PL 2743
PL 2845
PL 2896
PL 2921
PL 2997
PL 3086
PL 3124
PL 3289
PL 3327
PL 3493
PL 3696
RMA
1140 L
1150 L
1180 L
1215 L
1230 L
1295 L
1310 L
1375 L
1455 L
880 L
915 L
930 L
975 L
990 L
1065 L
1080 L
1120 L
Effective length mm DIN/ISO
954
991
1075
1270
1333
1371
1397
1803
1842
1943
1981
2019
2070
1422
1562
1613
1664
1715
1765
2096
2134
2197
PM
Belt ref.
DIN 7867 RMA
PM 2286
PM 2388
900 M
940 M
PM 2515 990 M
PM 2693 1060 M
PM 2832 1115 M
PM 2921 1150 M
PM 3010 1185 M
PM 3124 1230 M
PM 3327 1310 M
PM 3531 1390 M
PM 3734 1470 M
PM 4089 1610 M
PM 4191 1650 M
PM 4470 1760 M
PM 4648 1830 M
PM 5029 1980 M
PM 5410 2130 M
PM 6121 2410 M
PM 6502 2560 M
PM 6883 2710 M
PM 7646 3010 M
PM 8408 3310 M
PM 9169 3610 M
PM 9931 3910 M
Dimensions in bold are available from stock.
Effective length mm DIN/ISO
3327
3531
3734
4089
4191
4470
4648
5029
2286
2388
2515
2693
2832
2921
3010
3124
5410
6121
6502
6883
7646
8408
9169
9931
Effective length mm DIN/ISO
2896
2921
2997
3086
3124
3289
3327
3493
3696
2235
2324
2362
2476
2515
2705
2743
2845
18
POLYFLEX ® JB™ SIZE LISTING
3M - JB
Belt ref.
3M-JB 272
3M-JB 280
3M-JB 290
3M-JB 300
3M-JB 307
3M-JB 315
3M-JB 319
3M-JB 325
3M-JB 335
3M-JB 345
3M-JB 350
3M-JB 355
3M-JB 365
3M-JB 375
3M-JB 387
3M-JB 400
3M-JB 175
3M-JB 180
3M-JB 185
3M-JB 190
3M-JB 195
3M-JB 200
3M-JB 206
3M-JB 212
3M-JB 218
3M-JB 224
3M-JB 230
3M-JB 236
3M-JB 243
3M-JB 250
3M-JB 258
3M-JB 265
3M-JB 406
3M-JB 412
3M-JB 425
3M-JB 437
3M-JB 450
3M-JB 462
3M-JB 475
3M-JB 487
3M-JB 500
3M-JB 515
3M-JB 530
3M-JB 545
3M-JB 553
3M-JB 560
Dimensions in bold are available from stock.
Effective length mm
335
345
350
355
365
375
387
400
272
280
290
300
307
315
319
325
218
224
230
236
243
250
258
265
175
180
185
190
195
200
206
212
500
515
530
545
553
560
406
412
425
437
450
462
475
487
3M - JB
Belt ref.
3M-JB 580
3M-JB 600
3M-JB 615
3M-JB 630
3M-JB 650
3M-JB 670
3M-JB 690
3M-JB 710
3M-JB 730
3M-JB 750
5M - JB
Belt ref.
5M-JB 450
5M-JB 462
5M-JB 475
5M-JB 487
5M-JB 500
5M-JB 515
5M-JB 530
5M-JB 545
5M-JB 560
5M-JB 580
5M-JB 600
5M-JB 615
5M-JB 630
5M-JB 650
5M-JB 280
5M-JB 290
5M-JB 300
5M-JB 307
5M-JB 315
5M-JB 325
5M-JB 335
5M-JB 345
5M-JB 355
5M-JB 365
5M-JB 375
5M-JB 387
5M-JB 400
5M-JB 412
5M-JB 425
5M-JB 437
Effective length mm
580
600
615
630
650
670
690
710
730
750
5M - JB
Belt ref.
5M-JB 1060
5M-JB 1090
5M-JB 1120
5M-JB 1150
5M-JB 1180
5M-JB 1220
5M-JB 1250
5M-JB 1280
5M-JB 1320
5M-JB 1360
5M-JB 1400
5M-JB 1450
5M-JB 1500
5M-JB 670
5M-JB 690
5M-JB 710
5M-JB 730
5M-JB 750
5M-JB 775
5M-JB 800
5M-JB 825
5M-JB 850
5M-JB 875
5M-JB 900
5M-JB 925
5M-JB 950
5M-JB 975
5M-JB 1000
5M-JB 1030
Effective length mm
560
580
600
615
630
650
450
462
475
487
500
515
530
545
355
365
375
387
400
412
425
437
280
290
300
307
315
325
335
345
Please contact Gates application engineers for
3M-JB drive design data.
Effective length
1280
1320
1360
1400
1450
1500
1030
1060
1090
1120
1150
1180
1220
1250
825
850
875
900
925
950
975
1000
mm
670
690
710
730
750
775
800
2
19
1
POLYFLEX
®
JB™ SIZE LISTING
7M - JB
Belt ref.
7M - JB
Belt ref.
7M-JB 800
7M-JB 825
7M-JB 850
7M-JB 875
7M-JB 900
7M-JB 925
7M-JB 950
7M-JB 975
7M-JB 1000
7M-JB 1030
7M-JB 1060
7M-JB 1090
7M-JB 1120
7M-JB 1150
7M-JB 1180
7M-JB 1220
7M-JB 500
7M-JB 515
7M-JB 530
7M-JB 545
7M-JB 560
7M-JB 580
7M-JB 600
7M-JB 615
7M-JB 630
7M-JB 650
7M-JB 670
7M-JB 690
7M-JB 710
7M-JB 730
7M-JB 750
7M-JB 775
7M-JB 1250
7M-JB 1280
7M-JB 1320
7M-JB 1360
7M-JB 1400
7M-JB 1450
7M-JB 1500
7M-JB 1550
7M-JB 1600
7M-JB 1650
7M-JB 1700
7M-JB 1750
7M-JB 1800
7M-JB 1850
Effective length
968
993
1023
1053
1083
1113
1143
1173
768
793
818
843
868
893
918
943
605
620
640
660
680
703
723
743
mm
490
505
520
535
550
570
590
1543
1593
1643
1693
1743
1793
1843
1213
1243
1273
1313
1353
1393
1443
1493
7M-JB 1900
7M-JB 1950
7M-JB 2000
7M-JB 2060
7M-JB 2120
7M-JB 2180
7M-JB 2240
7M-JB 2300
Standard widths are:
3M-JB:
5M-JB:
2 and 3 ribs
2, 3, 4 and 5 ribs
7MJB: 2, 3, 4 and 5 ribs
11M-JB: 2 & 3 ribs
Effective length mm
1893
1943
1993
2053
2113
2173
2233
2293
11M - JB
Belt ref.
Dimensions in bold are available from stock.
11M-JB 1120
11M-JB 1150
11M-JB 1180
11M-JB 1220
11M-JB 1250
11M-JB 1280
11M-JB 1320
11M-JB 1360
11M-JB 1400
11M-JB 1450
11M-JB 1500
11M-JB 1550
11M-JB 1600
11M-JB 1650
11M-JB 1700
11M-JB 1750
11M-JB 710
11M-JB 730
11M-JB 750
11M-JB 775
11M-JB 800
11M-JB 825
11M-JB 850
11M-JB 875
11M-JB 900
11M-JB 925
11M-JB 950
11M-JB 975
11M-JB 1000
11M-JB 1030
11M-JB 1060
11M-JB 1090
11M-JB 1800
11M-JB 1850
11M-JB 1900
11M-JB 1950
11M-JB 2000
11M-JB 2060
11M-JB 2120
11M-JB 2180
11M-JB 2240
11M-JB 2300
Effective length
1342
1382
1432
1482
1532
1582
1632
1682
1072
1102
1132
1162
1202
1232
1262
1302
857
882
907
932
957
982
1012
1042
mm
692
712
732
757
782
807
832
1732
1782
1832
1882
1932
1982
2042
2102
2162
2222
2282
20
DRIVE DESIGN
Before designing a V-belt drive, you need to know these four things:
1. power requirement of the drive;
2. the RPM of the driveR machine;
3. the RPM of the driveN machine;
4. the approximate centre distance for the drive.
Important!
This drive design manual has been adapted to the ISO 1081 standard, which involves a change in belt length terminology. All belts according to ISO 4184 in this manual are identified with their datum length. This length
is only a reference and replaces the former pitch length for V-belts. In order to find the pitch length, the values mentioned in the tables below have to be added to or subtracted from this datum length.
V-Belts
1
FOR
SECTION
Subtract
SPZ SPA SPB SPC 3V 5V 8V/25J 9J
XPZ XPA XPB XPC 3VX 5VX 8VK
0 0 0 0 4 7.5
16 4
15J Z A B C D
7.5
0 0 0 0 0
Micro-V ® and Polyflex ® JB™ Belts
PJ PL PM 5M-JB 7M-JB 11M-JB FOR
SECTION
Add 8 22 31 4 7 11
STEP 1
SELECT THE DESIRED SERVICE LIFE RANGE
Service life of a belt drive depends on the specific use and function. Usually a machine completes 2 to 5 years of service before needing new belts. For the belt drive, this may mean an actual operating time from a few hundred hours to many thousands of hours.
The performance rating (belt life) given is based on constant load / constant speed laboratory testing under controlled environmental conditions.
By selecting the appropriate service life for a drive and designing accordingly, you obtain the most economical drive for your specific application. You can design your drive through the computerised design service offered by Gates, by using DesignFlex, Gates’ Windows based drive design software program (see also page 93) or by using this manual.
In selecting the service life also consider the following factors:
1. the probability of more severe use of the drive in some special applications or geographical areas;
2. the machine-warranty period;
3. the cost of down-time needed to replace belts.
- Gates Drive Design Manual facilitates the design of
Gates V-belt drives for different service lives according to the needs of the machine by applying the appropriate additional kW.
- Industrial machinery for continuous use is usually designed without a service life correction factor. This results in 3 to 5 years belt life.
21
DRIVE DESIGN
Table No. 1 - Service factors
DriveN machine
The machines listed below are representative examples only. Select the group of which the load characteristics most closely approximate those of the machine being considered.
3
Agitators for liquids
Blowers & exhausters
Centrifugal pumps & compressors
Fans up to 7.5 kW
Light-duty conveyors
Conveyor belts for sand, grain, etc.
Dough mixers
Fans over 7.5 kW
Generators
Line shafts
Laundry machinery
Machine tools
Punches-presses-shears
Printing machinery
Positive displacement rotary pumps
Revolving and vibrating screens
Brick machinery
Bucket elevators
Exciters
Piston compressors
Conveyors (drag-pan-screw)
Hammer mills
Paper mill beaters
Piston pumps
Positive displacement blowers
Pulverizers
Saw mill and woodworking machinery
Textile machinery
Crushers (gyratory-jaw-roll)
Mills (ball-rod-tube)
Hoists
Rubber calenders-extruders-mills
AC Motors:
Normal torque, squirrel cage, synchronous.
DC Motors:
Shunt wound.
Engines:
Multiple cylinder internal, combustion.
DriveR*
AC Motors:
High torque, single phase, slip ring.
DC Motors:
Series wound, compound wound.
Engines:
Single cylinder internal combustion.
Line shafts - clutches
Intermittent service
Up to 8 hrs daily or seasonal
Normal service
8-16 hrs daily
Continuous Intermittent service service
>16 hrs daily
Up to 8 hrs daily or seasonal
Normal service
8-16 hrs daily
Continuous service
>16 hrs daily
1.0
1.1
1.2
1.3
1.1
1.2
1.3
1.4
1.2
1.3
1.4
1.5
1.1
1.2
1.4
1.5
1.2
1.3
1.5
1.6
1.3
1.4
1.6
1.8
* Apply indicated service factor to continuous engine rating. Deduct 0.2 (with a minimum service factor of 1.0) when applying to maximum intermittent rating.
The use of a service factor of 2.0 is recommended for equipment subject to choking and to stalling.
22
DRIVE DESIGN
STEP 2
DETERMINE THE DESIGN POWER
Design power = service factor x drive power (kW).
A. Select the proper service factor from Table No. 1.
If your driveN machine is not listed, use the service factor of a machine with comparable starting, running and shock load characteristics.
B. The power requirement of the drive is usually taken as the name plate rating of the driveR. The actual load requirement of the driveN machine, if known, may be used as the power requirement to give a more accurate design.
C. Determine the design kilowatt by multiplying the power requirement of the drive by the service factor.
STEP 3
SELECT THE PROPER V-BELT SECTION
Speed of the faster shaft and design power determine the proper cross-section.
A. At the bottom of Table No. 2, 3 or 4 read across to the design power of the drive, interpolating if necessary.
B. Read straight up to the rpm of the faster shaft.
Interpolate if necessary.
C. The designation (e.g.: XPZ - SPZ - 3VX - 3V etc.) in the area surrounding the point of intersection is the proper belt cross-section.
NOTE: if the intersection is found between two areas, select the most economical belt section.
3
23
3
DRIVE DESIGN
Table No. 2 - Cross-section selection chart - V-belts
5000
4000
3000
2000
XPZ - SPZ
3 VX - 3 V
9 J
1000
900
800
700
600
500
400
300
200
XPA - SPA
100
2
XPB - SPB
5 VX - 5 V
15 J
3 4 5 6 7 8 9 10 20 30
Design kilowatt
40 50 60 70 8090 100
SPC
8V/25J
200 300 400 500
1000
900
800
700
600
500
400
300
200
5000
4000
3000
2000
Z
100
A
B
C
D
E
2 3 4 5 6 7 8 9 10 20 30
Design kilowatt
40 50 60 70 8090 100 200 300 400 500
24
DRIVE DESIGN
Table No. 3 - Cross-section selection chart - Micro-V
®
belts
10000
1160
1000
890
800
690
575
500
435
400
300
250
200
5000
4000
3450
3000
2500
2000
1750
1500
150
100
0.1
PJ
0.5
1
PL
2 3 4 5 10
Design kilowatt
20
PM
50 100 200 500
3
Table No. 4 - Cross-section selection chart - Polyflex ® JB™ belts
10000
8000
6500
5000
5M
3450
3000
7M
2000
1750
1160
1000
870
690
575
500
0.5
0.8
1 2 3 4 5 7 10
Design kilowatt
11M
20 30 40 50 70 100
25
DRIVE DESIGN
3
Table No. 5 - Recommended pulley diameters
Section
PJ
PL
PM
SPZ / 3V
SPA
SPB/ 5V
SPC
8V / 25J
8VK
XPZ / 3VX
XPA
20 24 26 28 30 32 34 36 38 40 42 45 48 50 53 56 60 63 67 71 75 80 85 90 95 100 106 112 118
X X X X X X X X
XPB / 5VX
XPC
Z
A
B
C
D
5M
7M
X X X X
11M
M = Only for belts with moulded notch construction.
X X
X X
X X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
M
X
X
X
X
M
X
X
X
X
X
M
X
X
X
X
M
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
M
X
X
X
X
X
X
X
M
X
X
X
X
X
X
X
X
X
M
X
X
X
X
X
X
X
M
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
M
X
X
X
X
X
X
X
X
X
X
M
X
X
X
X
X
X
X
X
Table No. 6 - Available speed ratios with standard diameter pulleys
Pulley Ø mm
710
800
900
1000
1120
1250
1400
1600
315
355
400
450
500
560
630
190
200
212
224
236
250
280
118
125
132
140
150
160
170
180
80
85
90
95
100
106
112
53
56
60
63
67
71
75
36
38
40
42
45
48
50
20
24
26
28
30
32
34
20 24 26 28 30 32 34 36 38 40 42 45 48 50 53 56 60 63 67 71 75 80 85 90 95 100 106 112 118
1.00
1.20
1.30
1.40
1.50
1.60
1.70
1.80
1.90
2.00
2.10
2.25
2.40
2.50
2.65
2.80
3.00 3.15
3.35
3.55
3.75
4.00
4.25
4.50
4.75
5.00
5.30
5.60
5.90
1.00
1.08
1.17
1.25
1.33
1.42
1.50
1.58
1.67
1.75
1.88
2.00
2.08
2.21
2.33
2.50 2.63
2.79
2.96
3.13
3.33
3.54
3.75
3.96
4.17
4.42
4.67
4.92
1.00
1.08
1.15
1.23
1.31
1.38
1.46
1.54
1.62
1.73
1.85
1.92
2.04
2.15
2.31 2.42
2.58
2.73
2.88
3.08
3.27
3.46
3.65
3.85
4.08
4.31
4.54
1.00
1.07
1.14
1.21
1.29
1.36
1.43
1.50
1.61
1.71
1.79
1.89
2.00
2.14 2.25
2.39
2.54
2.68
2.86
3.04
3.21
3.39
3.57
3.79
4.00
4.21
1.00
1.07
1.13
1.20
1.27
1.33
1.40
1.50
1.60
1.67
1.77
1.87
2.00 2.10
2.23
2.37
2.50
2.67
2.83
3.00
3.17
3.33
3.53
3.73
3.93
1.00
1.06
1.13
1.19
1.25
1.31
1.41
1.50
1.56
1.66
1.75
1.88 1.97
2.09
2.22
2.34
2.50
2.66
2.81
2.97
3.13
3.31
3.50
3.69
1.00
1.06
1.12
1.18
1.24
1.32
1.41
1.47
1.56
1.65
1.76 1.85
1.97
2.09
2.21
2.35
2.50
2.65
2.79
2.94
3.12
3.29
3.47
1.00
1.06
1.11
1.17
1.25
1.33
1.39
1.47
1.56
1.67 1.75
1.86
1.97
2.08
2.22
2.36
2.50
2.64
2.78
2.94
3.11
3.28
1.00
1.05
1.11
1.18
1.26
1.32
1.39
1.47
1.58 1.66
1.76
1.87
1.97
2.11
2.24
2.37
2.50
2.63
2.79
2.95
3.11
1.00
1.05
1.13
1.20
1.25
1.33
1.40
1.50 1.58
1.68
1.78
1.88
2.00
2.13
2.25
2.38
2.50
2.65
2.80
2.95
1.00
1.07
1.14
1.19
1.26
1.33
1.43 1.50
1.60
1.69
1.79
1.90
2.02
2.14
2.26
2.38
2.52
2.67
2.81
1.00
1.07
1.11
1.18
1.24
1.33 1.40
1.49
1.58
1.67
1.78
1.89
2.00
2.11
2.22
2.36
2.49
2.62
1.00
1.04
1.10
1.17
1.25 1.31
1.40
1.48
1.56
1.67
1.77
1.88
1.98
2.08
2.21
2.33
2.46
1.00
1.06
1.12
1.20 1.26
1.34
1.42
1.50
1.60
1.70
1.80
1.90
2.00
2.12
2.24
2.36
1.00
1.06
1.13 1.19
1.26
1.34
1.42
1.51
1.60
1.70
1.79
1.89
2.00
2.11
2.23
1.00
1.07 1.13
1.20
1.27
1.34
1.43
1.52
1.61
1.70
1.79
1.89
2.00
2.11
1.00 1.05
1.12
1.18
1.25
1.33
1.42
1.50
1.58
1.67
1.77
1.87
1.97
1.00
1.06
1.13
1.19
1.27
1.35
1.43
1.51
1.59
1.68
1.78
1.87
1.00
1.06
1.12
1.19
1.27
1.34
1.42
1.49
1.58
1.67
1.76
1.00
1.06
1.13
1.20
1.27
1.34
1.41
1.49
1.58
1.66
1.00
1.07
1.13
1.20
1.27
1.33
1.41
1.49
1.57
1.00
1.06
1.13
1.19
1.25
1.33
1.40
1.48
1.00
1.06
1.12
1.18
1.25
1.32
1.39
1.00
1.06
1.11
1.18
1.24
1.31
1.00
1.05
1.12
1.18
1.24
1.00
1.06
1.12
1.18
1.00
1.06
1.11
1.00
1.05
1.00
26
DRIVE DESIGN
125 132 140 150 160 170 180 190 200 212 224 236 250 280 315 355 400 450 500 560 630 710 800 900 1000 1120 1250 1400 1600
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X X X
X X X
X
X
X
X X
X
X
X
X X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
M M M M X X X X X X X X X X
M M M M M M X X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X X
X X X
X X X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X X
X
X
X
X
X
X
X
X
X X X
X X X
X X X
X X
X X X
X X X
X X X
X X X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X X
X X
X
X
X
X
X
X
X
X X X
X
X X
X X X
X X X
X X X
X
X
X
X
X
X X X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X X
X X
X
X
X
X
X X
X
X
X
X
X
X
X
X
Section
PJ
PL
PM
SPZ / 3V
SPA
SPB/ 5V
SPC
8V / 25J
8VK
XPZ / 3VX
XPA
XPB / 5VX
XPC
Z
A
B
C
D
5M
7M
11M
125 132 140 150 160 170 180 190 200 212 224 236 250 280 315 355 400 450 500 560 630 710 800 900 1000 1120 1250 1400 1600
Pulley Ø mm
6.25
6.60
7.00
7.50
8.00
8.50
9.00 9.50 10.00 10.60 11.20 11.80 12.50 14.00 15.75 17.75 20.00 22.50 25.00 28.00
5.21
5.50
5.83
6.25
6.67
7.08
7.50 7.92
8.33
8.83
9.33
9.83 10.42 11.67 13.13 14.79 16.67 18.75 20.83 23.33 26.25 29.58
4.81
5.08
5.38
5.77
6.15
6.54
6.92 7.31
7.69
8.15
8.62
9.08
9.62 10.77 12.12 13.65 15.38 17.31 19.23 21.54 24.23 27.31
4.46
4.71
5.00
5.36
5.71
6.07
6.43 6.79
7.14
7.57
8.00
8.43
8.93 10.00 11.25 12.68 14.29 16.07 17.86 20.00 22.50 25.36 28.57
4.17
4.40
4.67
5.00
5.33
5.67
6.00 6.33
6.67
7.07
7.47
7.87
8.33
9.33 10.50 11.83 13.33 15.00 16.67 18.67 21.00 23.67 26.67
3.91
4.13
4.38
4.69
5.00
5.31
5.63 5.94
6.25
6.63
7.00
7.38
7.81
8.75
9.84 11.09 12.50 14.06 15.63 17.50 19.69 22.19 25.00 28.13
3.68
3.88
4.12
4.41
4.71
5.00
5.29 5.59
5.88
6.24
6.59
6.94
7.35
8.24
9.26 10.44 11.76 13.24 14.71 16.47 18.53 20.88 23.53 26.47 29.41
3.47
3.67
3.89
4.17
4.44
4.72
5.00 5.28
5.56
5.89
6.22
6.56
6.94
7.78
8.75
9.86 11.11 12.50 13.89 15.56 17.50 19.72 22.22 25.00 27.78
3.29
3.47
3.68
3.95
4.21
4.47
4.74 5.00
5.26
5.58
5.89
6.21
6.58
7.37
8.29
9.34 10.53 11.84 13.16 14.74 16.58 18.68 21.05 23.68 26.32 29.47
3.13
3.30
3.50
3.75
4.00
4.25
4.50 4.75
5.00
5.30
5.60
5.90
6.25
7.00
7.88
8.88 10.00 11.25 12.50 14.00 15.75 17.75 20.00 22.50 25.00 28.00
2.98
3.14
3.33
3.57
3.81
4.05
4.29 4.52
4.76
5.05
5.33
5.62
5.95
6.67
7.50
8.45
9.52 10.71 11.90 13.33 15.00 16.90 19.05 21.43 23.81 26.67 29.76
2.78
2.93
3.11
3.33
3.56
3.78
4.00 4.22
4.44
4.71
4.98
5.24
5.56
6.22
7.00
7.89
8.89 10.00 11.11 12.44 14.00 15.78 17.78 20.00 22.22 24.89 27.78
2.60
2.75
2.92
3.13
3.33
3.54
3.75 3.96
4.17
4.42
4.67
4.92
5.21
5.83
6.56
7.40
8.33
9.38 10.42 11.67 13.13 14.79 16.67 18.75 20.83 23.33 26.04 29.17
2.50
2.64
2.80
3.00
3.20
3.40
3.60 3.80
4.00
4.24
4.48
4.72
5.00
5.60
6.30
7.10
8.00
9.00 10.00 11.20 12.60 14.20 16.00 18.00 20.00 22.40 25.00 28.00
2.36
2.49
2.64
2.83
3.02
3.21
3.40 3.58
3.77
4.00
4.23
4.45
4.72
5.28
5.94
6.70
7.55
8.49 9.43 10.57 11.89 13.40 15.09 16.98 18.87 21.13 23.58 26.42
2.23
2.36
2.50
2.68
2.86
3.04
3.21 3.39
3.57
3.79
4.00
4.21
4.46
5.00
5.63
6.34
7.14
8.04 8.93 10.00 11.25 12.68 14.29 16.07 17.86 20.00 22.32 25.00 28.57
2.08
2.20
2.33
2.50
2.67
2.83
3.00 3.17
3.33
3.53
3.73
3.93
4.17
4.67
5.25
5.92
6.67
7.50 8.33
9.33 10.50 11.83 13.33 15.00 16.67 18.67 20.83 23.33 26.67
1.98
2.10
2.22
2.38
2.54
2.70
2.86 3.02
3.17
3.37
3.56
3.75
3.97
4.44
5.00
5.63
6.35
7.14 7.94
8.89 10.00 11.27 12.70 14.29 15.87 17.78 19.84 22.22 25.40
1.87
1.97
2.09
2.24
2.39
2.54
2.69 2.84
2.99
3.16
3.34
3.52
3.73
4.18
4.70
5.30
5.97
6.72 7.46
8.36
9.40 10.60 11.94 13.43 14.93 16.72 18.66 20.90 23.88
1.76
1.86
1.97
2.11
2.25
2.39
2.54 2.68
2.82
2.99
3.15
3.32
3.52
3.94
4.44
5.00
5.63
6.34 7.04
7.89
8.87 10.00 11.27 12.68 14.08 15.77 17.61 19.72 22.54
1.67
1.76
1.87
2.00
2.13
2.27
2.40 2.53
2.67
2.83
2.99
3.15
3.33
3.73
4.20
4.73
5.33
6.00 6.67
7.47
8.40
9.47 10.67 12.00 13.33 14.93 16.67 18.67 21.33
1.56
1.65
1.75
1.88
2.00
2.13
2.25 2.38
2.50
2.65
2.80
2.95
3.13
3.50
3.94
4.44
5.00
5.63 6.25
7.00
7.88
8.88 10.00 11.25 12.50 14.00 15.63 17.50 20.00
1.47
1.55
1.65
1.76
1.88
2.00
2.12 2.24
2.35
2.49
2.64
2.78
2.94
3.29
3.71
4.18
4.71
5.29 5.88
6.59
7.41
8.35
9.41 10.59 11.76 13.18 14.71 16.47 18.82
1.39
1.47
1.56
1.67
1.78
1.89
2.00 2.11
2.22
2.36
2.49
2.62
2.78
3.11
3.50
3.94
4.44
5.00 5.56
6.22
7.00
7.89
8.89 10.00 11.11 12.44 13.89 15.56 17.78
1.32
1.39
1.47
1.58
1.68
1.79
1.89 2.00
2.11
2.23
2.36
2.48
2.63
2.95
3.32
3.74
4.21
4.74 5.26
5.89
6.63
7.47
8.42
9.47 10.53 11.79 13.16 14.74 16.84
1.25
1.32
1.40
1.50
1.60
1.70
1.80 1.90
2.00
2.12
2.24
2.36
2.50
2.80
3.15
3.55
4.00
4.50 5.00
5.60
6.30
7.10
8.00
9.00 10.00 11.20 12.50 14.00 16.00
1.18
1.25
1.32
1.42
1.51
1.60
1.70 1.79
1.89
2.00
2.11
2.23
2.36
2.64
2.97
3.35
3.77
4.25 4.72
5.28
5.94
6.70
7.55
8.49
9.43 10.57 11.79 13.21 15.09
1.12
1.18
1.25
1.34
1.43
1.52
1.61 1.70
1.79
1.89
2.00
2.11
2.23
2.50
2.81
3.17
3.57
4.02 4.46
5.00
5.63
6.34
7.14
8.04
8.93 10.00 11.16 12.50 14.29
1.06
1.12
1.19
1.27
1.36
1.44
1.53 1.61
1.69
1.80
1.90
2.00
2.12
2.37
2.67
3.01
3.39
3.81 4.24
4.75
5.34
6.02
6.78
7.63
8.47
9.49 10.59 11.86 13.56
1.00
1.06
1.12
1.20
1.28
1.36
1.44 1.52
1.60
1.70
1.79
1.89
2.00
2.24
2.52
2.84
3.20
3.60 4.00
4.48
5.04
5.68
6.40
7.20
8.00
8.96 10.00 11.20 12.8
1.00
1.06
1.14
1.21
1.29
1.36 1.44
1.52
1.61
1.70
1.79
1.89
2.12
2.39
2.69
3.03
3.41 3.79
4.24
4.77
5.38
6.06
6.82
7.58
8.48 9.47 10.61 12.12
1.00
1.07
1.14
1.21
1.29 1.36
1.43
1.51
1.60
1.69
1.79
2.00
2.25
2.54
2.86
3.21 3.57
4.00
4.50
5.07
5.71
6.43
7.14
8.00 8.93 10.00 11.43
1.00
1.07
1.13
1.20 1.27
1.33
1.41
1.49
1.57
1.67
1.87
2.10
2.37
2.67
3.00 3.33
3.73
4.20
4.73
5.33
6.00
6.67
7.47 8.33
9.33 10.67
1.00
1.06
1.13 1.19
1.25
1.33
1.40
1.48
1.56
1.75
1.97
2.22
2.50
2.81 3.13
3.50
3.94
4.44
5.00
5.63
6.25
7.00 7.81
8.75 10.00
1.00
1.06 1.12
1.18
1.25
1.32
1.39
1.47
1.65
1.85
2.09
2.35
2.65 2.94
3.29
3.71
4.18
4.71
5.29
5.88
6.59 7.35
8.24 9.41
1.00 1.06
1.11
1.18
1.24
1.31
1.39
1.56
1.75
1.97
2.22
2.50 2.78
3.11
3.50
3.94
4.44
5.00
5.56
6.22 6.94
7.78 8.89
1.00
1.05
1.12
1.18
1.24
1.32
1.47
1.66
1.87
2.11
2.37 2.63
2.95
3.32
3.74
4.21
4.74
5.26
5.89 6.58
7.37 8.42
1.00
1.06
1.12
1.18
1.25
1.40
1.58
1.78
2.00
2.25 2.50
2.80
3.15
3.55
4.00
4.50
5.00
5.60 6.25
7.00 8.00
1.00
1.06
1.11
1.18
1.32
1.49
1.67
1.89
2.12 2.36
2.64
2.97
3.35
3.77
4.25
4.72
5.28 5.90
6.60 7.55
1.00
1.05
1.12
1.25
1.41
1.58
1.79
2.01 2.23
2.50
2.81
3.17
3.57
4.02
4.46
5.00 5.58
6.25 7.14
1.00
1.06
1.19
1.33
1.50
1.69
1.91 2.12
2.37
2.67
3.01
3.39
3.81
4.24
4.75 5.30
5.93 6.78
1.00
1.12
1.26
1.42
1.60
1.80 2.00
2.24
2.52
2.84
3.20
3.60
4.00
4.48 5.00
5.60 6.40
1.00
1.13
1.27
1.43
1.61 1.79
2.00
2.25
2.54
2.86
3.21
3.57
4.00 4.46
5.00 5.71
1.00
1.13
1.27
1.43 1.59
1.78
2.00
2.25
2.54
2.86
3.17
3.56 3.97
4.44 5.08
1.00
1.13
1.27 1.41
1.58
1.77
2.00
2.25
2.54
2.82
3.15 3.52
3.94 4.51
1.00
1.13 1.25
1.40
1.58
1.78
2.00
2.25
2.50
2.80 3.13
3.50 4.00
1.00 1.11
1.24
1.40
1.58
1.78
2.00
2.22
2.49 2.78
3.11 3.56
1.00
1.12
1.26
1.42
1.60
1.80
2.00
2.24 2.50
2.80 3.20
1.00
1.13
1.27
1.43
1.61
1.79
2.00 2.23
2.50 2.86
1.00
1.13
1.27
1.43
1.59
1.78 1.98
2.22 2.54
1.00
1.13
1.27
1.41
1.58 1.76
1.97 2.25
1.00
1.13
1.25
1.40 1.56
1.75 2.00
1.00
1.11
1.24 1.39
1.56 1.78
1.00
1.12 1.25
1.40 1.60
1.00 1.12
1.25 1.43
1.00
1.12 1.28
1.00 1.14
1.00
1000
1120
1250
1400
1600
450
500
560
630
710
800
900
224
236
250
280
315
355
400
150
160
170
180
190
200
212
95
100
106
112
118
125
132
140
63
67
71
75
80
85
90
48
50
53
56
60
38
40
42
45
30
32
34
36
20
24
26
28
27
3
DRIVE DESIGN
3
STEP 4
DETERMINE THE SPEED RATIO
Formula No. 1:
Speed ratio =
RPM of faster shaft
RPM of slower shaft
Determine the desired SPEED RATIO by dividing the RPM of the faster shaft by the RPM of the slower shaft.
If you are replacing a chain or gear drive, the speed ratio is the number of teeth on the large sprocket or gear divided by the number of teeth on the small sprocket or gear. If you are replacing a flat belt drive, divide the larger pulley diameter by the smaller pulley diameter.
STEP 5
CHOOSE THE PULLEY DATUM
DIAMETER
You should use standard diameter pulleys for the drive in order to obtain the most economical drive.
Table No. 5 on page 28 shows the diameters of the available standard pulleys for each cross-section.
If a minimum or maximum diameter for one of the pulleys is known, or if you have one pulley on hand, start with that diameter. If you do not know the datum diameter of a pulley on hand, measure the outside diameter and groove width. Determine from the tables Nos. 15 to 18
(pages 38 to 40) if the pulley is of ISO, DIN or RMA dimension, referring to the column identified as “go”
(groove outside diameter). Then subtract or add the value shown in table No. 7 or 8 (page 29) to find the datum diameter.
STEP 6
CALCULATE THE BELT SPEED
A. Formula No. 2:
V = d x n
19100
Where: V = belt speed (m/s) d = datum diameter of one pulley (mm) n = RPM of that same pulley
B. Locate the small pulley datum diameter in the appropriate column of table No. 6 (page 26). Read across to the available speed ratio closest to the value calculated in step 4. Find the LARGE PULLEY DATUM
DIAMETER at the head of the column. You can also locate the datum diameter of a known large pulley and read down to the speed ratio, to find the datum diameter of the small pulley in the appropriate column at the left of the table. Pulleys with these datum diameters are generally available from stock. To be sure, check with your supplier. If necessary, use the next pulley combination giving the required speed ratio.
NOTE: speed ratios shown in table No. 6 are based on standard datum diameters. Speed ratios of actual drives may vary slightly due to drive tension, load and/or belt construction. If the driveN speed of your drive is critical, check with your Gates representative.
C. Most machines do not require exact driveN speeds to operate efficiently. Speeds vary because the speed of common driveR motors usually varies by several percent. The speed of an ordinary induction motor for example, varies with load and line voltage.
Because of the different standardisation systems not all cross-sections in table No. 5 are identified with their reference or datum diameter. For the cross-sections identified with effective length, the effective diameter is given (e.g. Micro-V ® , PowerBand ® , Polyflex ® JB™).
To find the exact speed ratio you have to correct these effective diameters by using the values given in the tables Nos. 7 and 8 (see page 29).
D. Belt speed should be kept reasonably high if possible
(20 to 30 m/s) by using larger pulley diameters. Higher belt speed results in higher power ratings and fewer belts, thus producing a more economical drive.
Higher belt speed also means lower operating tensions, thereby decreasing shaft and bearing loads.
High belt speed is less important on lightly loaded, normal speed drives, where the cost of larger diameter pulleys (to obtain high belt speed) may result in a less economical drive, or in the use of one belt which sacrifices multiple belt dependability. For heavy-duty drives, it is best to compare several design possibilities to make the most economical choice.
For belt speeds higher than 30 m/s dynamically balanced pulleys are required. If the belt speed is too high, choose smaller diameter pulleys (see step 6, C).
28
DRIVE DESIGN
Table No. 7 - Amount in mm to subtract from the outside diameter to find the datum diameter of a grooved V-belt pulley
A B C D FOR SPZ SPA SPB SPC 3V 5V 8V/25J 9J 15J Z
SECTION XPZ XPA XPB XPC 3VX 5VX 8VK
Subtract 4 5.5
7 9.6
1.3
2.5
5 1.2
2.6
5 6.6
8.4
11.4
16.2
Table No. 8 - Amount in mm to add to the outside diameter to find the datum diameter of a Micro-V ® or Polyflex ® JB™ pulley
FOR
SECTION
Add
PJ
2.5
PL
7
PM 5M-JB 7M-JB 11M-JB
10 1.3
2.3
3.6
STEP 7
SELECT CENTRE DISTANCE AND V-BELT LENGTH
There are practically no centre distance limits for Gates
V-belt drives. They are especially recommended for short centre distances, which means more economical drives and more compact designs. However, long centre distances can be used just as well if required.
A. If you do not know an approximate centre distance for the drive, a TENTATIVE CENTRE DISTANCE needs to be taken. To obtain a good estimate, use the large pulley diameter.
Alternatively the centre distance can be calculated by:
Formula No. 3:
D + 3d
TCD =
2
Where: TCD = tentative centre distance (mm)
D = datum diameter large pulley (mm) d = datum diameter small pulley (mm)
You can then find a tentative belt length by using the following formula:
Formula No. 4:
(D - d)
2
TBL = 2 x TCD + 1.57 (D + d) +
4 x TCD
Where: TBL = tentative belt length (mm)
B. Now select a STANDARD V-BELT LENGTH from the size listing on pages 9 to 20, closest to the length obtained by using formula No. 4. THE ACTUAL
CENTRE DISTANCE can then be calculated by using formula No. 5:
Formula No. 5:
A =
F - h (D - d)
2
Where: A = actual centre distance (mm)
F = PL - 1.57 (D + d) with PL = belt datum length (mm) h = a centre distance factor depending on the value of (D - d)/F.
See Table No. 9.
Table No. 9 - Centre distance factor “h”
D - d Factor D - d Factor D - d Factor
F h F h F h
0.00
0.02
0.04
0.06
0.08
0.10
0.12
0.14
0.16
0.18
0.20
0.00
0.01
0.02
0.03
0.04
0.05
0.06
0.07
0.08
0.09
0.10
0.21
0.23
0.25
0.27
0.29
0.30
0.32
0.34
0.35
0.37
0.39
0.11
0.12
0.13
0.14
0.15
0.16
0.17
0.18
0.19
0.20
0.21
0.40
0.41
0.43
0.44
0.46
0.47
0.48
0.50
0.51
0.22
0.23
0.24
0.25
0.26
0.27
0.28
0.29
0.30
C. Alternative method
The nomogram (table No. 10) allows you to calculate centre distance and belt length in a fast and efficient way and converts the nominal values to design values.
The centre distance and belt length calculated this way are approximate values and can only be used where centre distance corrections are still possible.
Two scales are given to enhance readability.
Make sure to use the corresponding colours.
Example:
Pulleys: DriveR = XPB-112
DriveN machine = XPB-236
Requested centre distance: 500 mm (black scale)
(d + D) = 112 + 236 = 348 (black scale)
Indicated length (continuous line) = approx. 1550 mm
Closest standard length = XPB-1500
Indicated centre distance (dotted line) = approx. 475 mm
29
3
3
DRIVE DESIGN
Table No. 10 - Centre distance and belt length
PULLEYS
(d+D)
100 200
200 400
300 600
400 800
500 1000
600 1200
700 1400
800 1600
BELT LENGTH
(mm)
CENTRE DISTANCE
(mm)
1800
2000
2200
2400
1000
1200
1400
1600
2600
2800
200
400
600
800
3000
3200
3400
3600
3800
4000
100
500 1000
200
300
1000
2000
400
500
1500
3000
600
2000
4000
700
800
2500 5000
900
1000
3000
6000
1100
1200
3500
7000
1300
1400
4000
8000
1500
4500
1600
9000
1700
5000
1800
10000
1900
2000
30
DRIVE DESIGN
STEP 8
DETERMINE THE NUMBER OF BELTS
OR RIBS REQUIRED
For the following design steps, fold out the back cover page and open the manual on the pages with the kW rating tables for the selected cross-section.
A. Determine the basic kilowatt rating “A” for your small pulley diameter and speed from the appropriate crosssection table A (pages 46 to 87).
G. Divide the design kilowatt by the net kilowatt per belt/rib to find the number of belts or ribs required for your drive.
Design kW
Number of belts or ribs =
Net kW per belt/rib
The answer will usually contain a fraction. Use the next larger whole number of belts or ribs.
NUMBER OF BELTS OR RIBS
BASIC kW RATING (A)
B. Then define the “additional kilowatt” for the speed ratio, from table B.
Before deciding upon this drive as your final design, see step 6, D for a drive review.
FINAL SELECTION
ADDITIONAL kW RATING FOR
SPEED RATIO (B)
3
C. Table C gives the additional kW rating per belt for the chosen service life. If 12000 hrs were chosen then no additional kW is added (C=0). For 25000 hrs or 6000 hrs apply the formula in table C under the number of hours chosen.
STEP 9
PROVIDE THE MINIMUM INSTALLATION
AND TAKEUP ALLOWANCES
ADDITIONAL kW RATING FOR BELT LIFE (C)
No value “C” is given for Micro-V ® and Polyflex ® JB™ belts. The calculated number of ribs only goes for a service life of 12000 hrs.
A. Find the recommended installation and takeup allowances from table No. 11.
Figure 1
Minimum decrease in centre distance required to install the belt
(installation allowance)
D. Calculate (D - d)/A and find the arc correction factor
G from table G (D and d are the large and small datum diameters and A is the centre distance in mm).
ARC CORRECTION FACTOR (G)
E. Then determine the belt length correction factor C
L from table C
L
for the chosen belt length.
BELT LENGTH CORRECTION FACTOR (C
L
)
Centre distance
Minimum increase in centre distance required to retension the belt
(takeup allowance)
B. If you cannot adjust the centre distance to install or takeup the belts, it is advisable to use an idler.
Separate instructions on the use of idlers are given on page 43.
F. Your net kW per belt or rib is found by following calculation:
(A + B + C) x G x C
L
NET kW PER BELT OR RIB
31
DRIVE DESIGN
Table No. 11 - Minimum installation and takeup allowances
V-belts
Minimum installation allowance - mm Datum length mm
3
420 - 1199
1200 - 1999
2000 - 2749
2750 - 3499
3500 - 4499
4500 - 5499
5500 - 6499
6500 - 7999
8000 -
* PB = PowerBand ®
XPZ XPA XPB XPC 8V 9J 15J 8V Z
3VX SPA 5VX SPC 8VK PB PB PB*
SPZ
3V
-
-
20
-
-
15
20
20
20
20
25
25
25
25
25
-
-
-
SPB
5V
-
25
25
25
25
25
35
35
35
-
-
35
35
35
35
40
40
45
V-belt section
25J
PB*
A A
PB
B B C C D
PB PB
SPB
PB
SPC
PB
-
-
30 -
35 55
-
-
15 20 30 25 35 40 50 -
20 20 30 30 40 40 50 50
40 35 55 85 20 25 35 30 40 40 50 50
40 35 55 85 25 35 30 40 40 50 50
40 35 55 85
45 55 90
45
45
50
-
-
-
60
60
60
90
90
100
-
-
-
-
-
25
25
25
-
-
35
35
35
-
-
30
40
40
40
-
40
50
50
50
50
50
50
50
50
50
60
60
60
60
60
55
60
60
65
65
Minimum takeup allowance mm
All sections
55
65
85
95
110
25
35
40
45
Micro-V ® belts
Effective length mm
up to 500
501 1000
1001 1500
1501 2000
2001 2500
2501 3000
3001 4000
4001 5000
5001 6000
6001 7500
7501 9000
9001 -
PJ
10
15
15
20
20
Minimum installation allowance - mm
Micro-V ® belt section
PL PM
25
25
30
30
35
50
55
65
70
40
40
45
45
Minimum takeup allowance mm
All sections
70
85
100
115
40
45
60
65
10
20
25
35
Polyflex ® JB™ belts
Effective length mm
280 -
307 -
300
710
730 1090
1120 1500
1550 1900
1950 2300
Minimum installation allowance - mm
Polyflex ® JB™ belt section
7M-JB 11M-JB 5M-JB
10
15
25
30
-
-
15
25
30
30
40
25
30
35
40
50
32
Minimum takeup allowance mm
All sections
5
15
30
35
35
45
TENSIONING
V-BELT TENSIONING METHOD
Although tension on a V-belt drive is usually not critical, it is certainly important. Undertensioning creates slippage, generating excessive heat. This results in premature belt failure. Overtensioning also results in short belt life and increases shaft loads. To tension the drives properly and to keep V-belt tension under control Gates developed a “Tension Deflection Method”.
Table No. 12 - Minimum static tension per strand for Polyflex ® JB™ belts
Section
5M-JB
7M-JB
11M-JB
Minimum static tension per strand
(N)
35
65
160
STEP 10
FIND THE REQUIRED STATIC TENSION
Determine tension per strand/rib or belt.
The static tension (T s
) is given by this formula:
Formula No. 6:
T s
= 475 x
(R - G)
G x
Drive Power kW
+ MV
2
N x V
Where: T s
= static tension (N) per strand/rib or belt
G = arc correction factor
(Table G from pages 47 to 87)
R = tension ratio factor: for V-belts and Polyflex for Micro-V ® belts: 2.67
N = number of belts or ribs
V = belt speed (m/s)
® JB™: 2.5;
M = constant from table No. 13
STEP 11
DETERMINE THE DEFLECTION FORCES
Determine the minimum and maximum recommended forces to deflect one belt (or one belt with different strands if PowerBand
®
, Micro-V
® or Polyflex
®
JB™ is used) for 1 mm per 100 mm of span length
A. The span length can be measured on the drive itself or from a scaled layout of the drive. For drives using only two pulleys, the span length can be calculated by this formula:
Formula No. 7:
t = A 1 - 0.125
(
D - d
A
)
2
Where: t = span length (mm)
A = centre distance (mm)
D = large pulley datum diameter (mm) d = small pulley datum diameter (mm)
Figure 2 - Tension measurement by deflection
Deflection force must always be directed perpendicular to the span.
Deflection = 1 mm per 100 mm of span.
Span length, t t
B. Calculate the deflection by following formula:
Formula No. 8:
Deflection = t
100
Where t = span length (mm) (see fig. 2)
D d
Deflection force*
* 10 N = 1.02 kg
IMPORTANT
Polyflex ® JB™ belts need minimum static tension per strand. If the calculated values are lower than the values given in table No. 12, do not use the calculated values, but the required minimum values given in table No. 12.
C. If your drive uses two or more individual belts,
Micro-V ® belts, Polyflex ® JB™ or PowerBand ® calculate the minimum and maximum recommended deflection forces by following formulas:
Formula No. 9:
Min. recommended deflection force (N) =
T s
+ Y
25
Formula No. 10:
Max. recommended deflection force (N) =
1.5 T s
+Y
25
4
Where Y = constant from Table No. 13
33
TENSIONING
4
D. If your drive has only one PowerBand ® ,
Polyflex ® JB™, individual belt or Micro-V ® belt, calculate the minimum and maximum recommended deflection forces by following formulas:
Formula No. 11:
Minimum recommended
T s t
( )
L deflection force (N) =
25
Formula No. 12:
Maximum recommended
1.5 T s
+ x Y
L deflection force (N) =
Where: L = datum length in mm t
( )
25
E. The deflection forces calculated in step 11, D are for individual belts only. Multiply these forces by the number of individual belts or ribs in a band to get the minimum and maximum recommended forces for a
PowerBand ® , Polyflex ® JB™ or Micro-V ® belt. (If your drive uses 2 or more PowerBand ® , Polyflex ® JB™ or
Micro-V
®
belts, use the band with the fewest number of individual belts).
Table No. 13 - Factor M and factor Y
Individual
V-belt and
Micro-V ® crosssection
Z
C
D
A
B
SPZ/3V
SPA
SPB/5V
M
0.05
0.09
0.14
0.26
0.52
0.066
0.12
0.17
Y
9
13
19
30
63
15
20
26
PowerBand ® and
Polyflex ® JB™ M crosssection
A
B
C
D
9J/3V
SPB
15J/5V
SPC
8V/25J
0.11
0.17
0.31
0.59
0.08
0.21
0.21
0.36
0.53
SPC
8V
SPZ*
SPA*
SPB*
SPC*
XPZ/3VX
XPA
XPB/5VX
XPC
PJ
PL
PM
5M
7M
11M
0.13
0.30
0.006
0.022
0.089
0.006
0.019
0.039
0.32
0.46
0.05
0.1
0.15
0.28
0.06
0.104
26
41
1
4.4
11
2.2
8.4
15.5
26
41
15
20
41
60
15
20
3VX
5VX
5M-JB
7M-JB
11M-JB
0.07
0.16
0.009
0.025
0.053
STEP 12
CHECK IF THE BELTS ARE PROPERLY
TENSIONED
A. Measure at the centre of the span (t) the force required to deflect the belt (or band of belts if PowerBand
®
,
Polyflex ® JB™ or Micro-V ® are used) on the drive
1 mm per 100 mm span length from its normal position. If your drive is a single belt drive, or uses only one PowerBand
®
, be sure that at least one pulley is free to rotate. If not, use formulas 11 and 12.
B. If the measured force is less than the minimum recommended deflection force, the belts should be tightened.
C. New belts can be tensioned until the deflection force per belt is as close as possible to the maximum recommended deflection force. For used belts a deflection force above minimum is acceptable.
D. To facilitate tension measuring Gates has developed three tension testers. The single tension tester measures deflection force up to
±
120 N, the double tension tester measures deflection force up to
±
300 N and the sonic tension meter measures all tension values by analysing sound waves. The first two tension testers consist of a calibrated spring with two scales: one to measure the deflection and another to measure the applied force (see figure on page 35).
The reading of these scales can be done as follows.
1. Measure the span length (t).
2. The calculated deflection (formula No. 8) should be positioned with the lower ring on the distance scale.
The upper ring should be on the zero position of the deflection force scale.
3. Put the tension tester perpendicular to the span and in the middle of the span. Exercise enough pressure to the tension tester to deflect the belt by the amount indicated by the lower ring. A straight edge, laid across pulleys, can help accuracy of reading.
4. The upper ring will slide up the upper scale and indicates the deflection force. Read at the bottom edge of the ring. When you use the double tension tester you can read the values just underneath the rings and calculate the sum of both values. This value has to be compared with the calculated min./max. forces as per formula Nos. 9 to 12.
* Moulded notch construction.
Note: for additional tensioning information on PowerBand ® , see pages 35 to 37.
34
TENSIONING
Single tension tester t
Sonic tension meter 505C
Deflection force scale
(read up)
Sliding rubber “O” rings
Tension
Tester
Pocket clip
Read just underneath the ring. Before using the tension tester again, slide the ring downwards again.
Double tension tester t
Rings
TENSION
TESTER
See printed folder for complete instructions for correct usage
Deflection distance scale
(read up)
Deflection force
(read up)
Deflection distance
(read up)
Rings
Read just underneath the rings. Before using the tension tester again, slide the rings downwards again.
Unlike conventional tension testers which use force deflection, the sonic tension meter measures tension by analysing the sound waves which the belt produces when strummed. A belt vibrates at a particular frequency based on its tension, mass and span length. The tension tester transforms this frequency in a tension value.
The hand-held tension tester, running on batteries or on the mains (adapter included), is supplied with two types of sensors (rigid and flexible), either of which is quickly attached to meet a specific need.
1. Enter belt unit weight (provided with operating instructions), width and span on the keypad. These data remain in the meter even after shut-off.
2. Hold the small sensor up to the belt span and strum the belt slightly to make it vibrate.
3. Press the “measure” button. The computer processes the variations in sound pressure emanating from the belt span. The belt tension values are displayed on the panel in newtons. If desired, the belt span frequencies can be displayed directly in Hz.
For more detailed information, e.g. suitability of the tension meter for different belt product lines, please contact your Gates representative.
For more details on the use of Gates’ sonic tension meter, please consult Gates’ sonic tension meter manual
(E2/20106).
Warning
Gates sonic tension meter 505C is not certified for use in
explosion risk areas.
4
POWERBAND
®
TENSIONING METHOD
When the cross-section and number of individual belts become so large that tensioning by deflection cannot reasonably be done, another method will be used.
This alternative method of checking PowerBand ® tension is the elongation method. The principle is simple. Each tension value corresponds with a given amount of elongation.
35
TENSIONING
4
T s
(N)
1000
1200
1400
1600
1800
2000
2250
2500
2750
3000
3250
3500
3750
4000
4250
4500
4750
5000
5250
5500
6000
550
600
650
700
750
800
900
300
350
400
450
500
Therefore the elongation of a PowerBand ® as it is installed and tensioned on a drive is a measure of the static tension in the belt.
Elongation method for tensioning PowerBand ® :
STEP I
DETERMINE THE REQUIRED
TENSION PER STRAND OF BELT
(STATIC TENSION)
A. Determine the required static tension per strand,
T s
, using formula No. 6 in step 10 of the regular V-belt tensioning method.
B. Determine the recommended minimum and maximum tension.
Minimum tension = T s
Maximum tension= 1.5 x T s
STEP II
DETERMINE THE AMOUNT TO
ELONGATE THE BELT (ON THE DRIVE)
TO OBTAIN THE ABOVE TENSION
A. Measure the outside circumference of the belt at no tension. This can be done with the belt either on or off the drive.
NOTE: if you are retensioning a used drive, slack off on the drive until there is no tension, then tape the outside circumference of the belt while it is still on the drive.
B. Determine the correct belt length multiplier from table
No. 14 for each of the static tensions you calculated above.
C. Multiply the taped outside circumference of the
PowerBand
®
by each of the length multipliers. This gives the elongated outside circumference of the
PowerBand ® corresponding to each of the calculated tensions.
Table No. 14 - Belt length multipliers for PowerBand
®
9J (3V) 15 J
(5V)
SPB
SPC 25J
(8V)
3VX 5VX 8VK A B C
< 3250 >3250 < 3250 >3250
D
1.00821
1.00957
1.01094
1.01231
1.01367
1.01915
1.02051
1.02188
1.02462
1.00532
1.00591
1.01504
1.00650
1.01641
1.00709
1.00481
1.01778
1.00769
1.00515
1.00828
1.00887
1.00946
1.01064
1.00549
1.00584
1.00618
1.00686
1.00449
1.00481
1.00513
1.00578
1.00613
1.00715
1.00817
1.00919
1.01021
1.00337
1.00374
1.01124
1.00412
1.01226
1.00449
1.01328
1.00487
1.01430
1.01532
1.01634
1.01839
1.00524
1.00561
1.00599
1.00674
1.00481
1.00535
1.00588
1.00642
1.00562
1.00674
1.00695
1.00608
1.00730
1.00749
1.00655
1.00786
1.00393
1.00524
1.00802
1.00702
1.00843
1.00421
1.00561
1.00856
1.00749
1.00899
1.00449
1.00599
1.00310
1.00963
1.00843
1.01011
1.00505
1.00674
1.00348
1.02735
1.01183
1.00754
1.00642
1.02043
1.00749
1.00132
1.01070
1.00936
1.01124
1.00562
1.00749
1.00387
1.01419
1.00891
1.00770
1.00899
1.00158
1.01284
1.01124
1.01348
1.00674
1.00899
1.00465
1.01656
1.01028
1.00899
1.01893
1.01164
1.01027
1.02129
1.01301
1.01156
1.02366
1.01438
1.01284
1.01049
1.01198
1.01348
1.01498
1.00185
1.00211
1.00237
1.00264
1.01498
1.01311
1.01498
1.01686
1.01873
1.01573
1.01798
1.02023
1.02248
1.00786
1.00899
1.01011
1.01124
1.01049
1.01198
1.01348
1.01498
1.00542
1.00620
1.00697
1.00775
1.02662
1.01608
1.01445
1.02957
1.01779
1.01605
1.01950
1.01766
1.02121
1.01926
1.02292
1.02087
1.01685
1.00297
1.01873
1.00330
1.00363
1.00396
1.00429
1.02107
1.02529
1.01264
1.01685
1.00872
1.02341
1.02810
1.01405
1.01873
1.00968
1.01545
1.02060
1.01065
1.01686
1.02247
1.01162
1.01826
1.02435
1.01259
1.02462
1.02247
1.02633
1.02408
1.02804
1.02569
1.02975
1.02729
1.03146
1.02890
1.03316
1.03050
1.03487
1.03211
1.03371
1.03532
1.03853
1.00462
1.00495
1.00528
1.00561
1.00594
1.00627
1.00660
1.00693
1.00727
1.00793
1.01967
1.02622
1.01356
1.02107
1.02809
1.01453
1.02248
1.02997
1.01550
1.02388
1.03184
1.01647
1.02529
1.03371
1.01744
1.02669
1.03559
1.01840
1.02810
1.03746
1.01937
1.02034
1.02131
1.02325
36
TENSIONING
STEP III
TENSION THE DRIVE
A. With the PowerBand ® installed on the drive, tighten it until the taped outside circumference corresponds to the elongated outside circumference range calculated above.
B. For new belts, tighten the belts as close as possible to the calculated maximum elongated outside length based on the maximum tension.
37
4
PULLEYS
1. GROOVE SPECIFICATIONS FOR V-BELT PULLEYS
Figure 3 - Groove dimension nomenclature for V-belts
α
go lp b d e f
5
Table No. 15 - Groove dimensions and tolerances for Hi-Power ® PowerBand ® according to
RMA engineering standards
Crosssection
A - PowerBand ®
B - PowerBand
®
C - PowerBand ®
D - PowerBand
®
Effective diam.
range mm
< 140
> 140
< 180
> 180
< 200
200 to 315
> 315
< 355
355 to 450
> 450
Groove angle a
34
° ±
1/2
°
38
° ±
1/2
°
34
° ±
1/2
°
38
° ±
1/2
°
34
° ±
1/2
°
36
° ±
1/2
°
38
° ±
1/2
°
34
° ±
1/2
°
36
° ±
1/2
°
38
° ±
1/2
°
* Summation of the deviations from “e” for all grooves in any pulley shall not exceed
±
1.2 mm.
go mm
12.55
±
0.13
12.80
±
0.13
16.18
±
0.13
16.51
±
0.13
22.33
±
0.18
22.53
±
0.18
22.73
±
0.18
31.98
±
0.18
32.28
±
0.18
32.59
±
0.18
d mm
12.45
±
0.79
12.45
±
0.79
14.73
±
0.79
14.73
±
0.79
19.81
±
0.79
19.81
±
0.79
19.81
±
0.79
26.67
±
0.79
26.67
±
0.79
26.67
±
0.79
e
* mm
15.88
±
0.60
15.88
±
0.60
19.05
±
0.60
19.05
±
0.60
25.40
±
0.60
25.40
±
0.60
25.40
±
0.60
36.53
±
0.60
36.53
±
0.60
36.53
±
0.60
f mm
9.53 (+1.78/-0)
9.53 (+1.78/-0)
12.70 (+3.80/-0)
12.70 (+3.80/-0)
17.48 (+3.80/-0)
17.48 (+3.80/-0)
17.48 (+3.80/-0)
22.23 (+6.35/-0)
22.23 (+6.35/-0)
22.23 (+6.35/-0)
38
PULLEYS
Table No. 16 - Groove dimensions and tolerances for Super HC
®
PowerBand
®
according to
ISO 5290 engineering standards
Section
9J
PowerBand
15J
PowerBand
25J
PowerBand
®
®
®
Effective diameter mm
< 90
90 to 150
151 to 300
> 300
< 250
250 to 400
> 400
< 400
400 to 560
> 560
Groove angle a
36
38
40
42
38
40
42
38
° ±
1/4
°
40
° ±
1/4
°
42
°
°
°
°
°
°
°
°
±
±
±
±
±
±
±
±
1/4
1/4
1/4
1/4
1/4
1/4
1/4
1/4
°
°
°
°
°
°
°
°
go mm
8.9
±
0.13
8.9
±
0.13
8.9
±
0.13
8.9
±
0.13
15.2
±
0.13
15.2
±
0.13
15.2
±
0.13
25.4
±
0.13
25.4
±
0.13
25.4
±
0.13
d mm
8.9 (+0.25/-0)
8.9 (+0.25/-0)
8.9 (+0.25/-0)
8.9 (+0.25/-0)
15.2 (+0.25/-0)
15.2 (+0.25/-0)
15.2 (+0.25/-0)
25.4 (+0.25/-0)
25.4 (+0.25/-0)
25.4 (+0.25/-0)
* Summation of the deviations from “e” for all grooves in any pulley shall not exceed
±
0.5 mm for 9J and 15J,
±
0.8 mm for 25J.
e
* mm
10.3
±
0.40
10.3
±
0.40
10.3
±
0.40
10.3
±
0.40
17.5
±
0.40
17.5
±
0.40
17.5
±
0.40
28.6
±
0.40
28.6
±
0.40
28.6
±
0.40
f mm
9 (+2.4/-0)
9 (+2.4/-0)
9 (+2.4/-0)
9 (+2.4/-0)
13 (+3.2/-0)
13 (+3.2/-0)
13 (+3.2/-0)
19 (+6.3/-0)
19 (+6.3/-0)
19 (+6.3/-0)
Table No. 17 - Groove dimensions and tolerances for Super HC
®
PowerBand
®
according to
RMA engineering standards
Section
3V/3VX and
PowerBand
5V/5VX and
PowerBand
8V/8VK and
®
®
PowerBand
®
Datum width mm
8.45
14.4
23.65
Effective diam. range mm
< 90
90 to 150
151 to 300
> 300
< 250
250 to 400
> 400
< 400
400 to 560
> 560
Groove
angle a
36
° ±
1/4
°
38
° ±
1/4
°
40
° ±
1/4
°
42
° ±
1/4
°
38
° ±
1/4
°
40
° ±
1/4
°
42
° ±
1/4
°
38
° ±
1/4
°
40
° ±
1/4
°
42
° ±
1/4
°
go mm
8.89
±
0.13
8.89
±
0.13
8.89
±
0.13
8.89
±
0.13
15.24
±
0.13
15.24
±
0.13
15.24
±
0.13
25.4
±
0.13
25.4
±
0.13
25.4
±
0.13
(minimum)
* Summation of the deviations from “e” for all grooves in any pulley shall not exceed
±
0.79 mm.
d mm
8.6
8.6
8.6
8.6
15.0
15.0
15.0
25.1
25.1
25.1
e
* mm f mm
10.32
±
0.40
8.73 (+2.4/-0)
10.32
±
0.40
8.73 (+2.4/-0)
10.32
±
0.40
8.73 (+2.4/-0)
10.32
±
0.40
8.73 (+2.4/-0)
17.46
±
0.40
12.7 (+3.2/-0)
17.46
±
0.40
12.7 (+3.2/-0)
17.46
±
0.40
12.7 (+3.2/-0)
28.58
±
0.40
19.05 (+6.3/-0)
28.58
±
0.40
19.05 (+6.3/-0)
28.58
±
0.40
19.05 (+6.3/-0)
b mm
0.65
0.65
0.65
0.65
1.25
1.25
1.25
2.54
2.54
2.54
Groove dimensions and tolerances for Super HC
®
PowerBand
®
according to the ISO 4183 engineering standards are shown in table No. 18 (SPB-PB/SPC-PB) on page 40.
5
39
PULLEYS
5
Table No. 18 - Groove dimensions and tolerances according to ISO 4183, DIN 2211 and
DIN 2217 engineering standards
Belt section
D** mm
E** mm
Z**
SPZ***
XPZ
A**
SPA***
XPA
B**
SPB***
SPB-PB
XPB
C**
SPC***
SPC-PB
XPC
Datum width
Ip mm
27
32
8.5
11
14
19
Datum diameter mm
355 to 500
> 500
500 to 630
> 630
63 to 80
> 80
90 to 118
> 118
140 to 190
> 190
224 to 315
> 315
Groove angle a
36
° ±
1/2
°
38
° ±
1/2
°
36
° ±
1/2
°
38
° ±
1/2
°
34
° ±
1
°
38
° ±
1
°
34
° ±
1
°
38
° ±
1
°
34
° ±
1
°
38
° ±
1
°
34
° ±
1/2
°
38
° ±
1/2
°
go mm
32
32
40
40
9.72
9.88
12.68
12.89
16.14
16.41
21.94
22.31
d
17.5 (+0.25/-0)
17.5 (+0.25/-0)
24 (+0.25/-0)
24 (+0.25/-0)
e mm
28 (min.)
28 (min.)
33 (min.)
33 (min.)
11 (+0.25/-0)
11 (+0.25/-0)
13.75 (+0.25/-0)
13.75 (+0.25/-0)
mm
37
±
0.60
37
±
0.60
44.5
±
0.70
44.5
±
0.70
12
±
0.30
12
±
0.30
15
±
0.30
15
±
0.30
19
±
0.40
19
±
0.40
25.5
±
0.50
25.5
±
0.50
f* mm
24 (
±
2)
24 (
±
2)
29 (
±
2)
29 (
±
2)
8
±
0.6
8
±
0.6
10
±
0.6
10
±
0.6
12.5
±
0.8
12.5
±
0.8
17
±
1.0
17
±
1.0
Tolerances on datum diameters can be calculated by applying the tolerance (+ 1.6 /- 0%) to the nominal value of the datum diameter in mm.
* These tolerances have to be taken into account when aligning the pulleys.
** According to DIN 2217.
*** According to DIN 2211 and ISO 4183.
Important
For PowerBands other than SPB-PB and SPC-PB, refer to tables 15 to 17 (pages 38 to 39).
mm
8.1
8.1
12
12
2
2
2.75
2.75
b
3.5
3.5
4.8
4.8
40
PULLEYS
2. GROOVE SPECIFICATIONS FOR MICRO-V
®
BELT PULLEYS
Figure 4 - Groove dimension nomenclature for Micro-V
®
belts
Y
Detail Y: Groove top
α
Ra
Ra
Z f e
Groove dimension
30
°
min.
The design of the groove top may not exceed indicated minimum and maximum values (depending on pulley manufacture).
Detail Z: Groove bottom
Ri
The groove bottom design may not exceed the indicated Ri value (depending on pulley manufacture).
Table No. 19 - Groove dimensions and tolerances for Micro-V ® according to DIN 7867 and
ISO 9982 engineering standards
Section Groove angle a e* mm
Ri Ra f mm mm mm max.
min.
min.
PJ
PL
PM
40
±
1/2
°
2.34
±
0.03
0.40
0.20
40
±
1/2
°
4.70
±
0.05
0.40
0.40
40
±
1/2
°
9.40
±
0.08
0.75
0.75
1.8
3.3
6.4
* Summation of the deviations from “e” for all grooves in any pulley shall not exceed
±
0.30 mm.
5
41
PULLEYS
3. GROOVE SPECIFICATIONS FOR POLYFLEX
®
JB™ BELT PULLEYS
Figure 5 - Groove dimension nomenclature for Polyflex
®
JB™ belts f e
90
° ±
1/2
°
α
go
Remove sharp burrs
D
K d** r
Datum diameter
Outside diameter
Bore axis
90
° ±
1/2
°
** Groove depth to bottom of straight-sidewall portion groove; i.e. tangent point of “d” and “r” dimensions.
Table No. 20 - Groove dimensions and tolerances for Polyflex
®
JB™
5
Groove Outside Groove angle designation diameter a
5M
7M
11M
26-32
33-97
> 97
42-76
> 76
67-117
> 117
60
°
(
±
1/4
°
)
62
°
(
±
1/4
°
)
64
°
(
±
1/4
°
)
60
°
(
±
1/4
°
)
62
°
(
±
1/4
°
)
60
°
(
±
1/4
°
)
62
°
(
±
1/4
°
)
go d** mm mm
4.50 (
±
0.05 mm)
4.50 (
±
0.05 mm)
4.50 (
±
0.05 mm)
7.10 (
±
0.05 mm)
3.28
3.15
3.05
5.28
7.10 (
±
0.05 mm) 5.08
11.20 (
±
0.05 mm) 8.51
11.20 (
±
0.05 mm) 8.20
e mm
5.30 (+0.13/-0.05)
5.30 (+0.13/-0.05)
5.30 (+0.13/-0.05)
8.50 (+0.13/-0.05)
8.50 (+0.13/-0.05)
13.20 (+0.13/-0.05)
13.20 (+0.13/-0.05)
f mm
3.45
3.45
3.45
5.65
5.65
8.60
8.60
r mm
0.4
0.4
0.4
0.6
0.6
0.8
0.8
2K mm
5.71
5.75
5.79
10.20
10.25
15.10
15.19
NOTES
1. The sides of the groove shall not exceed 3 micron (RMS) roughness.
2. The summation of the deviations from “e” for all grooves in any pulley shall not exceed
±
0.30 mm.
3. The tolerance on the outside diameter is:
0.13 mm for pulleys with 26 mm up through 125 mm outside diameter;
0.38 mm for pulleys with 126 mm up through 250 mm outside diameter;
0.76 mm for pulleys with 251 mm up through 500 mm outside diameter;
1.27 mm for pulleys with 501 mm outside diameter and more.
4. Radial run-out shall not exceed 0.13 mm TIR* for outside diameters up through 250 mm.
Add 0.01 mm TIR* per 25 mm of outside diameter more than 250 mm.
5. Axial run-out shall not exceed 0.03 mm TIR* per 25 mm of outside diameter for diameters up through 500 mm.
Add 0.01 mm TIR* per 25 mm of outside diameter for diameters more than 500 mm.
* TIR: Total Indicator Reading.
** Groove depth to bottom of straight-sidewall portion groove; i.e. tangent point of “d” and “r” dimensions.
D mm
4.50
4.50
4.50
7.50
7.50
11.50
11.50
42
IDLERS
IDLERS ON V-BELT DRIVES
An idler as used on V-belt drives, is a wheel that is not loaded and may be either a grooved or a flat pulley. Idlers are used on V-belt drives for various reasons:
1. To provide takeup for drives with fixed centre distance.
2. To clear obstructions.
3. To turn corners (as in mule pulley drives).
4. To break up long spans where belt vibration may be a problem.
5. To maintain tension.
6. To act as a clutching device.
Idlers always impose additional bending stresses on the belts. Therefore it is recommended to avoid idlers if possible. If needed at all in the drive, idler dimensions and locations should be designed for a minimum reduction of belt life.
PLACEMENT OF IDLERS ON THE DRIVE
Inside or outside idlers
Idlers may be placed either inside or outside the drive.
An inside idler decreases the arc of contact on the adjacent pulleys. Inside idlers can be either grooved or flat for Hi-Power
®
V-belts, but are always grooved for
Quad-Power II or Super HC
®
MN belts. Super HC
®
PowerBand ® however will run satisfactorily with flat inside idlers, because the tie band will keep the individual belts from tipping.
An outside idler increases the arc of contact but the amount of takeup is limited by the span on the opposite side. Outside idlers are always flat pulleys.
NOTE: the use of outside idlers is not recommended for
Polyflex
®
JB™ belt drives.
Figure 7 - Outside idler
Idler
DriveR
Tight or slack spans
Idlers should be placed, if at all possible, on the slack side of a drive, rather than on the tight side. Springloaded or weighted idlers should always be located on the slack side because the spring force, or weight, can be much less in this position. Also, such idlers should not be used on drives where the load can be reversed (i.e. where the slack side can become the tight side).
Figure 8 - Tight side idler
DriveR
Slack
Tight
DriveN
DriveN
Idler
Figure 6 - Inside idler
Figure 9 - Slack side idler
5
Idler
Slack
Idler
DriveN
Tight
DriveR
DriveN
DriveR
43
IDLERS
Location of the idler in the span
A grooved inside idler may be located at any point along the span, but preferably so that it results in nearly equal arcs of contact on the two adjacent pulleys.
Figure 10 - Equal arcs
FURTHER INFORMATION
Idler diameters
Inside idlers should be at least as large as the smallest power transmitting pulley. Outside idlers should be at least 50% larger than the smallest power transmitting pulley. Belt power ratings or belt life are reduced significantly when using idlers that are too small.
5
160
°
Arc of contact
Idler
160
°
Arc of contact
Belt length
A drive using an idler should be laid out to scale, the extreme installation and takeup positions established and the length measured in each position. Make sure that the belt you select allows sufficient installation and takeup.
A flat idler pulley, whether it is inside or outside should be located as far as is practical from the next pulley the belt is entering. This is because V-belts move back and forth slightly on a flat pulley, and locating it as far away from the next pulley minimises the possibility of the belt entering that pulley in a misaligned condition. The use of flat idler pulleys on long span drives can cause severe belt whip, and should be avoided if possible.
Figure 11 - Locating flat idler
Flat idler
Flat idlers
Flat idlers for V-belt drives should not be crowned.
Flanging of idlers, however, is good practice. If flanging is used, the inside bottom corners should not be rounded since this may cause the belt to climb off the pulley.
A general rule to determine the face width of a flat idler (between the flanges if flanged) is to add
1.5 times the nominal belt top width to the face width of the grooved pulley used.
Reduction of power rating
As stated above, the use of an idler (or several idlers) will have its effect on belt performance. So for equal belt life power rating should be reduced. If the above recommendations are used, it is possible to design satisfactory V-belt drives using idlers by multiplying the normal rating by the following factor:
Number of idlers
1
2
3
Multiplier
0.91
0.86
0.81
These factors are approximate. They apply only when idler diameters are in accordance with the above recommendations. If power rating is not reduced to account for an idler, belt life will be reduced. Belt life and power rating are much more reduced, when too small idlers are used, as the extra bending stress increases with decrease in diameter.
44
IDLERS
45
5
POWER RATINGS QUAD-POWER II
Basic kW per belt
QP
6
46
C
56 60 63 67 71 75 80 85 90 95 100 106 112 118 125 132 140
RPM of faster shaft
585 0.60
0.69
0.77
0.86
0.96
1.06
1.18
1.30
1.42
1.54
1.66
1.80
1.94
2.08
2.25
2.41
2.59
700 0.70
0.81
0.90
1.01
1.13
1.24
1.39
1.53
1.67
1.81
1.95
2.12
2.29
2.45
2.65
2.84
3.06
725 0.72
0.84
0.93
1.05
1.16
1.28
1.43
1.58
1.72
1.87
2.01
2.19
2.36
2.53
2.73
2.93
3.16
870 0.84
0.98
1.09
1.23
1.37
1.51
1.69
1.86
2.03
2.21
2.38
2.58
2.79
2.99
3.23
3.47
3.73
950 0.90
1.06
1.17
1.33
1.48
1.63
1.82
2.01
2.20
2.39
2.58
2.80
3.02
3.24
3.50
3.76
4.05
1160 1.07
1.26
1.40
1.58
1.77
1.95
2.18
2.41
2.63
2.86
3.08
3.35
3.62
3.89
4.20
4.50
4.85
1450 1.30
1.53
1.70
1.92
2.15
2.38
2.66
2.94
3.22
3.49
3.77
4.10
4.43
4.75
5.13
5.51
5.93
1750 1.52
1.79
1.99
2.27
2.54
2.80
3.14
3.47
3.80
4.13
4.46
4.85
5.23
5.62
6.07
6.51
7.01
2850 2.26
2.69
3.01
3.43
3.85
4.27
4.79
5.30
5.81
6.31
6.81
7.40
7.99
8.57
9.24
9.90 10.64
3450 2.63
3.14
3.52
4.02
4.51
5.00
5.61
6.21
6.81
7.40
7.98
8.67
9.35 10.02
10.78 11.53 12.37
100 0.13
0.14
0.16
0.18
0.19
0.21
0.24
0.26
0.28
0.30
0.33
0.35
0.38
0.41
0.44
0.47
0.50
200 0.23
0.27
0.29
0.33
0.37
0.40
0.44
0.49
0.53
0.58
0.62
0.67
0.72
0.77
0.83
0.89
0.96
300 0.33
0.38
0.42
0.48
0.53
0.58
0.64
0.71
0.77
0.83
0.90
0.97
1.05
1.13
1.21
1.30
1.40
400 0.43
0.50
0.55
0.62
0.68
0.75
0.84
0.92
1.00
1.09
1.17
1.27
1.37
1.47
1.58
1.70
1.83
500 0.52
0.60
0.67
0.75
0.84
0.92
1.02
1.13
1.23
1.33
1.43
1.56
1.68
1.80
1.94
2.08
2.24
600 0.61
0.71
0.78
0.88
0.98
1.08
1.21
1.33
1.45
1.57
1.70
1.84
1.99
2.13
2.30
2.47
2.66
700 0.70
0.81
0.90
1.01
1.13
1.24
1.39
1.53
1.67
1.81
1.95
2.12
2.29
2.45
2.65
2.84
3.06
800 0.78
0.91
1.01
1.14
1.27
1.40
1.56
1.72
1.88
2.04
2.20
2.39
2.58
2.77
2.99
3.21
3.46
900 0.86
1.01
1.12
1.27
1.41
1.56
1.74
1.92
2.10
2.27
2.45
2.66
2.88
3.09
3.33
3.57
3.85
1000 0.95
1.11
1.23
1.39
1.55
1.71
1.91
2.11
2.30
2.50
2.70
2.93
3.16
3.40
3.67
3.94
4.24
1100 1.03
1.20
1.34
1.51
1.69
1.86
2.08
2.30
2.51
2.73
2.94
3.20
3.45
3.70
4.00
4.29
4.62
1200 1.10
1.30
1.44
1.63
1.82
2.01
2.25
2.48
2.72
2.95
3.18
3.46
3.73
4.01
4.33
4.64
5.00
1300 1.18
1.39
1.54
1.75
1.95
2.16
2.41
2.67
2.92
3.17
3.42
3.72
4.01
4.31
4.65
4.99
5.38
1400 1.26
1.48
1.65
1.87
2.09
2.30
2.58
2.85
3.12
3.39
3.65
3.97
4.29
4.60
4.97
5.34
5.75
1500 1.33
1.57
1.75
1.98
2.22
2.45
2.74
3.03
3.32
3.60
3.89
4.22
4.56
4.90
5.29
5.68
6.12
1600
1700
1800
1900
1.41
1.48
1.55
1.62
1.66
1.75
1.83
1.92
1.85
1.95
2.04
2.14
2.10
2.21
2.32
2.43
2.35
2.47
2.60
2.72
2.59
2.73
2.87
3.01
2.90
3.06
3.22
3.37
3.21
3.38
3.56
3.73
A
3.51
3.70
3.90
4.09
3.81
4.02
4.23
4.44
4.12
4.34
4.57
4.79
4.48
4.72
4.97
5.21
4.83
5.10
5.37
5.63
5.19
5.48
5.76
6.04
5.60
5.91
6.22
6.52
6.01
6.34
6.67
7.00
6.48
6.84
7.19
7.54
2000 1.70
2.00
2.24
2.54
2.85
3.15
3.53
3.90
4.28
4.65
5.01
5.45
5.89
6.32
6.82
7.32
7.88
2100 1.77
2.09
2.33
2.65
2.97
3.29
3.68
4.07
4.46
4.85
5.23
5.69
6.15
6.60
7.12
7.64
8.22
2200 1.83
2.17
2.42
2.76
3.09
3.42
3.83
4.24
4.65
5.05
5.45
5.93
6.40
6.87
7.41
7.95
8.56
2300 1.90
2.25
2.52
2.86
3.21
3.56
3.98
4.41
4.83
5.25
5.67
6.16
6.65
7.14
7.70
8.26
8.89
2400 1.97
2.34
2.61
2.97
3.33
3.69
4.13
4.57
5.01
5.45
5.88
6.39
6.90
7.41
7.99
8.57
9.22
2500 2.04
2.42
2.70
3.07
3.45
3.82
4.28
4.74
5.19
5.64
6.09
6.62
7.15
7.67
8.27
8.87
9.54
2600 2.10
2.50
2.79
3.18
3.56
3.95
4.43
4.90
5.37
5.83
6.30
6.85
7.39
7.93
8.55
9.17
9.86
2700 2.17
2.57
2.88
3.28
3.68
4.08
4.57
5.06
5.54
6.03
6.50
7.07
7.63
8.19
8.83
9.46 10.18
2800 2.23
2.65
2.97
3.38
3.79
4.20
4.71
5.22
5.72
6.22
6.71
7.29
7.87
8.44
9.10
9.75 10.48
2900 2.30
2.73
3.05
3.48
3.91
4.33
4.86
5.38
5.89
6.40
6.91
7.51
8.11
8.69
9.37 10.04 10.79
3000 2.36
2.81
3.14
3.58
4.02
4.46
5.00
5.53
6.06
6.59
7.11
7.73
8.34
8.94
9.64 10.32 11.09
3100 2.42
2.88
3.22
3.68
4.13
4.58
5.14
5.69
6.23
6.77
7.31
7.94
8.57
9.19
9.90 10.60 11.38
3200 2.48
2.96
3.31
3.78
4.24
4.70
5.27
5.84
6.40
6.95
7.50
8.15
8.79
9.43
10.16 10.87 11.67
3300 2.54
3.03
3.39
3.87
4.35
4.82
5.41
5.99
6.56
7.13
7.70
8.36
9.02
9.67
10.41 11.14 11.95
3400 2.60
3.10
3.48
3.97
4.46
4.94
5.55
6.14
6.73
7.31
7.89
8.57
9.24
9.90
10.66 11.40 12.23
3500 2.66
3.18
3.56
4.06
4.57
5.06
5.68
6.29
6.89
7.49
8.07
8.77
9.46 10.13
10.90 11.66 12.51
3600 2.72
3.25
3.64
4.16
4.67
5.18
5.81
6.43
7.05
7.66
8.26
8.97
9.67 10.36
11.15 11.92 12.77
3700 2.78
3.32
3.72
4.25
4.78
5.30
5.94
6.58
7.21
7.83
8.44
9.17
9.88 10.58
11.38 12.16 13.03
3800 2.84
3.39
3.80
4.34
4.88
5.41
6.07
6.72
7.37
8.00
8.62
9.36 10.09 10.80
11.62 12.41 13.29
3900 2.89
3.46
3.88
4.43
4.98
5.53
6.20
6.86
7.52
8.17
8.80
9.56 10.29 11.02
11.84 12.65 13.54
4000 2.95
3.53
3.96
4.52
5.08
5.64
6.33
7.00
7.67
8.33
8.98
9.75 10.50 11.23
12.07 12.88 13.78
4200 3.06
3.66
4.11
4.70
5.28
5.86
6.58
7.28
7.97
8.65
9.32 10.11 10.89 11.64
12.50 13.34
14.25
4400 3.17
3.79
4.26
4.87
5.48
6.08
6.82
7.55
8.26
8.97
9.66 10.47 11.27 12.04
12.92
13.77 14.70
4600 3.27
3.92
4.40
5.04
5.67
6.29
7.06
7.81
8.55
9.27
9.98 10.82 11.63 12.42
13.32
14.18 15.12
4800 3.38
4.05
4.55
5.21
5.86
6.50
7.29
8.06
8.82
9.57 10.30 11.15 11.98 12.79
13.69 14.56
5000 3.47
4.17
4.69
5.37
6.04
6.70
7.51
8.31
9.09
9.85 10.60 11.47 12.32
13.13
14.05 14.92
5200 3.57
4.29
4.82
5.52
6.21
6.89
7.73
8.55
9.35 10.13 10.89 11.78
12.63 13.46
14.38
5400 3.67
4.41
4.95
5.67
6.38
7.08
7.94
8.78
9.59 10.39 11.17
12.07 12.94 13.77
5600 3.76
4.52
5.08
5.82
6.55
7.27
8.14
9.00
9.83 10.65
11.43 12.35 13.22 14.06
5800 3.85
4.63
5.21
5.97
6.71
7.45
8.34
9.22 10.06
10.89 11.69 12.61 13.49
6000 3.93
4.73
5.33
6.11
6.87
7.62
8.53
9.42
10.29 11.12 11.93 12.86
For speeds over 30 m/s we recommend that pulleys be dynamically balanced.
Additional kW per belt for belt life
6000 Hrs
d x RPM
600601
25000 Hrs
d x RPM
567215
12000 Hrs
0
XPZ-3VX
POWER RATINGS QUAD-POWER II
Additional kW per belt for speed ratio Arc of contact correction factor G
RPM of faster shaft
1 1.02
1.04
1.06
1.09
1.12
1.16
1.21
1.29 >1.44
to to to to to to to to to
1.01
1.03
1.05
1.08
1.11
1.15
1.2
1.28
1.44
585 0.00
0.01
0.01
0.02
0.03
0.04
0.04
0.05
0.06
0.07
700 0.00
0.01
0.02
0.03
0.04
0.04
0.05
0.06
0.07
0.08
725 0.00
0.01
0.02
0.03
0.04
0.05
0.06
0.06
0.07
0.08
870 0.00
0.01
0.02
0.03
0.04
0.06
0.07
0.08
0.09
0.10
950 0.00
0.01
0.02
0.04
0.05
0.06
0.07
0.09
0.10
0.11
1160 0.00
0.01
0.03
0.04
0.06
0.07
0.09
0.10
0.12
0.13
1450 0.00
0.02
0.04
0.06
0.07
0.09
0.11
0.13
0.15
0.17
1750 0.00
0.02
0.04
0.07
0.09
0.11
0.13
0.16
0.18
0.20
2850 0.00
0.04
0.07
0.11
0.15
0.18
0.22
0.26
0.29
0.33
3450 0.00
0.04
0.09
0.13
0.18
0.22
0.26
0.31
0.35
0.40
100 0.00
0.00
0.00
0.00
0.01
0.01
0.01
0.01
0.01
0.01
200 0.00
0.00
0.01
0.01
0.01
0.01
0.02
0.02
0.02
0.02
300 0.00
0.00
0.01
0.01
0.02
0.02
0.02
0.03
0.03
0.03
400 0.00
0.01
0.01
0.02
0.02
0.03
0.03
0.04
0.04
0.05
500 0.00
0.01
0.01
0.02
0.03
0.03
0.04
0.04
0.05
0.06
600 0.00
0.01
0.02
0.02
0.03
0.04
0.05
0.05
0.06
0.07
700 0.00
0.01
0.02
0.03
0.04
0.04
0.05
0.06
0.07
0.08
800 0.00
0.01
0.02
0.03
0.04
0.05
0.06
0.07
0.08
0.09
900 0.00
0.01
0.02
0.03
0.05
0.06
0.07
0.08
0.09
0.10
1000 0.00
0.01
0.03
0.04
0.05
0.06
0.08
0.09
0.10
0.12
1100 0.00
0.01
0.03
0.04
0.06
0.07
0.08
0.10
0.11
0.13
1200 0.00
0.02
0.03
0.05
0.06
0.08
0.09
0.11
0.12
0.14
1300
1400
1500
1600
0.00
0.00
0.00
0.00
0.02
0.02
0.02
0.02
0.03
0.04
0.04
0.04
0.05
0.05
0.06
0.06
B
0.07
0.07
0.08
0.08
0.08
0.09
0.10
0.10
0.10
0.11
0.12
0.12
0.12
0.13
0.13
0.14
0.13
0.14
0.15
0.16
0.15
0.16
0.17
0.18
1700 0.00
0.02
0.04
0.07
0.09
0.11
0.13
0.15
0.17
0.20
1800 0.00
0.02
0.05
0.07
0.09
0.12
0.14
0.16
0.18
0.21
1900 0.00
0.02
0.05
0.07
0.10
0.12
0.15
0.17
0.19
0.22
2000 0.00
0.03
0.05
0.08
0.10
0.13
0.15
0.18
0.20
0.23
2100 0.00
0.03
0.05
0.08
0.11
0.13
0.16
0.19
0.22
0.24
2200 0.00
0.03
0.06
0.08
0.11
0.14
0.17
0.20
0.23
0.25
2300 0.00
0.03
0.06
0.09
0.12
0.15
0.18
0.21
0.24
0.27
2400 0.00
0.03
0.06
0.09
0.12
0.15
0.18
0.21
0.25
0.28
2500 0.00
0.03
0.06
0.10
0.13
0.16
0.19
0.22
0.26
0.29
2600 0.00
0.03
0.07
0.10
0.13
0.17
0.20
0.23
0.27
0.30
2700 0.00
0.03
0.07
0.10
0.14
0.17
0.21
0.24
0.28
0.31
2800 0.00
0.04
0.07
0.11
0.14
0.18
0.21
0.25
0.29
0.32
2900 0.00
0.04
0.07
0.11
0.15
0.19
0.22
0.26
0.30
0.33
3000 0.00
0.04
0.08
0.12
0.15
0.19
0.23
0.27
0.31
0.35
3100 0.00
0.04
0.08
0.12
0.16
0.20
0.24
0.28
0.32
0.36
3200 0.00
0.04
0.08
0.12
0.16
0.20
0.25
0.29
0.33
0.37
3300 0.00
0.04
0.08
0.13
0.17
0.21
0.25
0.30
0.34
0.38
3400 0.00
0.04
0.09
0.13
0.17
0.22
0.26
0.30
0.35
0.39
3500 0.00
0.04
0.09
0.13
0.18
0.22
0.27
0.31
0.36
0.40
3600 0.00
0.05
0.09
0.14
0.18
0.23
0.28
0.32
0.37
0.41
3700 0.00
0.05
0.09
0.14
0.19
0.24
0.28
0.33
0.38
0.43
3800 0.00
0.05
0.10
0.15
0.19
0.24
0.29
0.34
0.39
0.44
3900 0.00
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.40
0.45
4000 0.00
0.05
0.10
0.15
0.20
0.26
0.31
0.36
0.41
0.46
4200 0.00
0.05
0.11
0.16
0.22
0.27
0.32
0.38
0.43
0.48
4400 0.00
0.06
0.11
0.17
0.23
0.28
0.34
0.39
0.45
0.51
4600 0.00
0.06
0.12
0.18
0.24
0.29
0.35
0.41
0.47
0.53
4800 0.00
0.06
0.12
0.18
0.25
0.31
0.37
0.43
0.49
0.55
5000 0.00
0.06
0.13
0.19
0.26
0.32
0.38
0.45
0.51
0.58
5200 0.00
0.07
0.13
0.20
0.27
0.33
0.40
0.47
0.53
0.60
5400 0.00
0.07
0.14
0.21
0.28
0.35
0.41
0.48
0.55
0.62
5600 0.00
0.07
0.14
0.21
0.29
0.36
0.43
0.50
0.57
0.65
5800 0.00
0.07
0.15
0.22
0.30
0.37
0.45
0.52
0.59
0.67
6000 0.00
0.08
0.15
0.23
0.31
0.38
0.46
0.54
0.61
0.69
D - d
A
Arc of contact on small pulley
(degrees)
0.00
0.10
180
174
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.00
1.10
1.20
1.30
1.40
1.50
169
163
157
151
145
139
G
113
106
99
91
83
0.91
0.89
0.87
0.85
0.82
0.80
0.77
0.73
0.70
0.65
1.00
0.99
0.97
0.96
0.94
0.93
Factor G
Belt length correction factor C
L
Belt ref.
Belt ref.
ISO Corr.
datum factor length C
L mm
XPZ-630
XPZ-670
XPZ-710
630 0.83 3VX-250
670 0.84 3VX-265
710 0.85 3VX-280
XPZ-750
XPZ-800
XPZ-850
750 0.86 3VX-300
800 0.87 3VX-315
850 0.88 3VX-335
XPZ-950
XPZ-900
C
900 0.89 3VX-355
950 0.90 3VX-375
XPZ-1000 1000 0.91 3VX-400 1015 0.92
XPZ-1060 1060 0.92 3VX-425 1080 0.93
XPZ-1120 1120 0.93 3VX-450 1145 0.94
XPZ-1180 1180 0.94 3VX-475 1205 0.95
XPZ-1250 1250 0.95 3VX-500 1270 0.96
XPZ-1320 1320 0.96 3VX-530 1345 0.97
XPZ-1400 1400 0.98 3VX-560 1420 0.98
XPZ-1500 1500 0.99 3VX-600 1525 0.99
XPZ-1600 1600 1.00 3VX-630 1600 1.00
XPZ-1700 1700 1.01 3VX-670 1700 1.01
XPZ-1800 1800 1.02 3VX-710 1805 1.02
XPZ-1900
XPZ-2000
1900 1.03 3VX-750
2000 1.04 3VX-800
L
1905 1.03
2030 1.04
XPZ-2120 2120 1.05 3VX-850 2160 1.05
XPZ-2240 2240 1.06 3VX-900 2285 1.07
XPZ-2360 2360 1.07 3VX-950 2415 1.08
XPZ-2500 2500 1.08 3VX-1000 2540 1.08
900 0.89
955 0.91
XPZ-2650 2650 1.09 3VX-1060 2690 1.09
XPZ-2800 2800 1.10 3VX-1120 2845 1.11
760 0.86
800 0.87
850 0.88
635 0.83
675 0.84
710 0.85
XPZ-3000 3000 1.11 3VX-1180 2995 1.11
XPZ-3150 3150 1.12 3VX-1250 3175 1.13
XPZ-3350 3350 1.13 3VX-1320 3355 1.14
XPZ-3550 3550 1.15 3VX-1400 3555 1.15
RMA Corr.
eff.
factor length C
L mm
QP
6
Number of belts required =
Design kW
(A + B + C) x G x C
L
47
POWER RATINGS QUAD-POWER II
Basic kW per belt
QP
6
48
C
80 85 90 95 100 106 112 118 125 132 140 150 160 170 180 190 200
RPM of faster shaft
585 1.44
1.64
1.84
2.04
2.24
2.48
2.72
2.96
3.24
3.51
3.83
4.22
4.61
4.99
5.38
5.76
6.15
700 1.68
1.92
2.16
2.40
2.63
2.92
3.20
3.48
3.81
4.13
4.51
4.97
5.43
5.88
6.34
6.79
7.24
725 1.73
1.98
2.23
2.47
2.72
3.01
3.30
3.59
3.93
4.27
4.65
5.13
5.60
6.08
6.55
7.01
7.48
870 2.03
2.32
2.61
2.91
3.20
3.54
3.89
4.23
4.63
5.03
5.49
6.05
6.61
7.17
7.73
8.28
8.83
950 2.19
2.51
2.82
3.14
3.46
3.83
4.21
4.58
5.02
5.45
5.94
6.55
7.16
7.77
8.37
8.97
9.56
1160 2.59
2.98
3.36
3.74
4.12
4.57
5.03
5.48
6.00
6.52
7.11
7.84
8.57
9.29
10.01 10.73 11.44
1450 3.13
3.60
4.07
4.54
5.01
5.57
6.12
6.67
7.31
7.94
8.67
9.56 10.45 11.33
12.21 13.07 13.93
1750 3.67
4.23
4.79
5.34
5.89
6.55
7.21
7.86
8.62
9.37 10.22 11.27 12.32 13.35
14.37 15.38 16.38
2850 5.44
6.30
7.16
8.02
8.87
9.87 10.87 11.85 12.99 14.11 15.37 16.92 18.44 19.92
21.36 22.77 24.14
3450 6.29
7.31
8.32
9.32 10.31 11.48 12.63 13.77 15.08 16.36 17.80 19.54 21.23
22.87
24.44 25.95
100 0.30
0.34
0.38
0.42
0.45
0.50
0.54
0.59
0.64
0.69
0.75
0.83
0.90
0.97
1.05
1.12
1.19
200 0.56
0.63
0.71
0.78
0.85
0.94
1.03
1.11
1.21
1.32
1.43
1.57
1.71
1.86
2.00
2.14
2.28
300 0.80
0.91
1.02
1.12
1.23
1.36
1.49
1.61
1.76
1.91
2.08
2.29
2.49
2.70
2.91
3.11
3.32
400 1.03
1.17
1.32
1.46
1.60
1.76
1.93
2.10
2.29
2.48
2.70
2.98
3.25
3.52
3.79
4.06
4.33
500 1.26
1.43
1.60
1.78
1.95
2.16
2.36
2.57
2.81
3.05
3.32
3.65
3.99
4.32
4.66
4.99
5.32
600 1.47
1.68
1.88
2.09
2.30
2.54
2.79
3.03
3.31
3.59
3.92
4.32
4.71
5.11
5.51
5.90
6.29
700 1.68
1.92
2.16
2.40
2.63
2.92
3.20
3.48
3.81
4.13
4.51
4.97
5.43
5.88
6.34
6.79
7.24
800 1.89
2.16
2.43
2.70
2.97
3.29
3.61
3.93
4.30
4.67
5.09
5.61
6.13
6.65
7.16
7.67
8.18
900 2.09
2.39
2.69
2.99
3.29
3.65
4.01
4.36
4.78
5.19
5.66
6.24
6.82
7.39
7.97
8.54
9.10
1000 2.29
2.62
2.95
3.29
3.62
4.01
4.40
4.80
5.25
5.71
6.22
6.86
7.50
8.13
8.76
9.39 10.01
1100 2.48
2.84
3.21
3.57
3.93
4.36
4.79
5.22
5.72
6.21
6.78
7.48
8.17
8.86
9.55 10.23 10.91
1200 2.67
3.07
3.46
3.85
4.25
4.71
5.18
5.64
6.18
6.72
7.33
8.08
8.83
9.58
10.32 11.06 11.79
1300 2.86
3.28
3.71
4.13
4.55
5.06
5.56
6.06
6.64
7.21
7.87
8.68
9.49 10.29
11.08 11.87 12.66
1400 3.04
3.50
3.95
4.41
4.86
5.40
5.93
6.47
7.09
7.70
8.40
9.27 10.13 10.99
11.83 12.68 13.51
1500 3.22
3.71
4.20
4.68
5.16
5.73
6.30
6.87
7.53
8.19
8.93
9.85 10.77 11.67
12.57 13.47 14.35
1600
1700
1800
1900
3.40
3.58
3.75
3.92
3.92
4.12
4.33
4.53
4.43
4.67
4.90
5.13
4.95
5.21
5.47
5.73
5.46
5.75
6.04
6.32
6.06
6.39
6.71
7.03
6.67
7.03
7.39
7.74
7.27
7.67
8.06
8.44
A
7.97
8.40
8.83
8.66
9.13
9.45 10.43 11.39 12.35
9.96 10.99 12.01 13.02
9.60 10.47 11.55 12.62 13.68
9.25 10.06 10.97 12.10 13.22 14.33
13.30 14.24 15.17
14.02 15.01 15.98
14.72 15.76 16.78
15.42 16.50 17.56
2000 4.09
4.73
5.36
5.98
6.61
7.35
8.09
8.82
9.67 10.51 11.47 12.65 13.81 14.96
16.10 17.22 18.33
2100 4.26
4.92
5.58
6.23
6.88
7.66
8.43
9.20 10.08 10.96 11.95 13.18 14.39 15.59
16.77 17.93 19.07
2200 4.42
5.11
5.80
6.48
7.16
7.97
8.77
9.57 10.49 11.40 12.43 13.71 14.96 16.20
17.42 18.63 19.81
2300 4.58
5.30
6.02
6.73
7.43
8.27
9.10
9.93 10.89 11.83 12.90 14.23 15.53 16.81
18.07 19.31 20.52
2400 4.74
5.49
6.23
6.97
7.70
8.57
9.44 10.29 11.28 12.26 13.37 14.74 16.08 17.40
18.70 19.97 21.22
2500 4.90
5.68
6.44
7.21
7.97
8.87
9.76 10.65 11.67 12.69 13.83 15.24 16.62 17.98
19.31 20.62 21.90
2600 5.06
5.86
6.65
7.44
8.23
9.16 10.08 11.00 12.06 13.10 14.28 15.73 17.15 18.55
19.92 21.26 22.56
2700 5.21
6.04
6.86
7.68
8.49
9.45 10.40 11.35 12.43 13.51 14.72 16.21 17.68 19.11
20.51 21.87 23.21
2800 5.36
6.22
7.06
7.91
8.74
9.73 10.71 11.69 12.81 13.91 15.16 16.69 18.19 19.65
21.08 22.47 23.83
2900 5.51
6.39
7.26
8.13
8.99 10.01 11.02 12.02 13.17 14.31 15.59 17.15 18.69 20.18
21.64 23.06
24.44
3000 5.66
6.56
7.46
8.35
9.24 10.29 11.33 12.35 13.53 14.70 16.01 17.61 19.18 20.70
22.18 23.63
25.02
3100 5.80
6.73
7.66
8.57
9.48 10.56 11.63 12.68 13.89 15.08 16.42 18.06 19.65 21.21
22.71
24.17 25.59
3200 5.94
6.90
7.85
8.79
9.72 10.83 11.92 13.00 14.24 15.46 16.82 18.49 20.12 21.70
23.23 24.70 26.13
3300 6.08
7.07
8.04
9.00
9.96 11.09 12.21 13.31 14.58 15.82 17.22 18.92 20.57 22.18
23.72 25.22 26.65
3400 6.22
7.23
8.23
9.21 10.19 11.35 12.49 13.62 14.91 16.18 17.61 19.34 21.02
22.64
24.20 25.71
3500 6.35
7.39
8.41
9.42 10.42 11.61 12.77 13.92 15.24 16.54 17.98 19.74 21.45
23.09
24.67 26.18
3600 6.49
7.54
8.59
9.62 10.65 11.86 13.05 14.22 15.57 16.88 18.35 20.14
21.86 23.52
25.11
3700 6.62
7.70
8.77
9.83 10.87 12.10 13.32 14.51 15.88 17.22 18.72 20.53
22.27 23.94
25.54
3800 6.75
7.85
8.94 10.02 11.09 12.35 13.58 14.80 16.19 17.55 19.07 20.90
22.66 24.34
3900 6.87
8.00
9.12 10.22 11.30 12.58 13.84 15.08 16.49 17.87 19.41
21.26 23.04 24.73
4000 7.00
8.15
9.28 10.40 11.51 12.82 14.10 15.35 16.79 18.19 19.74
21.61 23.40
4200 7.24
8.43
9.61 10.77 11.92 13.27 14.59 15.88 17.36 18.79
20.38 22.28
4400 7.47
8.71
9.93 11.13 12.31 13.70 15.06 16.39 17.90
19.36 20.98 22.90
4600 7.69
8.97 10.23 11.47 12.68 14.11 15.51 16.87
18.41 19.90 21.53
4800 7.90
9.22 10.52 11.79 13.04 14.51 15.93 17.32
18.89 20.40
5000 8.10
9.46 10.80 12.10 13.38 14.88 16.33
17.75 19.33 20.86
5200 8.29
9.69 11.06 12.40 13.70 15.23
16.71 18.14 19.75
5400 8.48
9.91 11.31 12.67 14.01
15.56 17.06 18.51
5600 8.65 10.11 11.54 12.93 14.29
15.87 17.39 18.85
5800 8.80 10.30 11.76 13.18
14.55 16.15 17.69
6000 8.95 10.48 11.96 13.40
14.80 16.41
For speeds over 30 m/s we recommend that pulleys be dynamically balanced.
Additional kW per belt for belt life
6000 Hrs
d x RPM
362319
25000 Hrs
d x RPM
343643
12000 Hrs
0
XPA
POWER RATINGS QUAD-POWER II
Additional kW per belt for speed ratio Arc of contact correction factor G
RPM of faster shaft
1 1.02
1.04
1.06
1.09
1.12
1.16
1.21
1.29 >1.44
to to to to to to to to to
1.01
1.03
1.05
1.08
1.11
1.15
1.2
1.28
1.44
585 0.00
0.02
0.03
0.05
0.07
0.09
0.10
0.12
0.14
0.16
700 0.00
0.02
0.04
0.06
0.08
0.10
0.12
0.15
0.17
0.19
725 0.00
0.02
0.04
0.06
0.09
0.11
0.13
0.15
0.17
0.19
870 0.00
0.03
0.05
0.08
0.10
0.13
0.15
0.18
0.21
0.23
950 0.00
0.03
0.06
0.08
0.11
0.14
0.17
0.20
0.23
0.25
1160 0.00
0.03
0.07
0.10
0.14
0.17
0.21
0.24
0.28
0.31
1450 0.00
0.04
0.09
0.13
0.17
0.22
0.26
0.30
0.34
0.39
1750 0.00
0.05
0.10
0.16
0.21
0.26
0.31
0.36
0.42
0.47
2850 0.00
0.08
0.17
0.25
0.34
0.42
0.51
0.59
0.68
0.76
3450 0.00
0.10
0.20
0.31
0.41
0.51
0.61
0.72
0.82
0.92
100 0.00
0.00
0.01
0.01
0.01
0.01
0.02
0.02
0.02
0.03
200 0.00
0.01
0.01
0.02
0.02
0.03
0.04
0.04
0.05
0.05
300 0.00
0.01
0.02
0.03
0.04
0.04
0.05
0.06
0.07
0.08
400 0.00
0.01
0.02
0.04
0.05
0.06
0.07
0.08
0.09
0.11
500 0.00
0.01
0.03
0.04
0.06
0.07
0.09
0.10
0.12
0.13
600 0.00
0.02
0.04
0.05
0.07
0.09
0.11
0.12
0.14
0.16
700 0.00
0.02
0.04
0.06
0.08
0.10
0.12
0.15
0.17
0.19
800 0.00
0.02
0.05
0.07
0.09
0.12
0.14
0.17
0.19
0.21
900 0.00
0.03
0.05
0.08
0.11
0.13
0.16
0.19
0.21
0.24
1000 0.00
0.03
0.06
0.09
0.12
0.15
0.18
0.21
0.24
0.27
1100 0.00
0.03
0.07
0.10
0.13
0.16
0.20
0.23
0.26
0.29
1200 0.00
0.04
0.07
0.11
0.14
0.18
0.21
0.25
0.28
0.32
1300
1400
1500
1600
0.00
0.00
0.00
0.00
0.04
0.04
0.04
0.05
0.08
0.08
0.09
0.09
0.12
0.12
0.13
0.14
B
0.15
0.17
0.18
0.19
0.19
0.21
0.22
0.24
0.23
0.25
0.27
0.28
0.27
0.29
0.31
0.33
0.31
0.33
0.36
0.38
0.35
0.37
0.40
0.43
1700 0.00
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.40
0.45
1800 0.00
0.05
0.11
0.16
0.21
0.27
0.32
0.37
0.43
0.48
1900 0.00
0.06
0.11
0.17
0.23
0.28
0.34
0.39
0.45
0.51
2000 0.00
0.06
0.12
0.18
0.24
0.30
0.36
0.42
0.47
0.53
2100 0.00
0.06
0.12
0.19
0.25
0.31
0.37
0.44
0.50
0.56
2200 0.00
0.07
0.13
0.20
0.26
0.33
0.39
0.46
0.52
0.59
2300 0.00
0.07
0.14
0.20
0.27
0.34
0.41
0.48
0.55
0.61
2400 0.00
0.07
0.14
0.21
0.28
0.36
0.43
0.50
0.57
0.64
2500 0.00
0.07
0.15
0.22
0.30
0.37
0.44
0.52
0.59
0.67
2600 0.00
0.08
0.15
0.23
0.31
0.39
0.46
0.54
0.62
0.69
2700 0.00
0.08
0.16
0.24
0.32
0.40
0.48
0.56
0.64
0.72
2800 0.00
0.08
0.17
0.25
0.33
0.42
0.50
0.58
0.66
0.75
2900 0.00
0.09
0.17
0.26
0.34
0.43
0.52
0.60
0.69
0.77
3000 0.00
0.09
0.18
0.27
0.36
0.44
0.53
0.62
0.71
0.80
3100 0.00
0.09
0.18
0.28
0.37
0.46
0.55
0.64
0.74
0.83
3200 0.00
0.10
0.19
0.28
0.38
0.47
0.57
0.66
0.76
0.86
3300 0.00
0.10
0.20
0.29
0.39
0.49
0.59
0.69
0.78
0.88
3400 0.00
0.10
0.20
0.30
0.40
0.50
0.61
0.71
0.81
0.91
3500 0.00
0.10
0.21
0.31
0.42
0.52
0.62
0.73
0.83
0.94
3600 0.00
0.11
0.21
0.32
0.43
0.53
0.64
0.75
0.85
0.96
3700 0.00
0.11
0.22
0.33
0.44
0.55
0.66
0.77
0.88
0.99
3800 0.00
0.11
0.23
0.34
0.45
0.56
0.68
0.79
0.90
1.02
3900 0.00
0.12
0.23
0.35
0.46
0.58
0.69
0.81
0.93
1.04
4000 0.00
0.12
0.24
0.36
0.47
0.59
0.71
0.83
0.95
1.07
4200 0.00
0.12
0.25
0.37
0.50
0.62
0.75
0.87
1.00
1.12
4400 0.00
0.13
0.26
0.39
0.52
0.65
0.78
0.91
1.04
1.18
4600 0.00
0.14
0.27
0.41
0.55
0.68
0.82
0.96
1.09
1.23
4800 0.00
0.14
0.28
0.43
0.57
0.71
0.85
1.00
1.14
1.28
5000 0.00
0.15
0.30
0.44
0.59
0.74
0.89
1.04
1.19
1.34
5200 0.00
0.15
0.31
0.46
0.62
0.77
0.93
1.08
1.23
1.39
5400 0.00
0.16
0.32
0.48
0.64
0.80
0.96
1.12
1.28
1.44
5600 0.00
0.17
0.33
0.50
0.66
0.83
1.00
1.16
1.33
1.50
5800 0.00
0.17
0.34
0.52
0.69
0.86
1.03
1.20
1.38
1.55
6000 0.00
0.18
0.36
0.53
0.71
0.89
1.07
1.25
1.42
1.60
D - d
A
Arc of contact on small pulley
(degrees)
0.00
0.10
180
174
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.00
1.10
1.20
1.30
1.40
1.50
169
163
157
151
145
139
G
113
106
99
91
83
0.91
0.89
0.87
0.85
0.82
0.80
0.77
0.73
0.70
0.65
1.00
0.99
0.97
0.96
0.94
0.93
Factor G
Belt length correction factor C
L
Belt ref.
ISO Corr.
datum factor length C
L mm
XPA-800 800 0.82
XPA-850
XPA-900
850 0.83
900 0.84
XPA-950 950 0.85
XPA-1000 1000 0.86
XPA-1060 1060 0.87
XPA-1120 1120 0.88
XPA-1180 1180 0.89
XPA-1250 1250 0.90
XPA-1320 1320 0.91
XPA-1400 1400 0.92
XPA-1500 1500 0.93
XPA-1600
XPA-1700
XPA-1800
C
XPA-1900 1900 0.97
XPA-2000 2000 0.98
XPA-2120 2120 0.99
XPA-2240 2240 1.00
XPA-2360 2360 1.01
XPA-2500 2500 1.02
XPA-2650 2650 1.03
L
XPA-2800 2800 1.04
XPA-3000 3000 1.05
XPA-3150 3150 1.06
XPA-3350 3350 1.07
XPA-3550 3550 1.08
QP
6
Number of belts required =
Design kW
(A + B + C) x G x C
L
49
POWER RATINGS QUAD-POWER II
Basic kW per belt
QP
6
112 118 125 132 140 150 160 170 180 190 200 212 224 236 250 280 315
RPM of faster shaft
585 3.32
3.70
4.16
4.61
5.12
5.76
6.39
7.02
7.65
8.28
8.91
9.65 10.40 11.14
12.00 13.83 15.94
700 3.87
4.33
4.87
5.40
6.01
6.76
7.51
8.26
9.00
9.74 10.48 11.36 12.24 13.11
14.13 16.28 18.76
725 3.99
4.47
5.02
5.57
6.20
6.98
7.75
8.52
9.29 10.06 10.82 11.73 12.64 13.54
14.58 16.81 19.36
870 4.67
5.24
5.89
6.54
7.29
8.21
9.13 10.04 10.95 11.85 12.75 13.83 14.89 15.96
17.19 19.80 22.80
950 5.04
5.65
6.36
7.07
7.87
8.87
9.87 10.86 11.84 12.82 13.80 14.96 16.11 17.26
18.59 21.41 24.64
1160 5.98
6.71
7.57
8.41
9.38 10.58 11.77 12.96 14.14 15.31 16.47 17.86 19.23 20.60
22.18 25.51 29.31
1450 7.21
8.11
9.16 10.20 11.38 12.85 14.30 15.74 17.18 18.60 20.01 21.68 23.34 24.98
26.87 30.84 35.32
1750 8.42
9.49 10.73 11.96 13.35 15.08 16.79 18.49 20.16 21.82 23.47 25.41 27.33 29.23
31.40 35.92 40.95
2850 12.33 13.95 15.82 17.66 19.73 22.28 24.78 27.22 29.61 31.93 34.20
36.83 39.37
3450 14.10 15.97 18.13 20.24 22.60 25.49 28.29
30.99 33.60 36.12
100 0.69
0.77
0.85
0.94
1.03
1.15
1.27
1.39
1.51
1.63
1.75
1.89
2.04
2.18
2.34
2.69
3.10
200 1.29
1.43
1.59
1.76
1.94
2.18
2.41
2.64
2.87
3.10
3.33
3.60
3.87
4.15
4.46
5.14
5.92
300 1.84
2.05
2.29
2.53
2.81
3.15
3.49
3.83
4.16
4.50
4.83
5.23
5.63
6.03
6.49
7.48
8.62
400 2.38
2.65
2.97
3.28
3.64
4.09
4.53
4.97
5.42
5.86
6.30
6.82
7.34
7.86
8.47
9.76 11.25
500 2.89
3.23
3.62
4.00
4.45
5.00
5.55
6.09
6.64
7.18
7.72
8.37
9.01
9.65
10.39 11.98 13.81
600 3.39
3.79
4.25
4.71
5.24
5.89
6.54
7.19
7.83
8.47
9.11
9.88 10.64 11.40
12.28 14.15 16.31
700 3.87
4.33
4.87
5.40
6.01
6.76
7.51
8.26
9.00
9.74 10.48 11.36 12.24 13.11
14.13 16.28 18.76
800 4.35
4.87
5.48
6.08
6.76
7.62
8.47
9.31 10.15 10.99 11.83 12.82 13.81 14.80
15.94 18.36 21.15
900 4.81
5.39
6.07
6.74
7.51
8.46
9.41 10.35 11.29 12.22 13.15 14.25 15.35 16.45
17.72 20.41 23.49
1000 5.27
5.91
6.65
7.39
8.24
9.29 10.33 11.37 12.40 13.42 14.44 15.66 16.87 18.07
19.46 22.40 25.78
1100 5.71
6.41
7.23
8.04
8.96 10.10 11.24 12.37 13.49 14.61 15.72 17.04 18.35 19.66
21.17 24.36 28.00
1200 6.15
6.91
7.79
8.67
9.66 10.90 12.13 13.35 14.57 15.77 16.97 18.40 19.81 21.22
22.84 26.27 30.17
1300 6.58
7.40
8.34
9.29 10.36 11.69 13.01 14.32 15.62 16.92 18.20 19.73 21.25 22.75
24.48 28.13 32.28
1400 7.00
7.88
8.89
9.90 11.04 12.46 13.87 15.27 16.66 18.04 19.41 21.04 22.65 24.24
26.09 29.95 34.32
1500 7.42
8.35
9.42 10.50 11.71 13.23 14.73 16.21 17.69 19.15 20.60 22.32 24.02 25.71
27.65 31.72 36.30
1600
1700
1800
1900
7.82
8.22
8.62
8.81
A
29.18 33.44 38.21
30.67 35.11 40.05
32.12 36.72 41.82
33.52 38.27
43.51
2000 9.38 10.58 11.98 13.36 14.92 16.86 18.77 20.66 22.53 24.37 26.19 28.33 30.45 32.52
34.89 39.77
45.12
2100 9.76 11.01 12.46 13.90 15.53 17.54 19.53 21.50 23.44 25.35 27.23 29.45 31.63 33.77
36.21
41.21 46.65
2200 10.12 11.43 12.94 14.43 16.13 18.22 20.28 22.32 24.33 26.30 28.25 30.54 32.79 34.98
37.48
42.58
2300 10.48 11.84 13.40 14.96 16.71 18.88 21.02 23.13 25.20 27.24 29.24 31.60 33.90 36.15
38.71 43.90
2400 10.83 12.24 13.86 15.47 17.29 19.53 21.74 23.91 26.05 28.15 30.21 32.63 34.99 37.28
39.88
2500 11.18 12.63 14.31 15.97 17.85 20.17 22.44 24.68 26.88 29.03 31.15 33.62 36.03
38.37
41.01
2600 11.52 13.02 14.75 16.47 18.41 20.79 23.13 25.43 27.69 29.89 32.05 34.58
37.04 39.41
42.08
2700 11.85 13.40 15.19 16.95 18.95 21.40 23.80 26.16 28.47 30.73 32.94 35.51
38.00 40.41
2800 12.17 13.77 15.61 17.43 19.47 21.99 24.46 26.87 29.23 31.54 33.79
36.40 38.93 41.36
2900 12.49 14.13 16.02 17.89 19.99 22.57 25.10 27.57 29.97 32.32
34.60 37.26 39.81
3000 12.80 14.48 16.43 18.34 20.50 23.14 25.72 28.24 30.69 33.08
35.39 38.08
3100 13.10 14.83 16.82 18.78 20.99 23.69 26.32 28.89 31.38
33.80 36.15 38.86
3200 13.40 15.17 17.21 19.21 21.47 24.22 26.91 29.52
32.05 34.50 36.87
3300 13.68 15.50 17.58 19.63 21.93 24.74 27.47 30.12
32.69 35.17 37.56
3400 13.96 15.82 17.95 20.04 22.38 25.24 28.02
30.71 33.30 35.81
3500 14.24 16.13 18.30 20.43 22.82 25.73 28.55
31.27 33.89 36.42
3600 14.50 16.43 18.65 20.82 23.25 26.20
29.05 31.81 34.46
3700 14.76 16.73 18.98 21.19 23.66 26.65
29.54 32.32 34.99
3800 15.01 17.01 19.30 21.55 24.06 27.09
30.01 32.81
3900 15.25 17.29 19.62 21.90 24.44
27.51 30.46 33.28
4000 15.48 17.55 19.92 22.23 24.80
27.91 30.88
4200 15.92 18.06 20.49 22.86
25.49 28.66
4400 16.32 18.52 21.02
23.44 26.12 29.33
4600 16.69 18.94
21.49 23.96 26.68
4800 17.03 19.32
21.92 24.43
5000 17.32
19.66 22.30 24.84
5200 17.58 19.95 22.63
5400 17.80 20.20
5600 17.97 20.40
5800 18.11
XPB-5VX
50
For speeds over 30 m/s we recommend that pulleys be dynamically balanced.
Additional kW per belt for belt life
C
25000 Hrs
d x RPM
214592
12000 Hrs
0
6000 Hrs
d x RPM
226757
POWER RATINGS QUAD-POWER II
Additional kW per belt for speed ratio Arc of contact correction factor G
RPM of faster shaft
1 1.02
1.04
1.06
1.09
1.12
1.16
1.21
1.29 >1.44
to to to to to to to to to
1.01
1.03
1.05
1.08
1.11
1.15
1.2
1.28
1.44
585 0.00
0.04
0.08
0.11
0.15
0.19
0.23
0.27
0.31
0.34
700 0.00
0.05
0.09
0.14
0.18
0.23
0.27
0.32
0.37
0.41
725 0.00
0.05
0.09
0.14
0.19
0.24
0.28
0.33
0.38
0.43
870 0.00
0.06
0.11
0.17
0.23
0.28
0.34
0.40
0.45
0.51
950 0.00
0.06
0.12
0.19
0.25
0.31
0.37
0.43
0.50
0.56
1160 0.00
0.08
0.15
0.23
0.30
0.38
0.45
0.53
0.60
0.68
1450 0.00
0.09
0.19
0.28
0.38
0.47
0.57
0.66
0.76
0.85
1750 0.00
0.11
0.23
0.34
0.46
0.57
0.68
0.80
0.91
1.03
2850 0.00
0.19
0.37
0.56
0.74
0.93
1.11
1.30
1.49
1.67
3450 0.00
0.23
0.45
0.67
0.90
1.12
1.35
1.57
1.80
2.02
100 0.00
0.01
0.01
0.02
0.03
0.03
0.04
0.05
0.05
0.06
200 0.00
0.01
0.03
0.04
0.05
0.07
0.08
0.09
0.10
0.12
300 0.00
0.02
0.04
0.06
0.08
0.10
0.12
0.14
0.16
0.18
400 0.00
0.03
0.05
0.08
0.10
0.13
0.16
0.18
0.21
0.23
500 0.00
0.03
0.07
0.10
0.13
0.16
0.20
0.23
0.26
0.29
600 0.00
0.04
0.08
0.12
0.16
0.20
0.23
0.27
0.31
0.35
700 0.00
0.05
0.09
0.14
0.18
0.23
0.27
0.32
0.37
0.41
800 0.00
0.05
0.10
0.16
0.21
0.26
0.31
0.36
0.42
0.47
900 0.00
0.06
0.12
0.18
0.23
0.29
0.35
0.41
0.47
0.53
1000 0.00
0.07
0.13
0.20
0.26
0.33
0.39
0.46
0.52
0.59
1100 0.00
0.07
0.14
0.21
0.29
0.36
0.43
0.50
0.57
0.65
1200 0.00
0.08
0.16
0.23
0.31
0.39
0.47
0.55
0.63
0.70
1300
1400
1500
1600
0.00
0.00
0.00
0.00
0.08
0.09
0.10
0.10
0.17
0.18
0.20
0.21
0.25
0.27
0.29
0.31
B
0.34
0.37
0.39
0.42
0.42
0.46
0.49
0.52
0.51
0.55
0.59
0.63
0.59
0.64
0.68
0.73
0.68
0.73
0.78
0.83
0.76
0.82
0.88
0.94
1700 0.00
0.11
0.22
0.33
0.44
0.55
0.66
0.78
0.89
1.00
1800 0.00
0.12
0.23
0.35
0.47
0.59
0.70
0.82
0.94
1.06
1900 0.00
0.12
0.25
0.37
0.50
0.62
0.74
0.87
0.99
1.12
2000 0.00
0.13
0.26
0.39
0.52
0.65
0.78
0.91
1.04
1.17
2100 0.00
0.14
0.27
0.41
0.55
0.68
0.82
0.96
1.10
1.23
2200 0.00
0.14
0.29
0.43
0.57
0.72
0.86
1.00
1.15
1.29
2300 0.00
0.15
0.30
0.45
0.60
0.75
0.90
1.05
1.20
1.35
2400 0.00
0.16
0.31
0.47
0.63
0.78
0.94
1.09
1.25
1.41
2500 0.00
0.16
0.33
0.49
0.65
0.81
0.98
1.14
1.30
1.47
2600 0.00
0.17
0.34
0.51
0.68
0.85
1.02
1.19
1.36
1.53
2700 0.00
0.18
0.35
0.53
0.70
0.88
1.06
1.23
1.41
1.58
2800 0.00
0.18
0.36
0.55
0.73
0.91
1.09
1.28
1.46
1.64
2900 0.00
0.19
0.38
0.57
0.76
0.94
1.13
1.32
1.51
1.70
3000 0.00
0.20
0.39
0.59
0.78
0.98
1.17
1.37
1.56
1.76
3100 0.00
0.20
0.40
0.61
0.81
1.01
1.21
1.41
1.62
1.82
3200 0.00
0.21
0.42
0.63
0.83
1.04
1.25
1.46
1.67
1.88
3300 0.00
0.22
0.43
0.64
0.86
1.07
1.29
1.51
1.72
1.94
3400 0.00
0.22
0.44
0.66
0.89
1.11
1.33
1.55
1.77
2.00
3500 0.00
0.23
0.46
0.68
0.91
1.14
1.37
1.60
1.83
2.05
3600 0.00
0.24
0.47
0.70
0.94
1.17
1.41
1.64
1.88
2.11
3700 0.00
0.24
0.48
0.72
0.96
1.21
1.45
1.69
1.93
2.17
3800 0.00
0.25
0.49
0.74
0.99
1.24
1.49
1.73
1.98
2.23
3900 0.00
0.25
0.51
0.76
1.02
1.27
1.52
1.78
2.03
2.29
4000 0.00
0.26
0.52
0.78
1.04
1.30
1.56
1.82
2.09
2.35
4200 0.00
0.27
0.55
0.82
1.10
1.37
1.64
1.92
2.19
2.47
4400 0.00
0.29
0.57
0.86
1.15
1.43
1.72
2.01
2.29
2.58
4600 0.00
0.30
0.60
0.90
1.20
1.50
1.80
2.10
2.40
2.70
4800 0.00
0.31
0.62
0.94
1.25
1.56
1.88
2.19
2.50
2.82
5000 0.00
0.33
0.65
0.98
1.30
1.63
1.95
2.28
2.61
2.93
5200 0.00
0.34
0.68
1.02
1.36
1.69
2.03
2.37
2.71
3.05
5400 0.00
0.35
0.70
1.05
1.41
1.76
2.11
2.46
2.82
3.17
5600 0.00
0.37
0.73
1.09
1.46
1.82
2.19
2.55
2.92
3.29
5800 0.00
0.38
0.75
1.13
1.51
1.89
2.27
2.65
3.02
3.40
D - d
A
Arc of contact on small pulley
(degrees)
0.00
0.10
180
174
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.00
1.10
1.20
1.30
1.40
1.50
169
163
157
151
145
139
G
113
106
99
91
83
0.91
0.89
0.87
0.85
0.82
0.80
0.77
0.73
0.70
0.65
1.00
0.99
0.97
0.96
0.94
0.93
Factor G
Belt length correction factor C
L
Belt ref.
Belt ref.
ISO Corr.
datum factor length C
L mm
XPB-1250 1250 0.85 5VX-500 1270 0.85
XPB-1260 1260 0.85 5VX-530 1345 0.86
XPB-1320 1320 0.86 5VX-560 1420 0.87
XPB-1340 1340 0.86 5VX-600 1525 0.88
XPB-1400 1400 0.87 5VX-630 1600 0.89
XPB-1410 1410 0.87 5VX-670 1700 0.90
XPB-1500 1500 0.88 5VX-710 1805 0.91
XPB-1510 1510 0.88 5VX-750 1905 0.92
XPB-1590 1590 0.89 5VX-800 2030 0.93
XPB-1600 1600 0.89 5VX-850 2160 0.94
XPB-1690 1690 0.90 5VX-900 2285 0.95
XPB-1700 1700 0.90 5VX-950 2415 0.96
XPB-1800
XPB-1900
XPB-2000
XPB-2240
XPB-2280
XPB-2360
C
2240 0.94 5VX-1400
2280 0.95 5VX-1500
2360 0.95 5VX-1600
L
2540 0.96
2690 0.97
2845 0.98
XPB-2020 2020 0.93 5VX-1180 2995 0.99
XPB-2120 2120 0.93 5VX-1250 3175 1.00
XPB-2150 2150 0.94 5VX-1320 3355 1.01
3555 1.02
3810 1.03
4065 1.04
XPB-2410 2410 0.96 5VX-1700 4320 1.05
XPB-2500 2500 0.96 5VX-1800 4570 1.06
XPB-2530 2530 0.96 5VX-1900 4825 1.07
XPB-2650 2650 0.97 5VX-2000 5080 1.08
XPB-2680 2680 0.97
XPB-2800 2800 0.98
XPB-2840 2840 0.98
XPB-2990 2990 0.99
XPB-3000 3000 0.99
XPB-3150 3150 1.00
XPB-3350 3350 1.01
XPB-3550 3550 1.02
RMA Corr.
eff.
factor length C
L mm
QP
6
Number of belts required =
Design kW
(A + B + C) x G x C
L
51
POWER RATINGS QUAD-POWER II
Basic kW per belt
180 190 200 212 224 236 250 265 280 300 315 335 355 375 400 425 450
RPM of faster shaft
585 10.15 11.29 12.44 13.81 15.17 16.52 18.10 19.78 21.45 23.67 25.32 27.51 29.69 31.86
34.55 37.22 39.87
700 11.86 13.22 14.57 16.18 17.79 19.39 21.24 23.22 25.19 27.79 29.74 32.31 34.87 37.40
40.55 43.66 46.75
725 12.23 13.63 15.02 16.69 18.35 20.00 21.91 23.96 25.99 28.68 30.68 33.33 35.97 38.58
41.82 45.03 48.21
870 14.30 15.96 17.61 19.58 21.53 23.48 25.74 28.14 30.53 33.69 36.04 39.14 42.22 45.27
49.04 52.76 56.43
950 15.42 17.21 19.00 21.13 23.25 25.35 27.79 30.39 32.97 36.37 38.90 42.25 45.56 48.83
52.87 56.86 60.78
1160 18.25 20.40 22.53 25.07 27.60 30.11 33.01 36.09 39.14 43.16 46.14 50.07 53.94 57.75
62.42 67.01 71.49
1450 21.93 24.54 27.13 30.21 33.26 36.28 39.77 43.46 47.10 51.87 55.39 59.99 64.50 68.90
74.25 79.43 84.43
1750 25.47 28.52 31.55 35.14 38.68 42.18 46.20 50.43 54.58 59.99 63.94 69.08
74.05 78.85
2850 35.86 40.19
44.42 49.36 54.13
3450 39.57 44.30
100 2.11
2.32
2.54
2.80
3.06
3.32
3.62
3.94
4.26
4.69
5.00
5.43
5.85
6.27
6.79
7.31
7.83
200 3.93
4.34
4.76
5.26
5.76
6.26
6.84
7.45
8.07
8.89
9.50 10.31 11.12 11.92
12.93 13.93 14.92
300 5.63
6.25
6.86
7.59
8.32
9.05
9.90 10.80 11.70 12.90 13.79 14.98 16.16 17.33
18.80 20.26 21.71
400 7.27
8.07
8.87
9.83 10.79 11.74 12.85 14.03 15.21 16.77 17.94 19.49 21.03 22.57
24.48 26.38 28.26
3400 39.32 44.03
3500 39.80 44.56
3600 40.25
3700 40.64
500 8.84
9.84 10.82 12.01 13.18 14.36 15.72 17.17 18.62 20.54 21.97 23.88 25.77 27.65
29.99 32.31 34.62
600 10.37 11.55 12.72 14.12 15.51 16.90 18.51 20.23 21.94 24.21 25.90 28.15 30.38 32.59
35.34 38.07 40.78
700 11.86 13.22 14.57 16.18 17.79 19.39 21.24 23.22 25.19 27.79 29.74 32.31 34.87 37.40
40.55 43.66 46.75
800 13.31 14.84 16.37 18.19 20.01 21.81 23.91 26.14 28.36 31.29 33.47 36.37 39.23 42.08
45.60 49.08 52.52
900 14.72 16.43 18.13 20.16 22.18 24.19 26.51 28.99 31.45 34.70 37.12 40.32 43.48 46.62
50.49 54.31 58.08
1000 16.11 17.98 19.85 22.08 24.30 26.51 29.06 31.77 34.47 38.02 40.67 44.16 47.61 51.01
55.22 59.35 63.42
1100 17.45 19.50 21.54 23.97 26.38 28.77 31.54 34.49 37.41 41.26 44.12 47.88 51.60 55.27
59.78 64.20 68.53
1200 18.77 20.98 23.18 25.80 28.40 30.99 33.97 37.14 40.28 44.41 47.47 51.50 55.46 59.37
64.15 68.83 73.40
1300 20.06 22.43 24.79 27.60 30.38 33.15 36.34 39.72 43.07 47.46 50.72 54.99 59.19 63.31
68.34 73.25
78.02
1400 21.32 23.85 26.36 29.35 32.32 35.25 38.64 42.23 45.77 50.42 53.86 58.36 62.77 67.08
72.34
77.43 82.36
1500 22.54 25.23 27.89 31.06 34.20 37.30 40.88 44.67 48.40 53.29 56.89 61.59 66.19 70.68
76.12 81.37
A
70.47 75.50
67.80 73.13
74.09
72.56 77.32
79.69
2000 28.20 31.59 34.95 38.92 42.83 46.67 51.07 55.68 60.18
65.99 70.20
2100 29.23 32.76 36.24 40.35 44.39 48.36 52.89 57.63
62.24 68.18 72.47
2200 30.23 33.88 37.48 41.73 45.90 49.98 54.64
59.49 64.20 70.24
2300 31.20 34.97 38.68 43.06 47.34 51.53
56.30 61.26 66.05
2400 32.13 36.01 39.83 44.33 48.72 53.01
57.88 62.92
2500 33.02 37.02 40.94 45.55 50.04
54.42 59.38 64.49
2600 33.88 37.98 42.00 46.71
51.30 55.75 60.78
2700 34.70 38.90 43.01 47.81
52.48 57.01
2800 35.48 39.77 43.96
48.86 53.60 58.19
2900 36.22 40.60
44.87 49.84 54.65
3000 36.93 41.38
45.72 50.76
3100 37.59
42.12 46.52 51.62
3200 38.21 42.80 47.26
3300 38.78 43.44 47.95
XPC
QP
6
52
For speeds over 30 m/s we recommend that pulleys be dynamically balanced.
Additional kW per belt for belt life
C
25000 Hrs
d x RPM
118064
12000 Hrs
0
6000 Hrs
d x RPM
125156
POWER RATINGS QUAD-POWER II
Additional kW per belt for speed ratio Arc of contact correction factor G
RPM of faster shaft
1 1.02
1.04
1.06
1.09
1.12
1.16
1.21
1.29 >1.44
to to to to to to to to to
1.01
1.03
1.05
1.08
1.11
1.15
1.2
1.28
1.44
585 0.00
0.10
0.21
0.31
0.41
0.52
0.62
0.72
0.83
0.93
700 0.00
0.12
0.25
0.37
0.49
0.62
0.74
0.86
0.99
1.11
725 0.00
0.13
0.26
0.38
0.51
0.64
0.77
0.90
1.02
1.15
870 0.00
0.15
0.31
0.46
0.61
0.77
0.92
1.07
1.23
1.38
950 0.00
0.17
0.33
0.50
0.67
0.84
1.01
1.17
1.34
1.51
1160 0.00
0.21
0.41
0.61
0.82
1.02
1.23
1.43
1.64
1.84
1450 0.00
0.26
0.51
0.77
1.02
1.28
1.53
1.79
2.05
2.30
1750 0.00
0.31
0.62
0.93
1.24
1.54
1.85
2.16
2.47
2.78
2850 0.00
0.50
1.00
1.51
2.01
2.51
3.02
3.52
4.02
4.53
3450 0.00
0.61
1.22
1.82
2.44
3.04
3.65
4.26
4.87
5.48
100 0.00
0.02
0.04
0.05
0.07
0.09
0.11
0.12
0.14
0.16
200 0.00
0.04
0.07
0.11
0.14
0.18
0.21
0.25
0.28
0.32
300 0.00
0.05
0.11
0.16
0.21
0.26
0.32
0.37
0.42
0.48
400 0.00
0.07
0.14
0.21
0.28
0.35
0.42
0.49
0.56
0.64
500 0.00
0.09
0.18
0.26
0.35
0.44
0.53
0.62
0.71
0.79
600 0.00
0.11
0.21
0.32
0.42
0.53
0.64
0.74
0.85
0.95
700 0.00
0.12
0.25
0.37
0.49
0.62
0.74
0.86
0.99
1.11
800 0.00
0.14
0.28
0.42
0.56
0.71
0.85
0.99
1.13
1.27
900 0.00
0.16
0.32
0.48
0.64
0.79
0.95
1.11
1.27
1.43
1000 0.00
0.18
0.35
0.53
0.71
0.88
1.06
1.24
1.41
1.59
1100 0.00
0.19
0.39
0.58
0.78
0.97
1.16
1.36
1.55
1.75
1200 0.00
0.21
0.42
0.63
0.85
1.06
1.27
1.48
1.69
1.91
1300
1400
1500
1600
0.00
0.00
0.00
0.00
0.23
0.25
0.27
0.28
0.46
0.49
0.53
0.56
0.69
0.74
0.79
0.85
B
0.92
0.99
1.06
1.13
1.15
1.23
1.32
1.41
1.38
1.48
1.59
1.69
1.61
1.73
1.85
1.98
1.84
1.98
2.12
2.26
2.07
2.23
2.38
2.54
1700 0.00
0.30
0.60
0.90
1.20
1.50
1.80
2.10
2.40
2.70
1800 0.00
0.32
0.63
0.95
1.27
1.59
1.91
2.22
2.54
2.86
1900 0.00
0.34
0.67
1.01
1.34
1.68
2.01
2.35
2.68
3.02
2000 0.00
0.35
0.70
1.06
1.41
1.76
2.12
2.47
2.82
3.18
2100 0.00
0.37
0.74
1.11
1.48
1.85
2.22
2.59
2.97
3.34
2200 0.00
0.39
0.78
1.16
1.55
1.94
2.33
2.72
3.11
3.50
2300 0.00
0.41
0.81
1.22
1.62
2.03
2.43
2.84
3.25
3.66
2400 0.00
0.42
0.85
1.27
1.69
2.12
2.54
2.96
3.39
3.81
2500 0.00
0.44
0.88
1.32
1.77
2.20
2.65
3.09
3.53
3.97
2600 0.00
0.46
0.92
1.38
1.84
2.29
2.75
3.21
3.67
4.13
2700 0.00
0.48
0.95
1.43
1.91
2.38
2.86
3.33
3.81
4.29
2800 0.00
0.49
0.99
1.48
1.98
2.47
2.96
3.46
3.95
4.45
2900 0.00
0.51
1.02
1.53
2.05
2.56
3.07
3.58
4.10
4.61
3000 0.00
0.53
1.06
1.59
2.12
2.65
3.18
3.71
4.24
4.77
3100 0.00
0.55
1.09
1.64
2.19
2.73
3.28
3.83
4.38
4.93
3200 0.00
0.57
1.13
1.69
2.26
2.82
3.39
3.95
4.52
5.09
3300 0.00
0.58
1.16
1.75
2.33
2.91
3.49
4.08
4.66
5.24
3400 0.00
0.60
1.20
1.80
2.40
3.00
3.60
4.20
4.80
5.40
3500 0.00
0.62
1.23
1.85
2.47
3.09
3.70
4.32
4.94
5.56
3600 0.00
0.64
1.27
1.90
2.54
3.18
3.81
4.45
5.08
5.72
3700 0.00
0.65
1.30
1.96
2.61
3.26
3.92
4.57
5.22
5.88
D - d
A
Arc of contact on small pulley
(degrees)
0.00
0.10
180
174
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.00
1.10
1.20
1.30
1.40
1.50
169
163
157
151
145
139
G
113
106
99
91
83
0.91
0.89
0.87
0.85
0.82
0.80
0.77
0.73
0.70
0.65
1.00
0.99
0.97
0.96
0.94
0.93
Factor G
Belt length correction factor C
L
Belt ref.
ISO Corr.
datum factor length C
L mm
XPC2000 2000 0,90
XPC2120 2120 0,91
XPC2240 2240 0,92
XPC2360 2360 0,93
XPC2500 2500 0,94
XPC2650 2650 0,95
XPC2800 2800 0,96
XPC3000 3000 0,97
XPC3150 3150 0,98
XPC3350 3350 0,99
XPC3550 3550 1,00
XPC3750 3750 1,00
XPC4000
XPC4250
XPC4500
C
L
QP
6
Number of belts required =
Design kW
(A + B + C) x G x C
L
53
POWER RATINGS SUPER HC
®
MN / SUPER HC
®
SHC
6
54
C
Basic kW per belt or rib
All values printed in italics are for use with Super HC
®
Moulded Notch construction only.
56 60 63 67 71 75 80 85 90 95 100 106 112 118 125 132 140
RPM of faster shaft
585
0.42
0.50
0.55
0.63
0.66
0.74
0.84
0.94
1.04
1.14
1.24
1.36
1.47
1.59
1.73
1.86
2.01
700
0.47
0.56
0.63
0.72
0.77
0.86
0.98
1.10
1.22
1.33
1.45
1.59
1.73
1.87
2.03
2.19
2.37
725
0.48
0.57
0.65
0.74
0.79
0.89
1.01
1.13
1.26
1.38
1.50
1.64
1.78
1.93
2.09
2.26
2.44
870
0.55
0.66
0.74
0.85
0.92
1.04
1.19
1.33
1.47
1.62
1.76
1.93
2.10
2.26
2.46
2.65
2.87
950
0.58
0.70
0.79
0.91
0.99
1.12
1.28
1.43
1.59
1.74
1.90
2.08
2.27
2.45
2.66
2.87
3.11
1160
0.67
0.81
0.91
1.06
1.18
1.33
1.52
1.70
1.89
2.08
2.26
2.48
2.70
2.92
3.17
3.42
3.71
1450
0.77
0.95
1.07
1.24
1.41
1.60
1.83
2.06
2.29
2.51
2.74
3.01
3.28
3.54
3.85
4.15
4.50
1750
0.87
1.07
1.22
1.42
1.64
1.86
2.14
2.41
2.68
2.95
3.21
3.53
3.85
4.16
4.52
4.88
5.28
2850
1.13
1.45
1.68
1.99
2.40
2.74
3.15
3.57
3.97
4.38
4.77
5.24
5.71
6.16
6.69
7.20
7.77
3450
1.24
1.62
1.89
2.26
2.75
3.15
3.63
4.11
4.58
5.04
5.50
6.04
6.56
7.07
7.66
8.22
8.84
100
0.11
0.12
0.13
0.14
0.14
0.16
0.18
0.20
0.21
0.23
0.25
0.28
0.30
0.32
0.35
0.37
0.40
200
0.19
0.21
0.23
0.26
0.26
0.29
0.33
0.36
0.40
0.44
0.47
0.52
0.56
0.60
0.65
0.70
0.76
300
0.25
0.30
0.33
0.36
0.37
0.41
0.47
0.52
0.58
0.63
0.68
0.75
0.81
0.87
0.94
1.02
1.10
400
0.31
0.36
0.41
0.46
0.48
0.53
0.60
0.67
0.74
0.81
0.88
0.97
1.05
1.13
1.23
1.32
1.43
500
0.37
0.44
0.48
0.55
0.58
0.65
0.73
0.82
0.91
0.99
1.08
1.18
1.28
1.38
1.50
1.62
1.75
600
0.42
0.51
0.56
0.64
0.67
0.76
0.86
0.96
1.06
1.17
1.27
1.39
1.51
1.63
1.77
1.90
2.06
700
0.47
0.56
0.63
0.72
0.77
0.86
0.98
1.10
1.22
1.33
1.45
1.59
1.73
1.87
2.03
2.19
2.37
800
0.52
0.62
0.69
0.79
0.86
0.97
1.10
1.24
1.37
1.50
1.63
1.79
1.95
2.10
2.28
2.46
2.67
900
0.56
0.67
0.76
0.87
0.95
1.07
1.22
1.37
1.52
1.66
1.81
1.99
2.16
2.33
2.54
2.74
2.96
1000
0.61
0.73
0.83
0.95
1.04
1.17
1.34
1.50
1.66
1.82
1.99
2.18
2.37
2.56
2.78
3.00
3.25
1100
0.65
0.78
0.88
1.01
1.12
1.27
1.45
1.63
1.81
1.98
2.16
2.37
2.58
2.79
3.03
3.27
3.54
1200
0.68
0.83
0.94
1.08
1.21
1.37
1.56
1.75
1.95
2.14
2.33
2.55
2.78
3.01
3.27
3.53
3.82
1300
0.72
0.88
0.99
1.14
1.29
1.46
1.67
1.88
2.08
2.29
2.49
2.74
2.98
3.22
3.50
3.78
4.09
1400
0.75
0.92
1.05
1.21
1.37
1.55
1.78
2.00
2.22
2.44
2.66
2.92
3.18
3.44
3.73
4.03
4.37
1500
0.79
0.97
1.10
1.28
1.45
1.64
1.88
2.12
2.35
2.59
2.82
3.10
3.37
3.65
3.96
4.28
4.63
1600
1700
1800
1900
0.81
0.85
0.88
0.91
1.01
1.05
1.09
1.13
1.14
1.20
1.24
1.29
1.33
1.40
1.45
1.51
1.53
1.61
1.68
1.76
1.73
1.82
1.91
1.99
1.99
2.09
2.19
2.29
2.24
2.35
2.47
2.58
A
2.49
2.62
2.74
2.87
2.73
2.88
3.02
3.16
2.98
3.14
3.29
3.44
3.27
3.45
3.62
3.78
3.56
3.75
3.94
4.12
3.85
4.06
4.26
4.46
4.19
4.41
4.63
4.84
4.52
4.76
4.99
5.22
4.90
5.15
5.41
5.65
2000
0.94
1.17
1.34
1.56
1.83
2.08
2.39
2.69
2.99
3.30
3.59
3.95
4.30
4.65
5.05
5.45
5.90
2100
0.97
1.20
1.39
1.62
1.90
2.16
2.48
2.80
3.12
3.43
3.74
4.11
4.48
4.84
5.26
5.67
6.14
2200
0.99
1.24
1.43
1.67
1.97
2.24
2.58
2.91
3.24
3.56
3.89
4.27
4.65
5.03
5.46
5.89
6.37
2300
1.01
1.28
1.46
1.73
2.04
2.32
2.67
3.01
3.36
3.69
4.03
4.43
4.82
5.21
5.66
6.10
6.60
2400
1.03
1.31
1.51
1.77
2.11
2.40
2.76
3.12
3.47
3.82
4.17
4.58
4.99
5.39
5.86
6.31
6.82
2500
1.07
1.34
1.55
1.83
2.18
2.48
2.85
3.22
3.59
3.95
4.31
4.73
5.16
5.57
6.05
6.52
7.04
2600
1.09
1.38
1.58
1.87
2.24
2.55
2.94
3.32
3.70
4.07
4.44
4.88
5.32
5.74
6.23
6.72
7.26
2700
1.11
1.41
1.63
1.93
2.31
2.63
3.03
3.42
3.81
4.20
4.58
5.03
5.48
5.91
6.42
6.91
7.46
2800
1.12
1.43
1.66
1.97
2.37
2.70
3.11
3.52
3.92
4.32
4.71
5.17
5.63
6.08
6.60
7.10
7.67
2900
1.14
1.46
1.71
2.01
2.43
2.77
3.20
3.61
4.03
4.44
4.84
5.31
5.78
6.24
6.77
7.29
7.86
3000
1.17
1.50
1.74
2.06
2.49
2.84
3.28
3.71
4.13
4.55
4.96
5.45
5.93
6.40
6.94
7.47
8.06
3100
1.19
1.52
1.77
2.10
2.55
2.91
3.36
3.80
4.24
4.66
5.09
5.59
6.08
6.56
7.11
7.65
8.24
3200
1.20
1.55
1.80
2.15
2.61
2.98
3.44
3.89
4.34
4.78
5.21
5.72
6.22
6.71
7.27
7.82
8.42
3300
1.22
1.57
1.84
2.19
2.67
3.05
3.52
3.98
4.44
4.89
5.33
5.85
6.36
6.86
7.43
7.98
8.59
3400
1.24
1.61
1.87
2.23
2.72
3.11
3.59
4.07
4.53
4.99
5.44
5.98
6.50
7.00
7.58
8.14
8.76
3500
1.25
1.63
1.90
2.28
2.78
3.18
3.67
4.15
4.63
5.10
5.56
6.10
6.63
7.14
7.73
8.30
8.92
3600
1.27
1.65
1.94
2.32
2.83
3.24
3.74
4.24
4.72
5.20
5.67
6.22
6.76
7.28
7.87
8.45
9.08
3700
1.29
1.68
1.97
2.35
2.89
3.30
3.81
4.32
4.81
5.30
5.78
6.33
6.88
7.41
8.01
8.59
9.22
3800
1.30
1.71
2.00
2.40
2.94
3.36
3.88
4.40
4.90
5.40
5.88
6.45
7.00
7.54
8.14
8.73
9.36
3900
1.32
1.73
2.04
2.43
2.99
3.42
3.95
4.48
4.99
5.49
5.98
6.56
7.12
7.66
8.27
8.86
9.50
4000
1.33
1.75
2.06
2.48
3.04
3.48
4.02
4.55
5.07
5.58
6.08
6.67
7.23
7.78
8.40
8.99
9.62
4100
1.34
1.77
2.09
2.51
3.09
3.53
4.09
4.63
5.16
5.67
6.18
6.77
7.34
7.89
8.51
9.10
9.74
4200
1.35
1.79
2.12
2.55
3.13
3.59
4.15
4.70
5.24
5.76
6.27
6.87
7.45
8.00
8.63
9.22
9.86
4300
1.36
1.82
2.15
2.59
3.18
3.64
4.21
4.77
5.31
5.84
6.36
6.97
7.55
8.11
8.73
9.33
9.96
4400
1.38
1.84
2.18
2.62
3.22
3.69
4.27
4.84
5.39
5.93
6.45
7.06
7.65
8.21
8.83
9.43 10.06
4500
1.39
1.86
2.20
2.65
3.26
3.74
4.33
4.90
5.46
6.01
6.53
7.15
7.74
8.30
8.93
9.52 10.15
4600
1.40
1.87
2.22
2.70
3.31
3.79
4.39
4.97
5.53
6.08
6.62
7.23
7.83
8.39
9.02
9.61 10.23
4700
1.41
1.89
2.26
2.73
3.35
3.84
4.44
5.03
5.60
6.16
6.69
7.32
7.91
8.48
9.10
9.69 10.30
4800
1.42
1.91
2.28
2.76
3.38
3.88
4.50
5.09
5.67
6.23
6.77
7.39
7.99
8.56
9.18
9.76 10.37
4900
1.43
1.93
2.30
2.79
3.42
3.93
4.55
5.15
5.73
6.30
6.84
7.47
8.07
8.63
9.26
9.83 10.43
5000
1.44
1.95
2.32
2.83
3.46
3.97
4.60
5.20
5.79
6.36
6.91
7.54
8.14
8.70
9.32
9.89 10.47
For speeds over 30 m/s we recommend that pulleys be dynamically balanced.
Additional kW per belt for belt life
SPZ-3V-9J
6000 Hrs
d x RPM
624999
25000 Hrs
d x RPM
589971
12000 Hrs
0
POWER RATINGS SUPER HC
®
MN / SUPER HC
®
Additional kW per belt or rib for speed ratio Arc of contact correction factor G
RPM of faster shaft
1 to
1.02
to
1.06
to
1.12
to
1.19
to
1.27
to
1.39
to
1.58
to
1.95 >3.38
to
1.01
1.05
1.11
1.18
1.26
1.38
1.57
1.94
3.38
585 0.00
0.01
0.02
0.04
0.05
0.07
0.08
0.09
0.09
0.10
700 0.00
0.01
0.03
0.05
0.06
0.08
0.09
0.10
0.11
0.12
725 0.00
0.01
0.03
0.05
0.07
0.08
0.10
0.11
0.12
0.12
870 0.00
0.01
0.03
0.06
0.08
0.10
0.11
0.13
0.14
0.15
950 0.00
0.01
0.04
0.06
0.09
0.11
0.12
0.14
0.15
0.16
1160 0.00
0.02
0.05
0.08
0.11
0.13
0.15
0.17
0.19
0.20
1450 0.00
0.02
0.06
0.10
0.13
0.16
0.19
0.21
0.23
0.25
1750 0.00
0.03
0.07
0.12
0.16
0.20
0.23
0.26
0.28
0.30
2850 0.00
0.04
0.11
0.19
0.26
0.32
0.37
0.42
0.46
0.49
3450 0.00
0.05
0.13
0.23
0.32
0.39
0.45
0.51
0.56
0.59
100 0.00
0.00
0.00
0.01
0.01
0.01
0.01
0.01
0.02
0.02
200 0.00
0.00
0.01
0.01
0.02
0.02
0.03
0.03
0.03
0.03
300 0.00
0.00
0.01
0.02
0.03
0.03
0.04
0.04
0.05
0.05
400 0.00
0.01
0.02
0.03
0.04
0.04
0.05
0.06
0.06
0.07
500 0.00
0.01
0.02
0.03
0.05
0.06
0.07
0.07
0.08
0.09
600 0.00
0.01
0.02
0.04
0.06
0.07
0.08
0.09
0.10
0.10
700 0.00
0.01
0.03
0.05
0.06
0.08
0.09
0.10
0.11
0.12
800 0.00
0.01
0.03
0.05
0.07
0.09
0.11
0.12
0.13
0.14
900 0.00
0.01
0.04
0.06
0.08
0.10
0.12
0.13
0.15
0.15
1000 0.00
0.01
0.04
0.07
0.09
0.11
0.13
0.15
0.16
0.17
1100 0.00
0.02
0.04
0.07
0.10
0.12
0.14
0.16
0.18
0.19
1200 0.00
0.02
0.05
0.08
0.11
0.13
0.16
0.18
0.19
0.20
1300
1400
1500
1600
0.00
0.00
0.00
0.00
0.02
0.02
0.02
0.02
0.05
0.05
0.06
0.06
0.09
0.10
0.10
0.11
B
0.12
0.13
0.14
0.15
0.15
0.16
0.17
0.18
0.17
0.18
0.20
0.21
0.19
0.21
0.22
0.24
0.21
0.23
0.24
0.26
0.22
0.24
0.26
0.27
1700 0.00
0.02
0.07
0.12
0.16
0.19
0.22
0.25
0.27
0.29
1800 0.00
0.03
0.07
0.12
0.17
0.20
0.24
0.27
0.29
0.31
1900 0.00
0.03
0.07
0.13
0.18
0.21
0.25
0.28
0.31
0.32
2000 0.00
0.03
0.08
0.14
0.19
0.22
0.26
0.30
0.32
0.34
2100 0.00
0.03
0.08
0.14
0.19
0.24
0.28
0.31
0.34
0.36
2200 0.00
0.03
0.09
0.15
0.20
0.25
0.29
0.33
0.35
0.38
2300 0.00
0.03
0.09
0.16
0.21
0.26
0.30
0.34
0.37
0.39
2400 0.00
0.03
0.09
0.16
0.22
0.27
0.32
0.36
0.39
0.41
2500 0.00
0.04
0.10
0.17
0.23
0.28
0.33
0.37
0.40
0.43
2600 0.00
0.04
0.10
0.18
0.24
0.29
0.34
0.38
0.42
0.44
2700 0.00
0.04
0.11
0.18
0.25
0.30
0.36
0.40
0.44
0.46
2800 0.00
0.04
0.11
0.19
0.26
0.31
0.37
0.41
0.45
0.48
2900 0.00
0.04
0.11
0.20
0.27
0.33
0.38
0.43
0.47
0.50
3000 0.00
0.04
0.12
0.20
0.28
0.34
0.39
0.44
0.48
0.51
3100 0.00
0.04
0.12
0.21
0.29
0.35
0.41
0.46
0.50
0.53
3200 0.00
0.05
0.12
0.22
0.30
0.36
0.42
0.47
0.52
0.55
3300 0.00
0.05
0.13
0.22
0.31
0.37
0.43
0.49
0.53
0.56
3400 0.00
0.05
0.13
0.23
0.32
0.38
0.45
0.50
0.55
0.58
3500 0.00
0.05
0.14
0.24
0.32
0.39
0.46
0.52
0.56
0.60
3600 0.00
0.05
0.14
0.25
0.33
0.40
0.47
0.53
0.58
0.61
3700 0.00
0.05
0.14
0.25
0.34
0.42
0.49
0.55
0.60
0.63
3800 0.00
0.05
0.15
0.26
0.35
0.43
0.50
0.56
0.61
0.65
3900 0.00
0.06
0.15
0.27
0.36
0.44
0.51
0.58
0.63
0.67
4000 0.00
0.06
0.16
0.27
0.37
0.45
0.53
0.59
0.64
0.68
4100 0.00
0.06
0.16
0.28
0.38
0.46
0.54
0.61
0.66
0.70
4200 0.00
0.06
0.16
0.29
0.39
0.47
0.55
0.62
0.68
0.72
4300 0.00
0.06
0.17
0.29
0.40
0.48
0.57
0.64
0.69
0.73
4400 0.00
0.06
0.17
0.30
0.41
0.49
0.58
0.65
0.71
0.75
4500 0.00
0.06
0.18
0.31
0.42
0.51
0.59
0.67
0.73
0.77
4600 0.00
0.07
0.18
0.31
0.43
0.52
0.60
0.68
0.74
0.79
4700 0.00
0.07
0.18
0.32
0.44
0.53
0.62
0.70
0.76
0.80
4800 0.00
0.07
0.19
0.33
0.44
0.54
0.63
0.71
0.77
0.82
4900 0.00
0.07
0.19
0.33
0.45
0.55
0.64
0.73
0.79
0.84
5000 0.00
0.07
0.20
0.34
0.46
0.56
0.66
0.74
0.81
0.85
D - d
A
Arc of contact on small pulley
(degrees)
0.00
0.10
180
174
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.00
1.10
1.20
1.30
1.40
1.50
169
163
157
151
145
139
G
113
106
99
91
83
0.91
0.89
0.87
0.85
0.82
0.80
0.77
0.73
0.70
0.65
1.00
0.99
0.97
0.96
0.94
0.93
Factor G
Belt length correction factor C
L
Belt ref.
Belt ref.
ISO Corr.
datum factor length C
L mm
SPZ-560 560 0.81
3V-250
SPZ-600 600 0.82
3V-265
SPZ-630 630 0.83
3V-280
SPZ-670 670 0.84
3V-300
SPZ-710 710 0.85
3V-315
SPZ-750 750 0.86
3V-335
SPZ-800 800 0.87
3V-355
SPZ-850 850 0.88
3V-375
SPZ-900 900 0.89
3V-400 1015 0.92
SPZ-950 950 0.90
3V-425 1080 0.93
SPZ-1000 1000 0.91
3V-450 1145 0.94
SPZ-1060 1060 0.92
3V-475 1205 0.95
SPZ-1120 1120
C
0.93
3V-500 1270 0.96
900 0.89
955 0.91
SPZ-1180 1180 0.94
3V-530 1345 0.97
SPZ-1250
1250 0.95
3V-560 1420 0.98
SPZ-1320
1320 0.96
3V-600 1525 0.99
SPZ-1400
1400 0.98
3V-630 1600 1.00
SPZ-1500
1500 0.99
3V-670 1700 1.01
SPZ-1600
SPZ-1700
SPZ-1800
1600
1700
1800
1.00
1.01
1.02
3V-710
3V-750
3V-800
1805
1905
2030
L
1.02
1.03
1.04
SPZ-1900
1900 1.03
3V-850 2160 1.05
SPZ-2000
2000 1.04
3V-900 2285 1.07
SPZ-2120
2120 1.05
3V-950 2415 1.08
SPZ-2240
2240 1.06
3V-1000 2540 1.08
850 0.88
635 0.83
675 0.84
710 0.85
760 0.86
800 0.87
SPZ-2360
2360 1.07
3V-1060 2690 1.09
SPZ-2500
2500 1.08
3V-1120 2845 1.11
SPZ-2650
2650 1.09
3V-1180 2995 1.11
SPZ-2800
2800 1.10
3V-1250 3175 1.13
SPZ-3000
3000 1.11
3V-1320 3355 1.14
SPZ-3150
3150 1.12
3V-1400 3555 1.15
SPZ-3350
3350 1.13
SPZ-3550
3550 1.15
RMA Corr.
effectivefactor length C
L mm
The sizes printed in colour are available as
9J PowerBand ® .
SHC
6
Number of belts required =
Design kW
(A + B + C) x G x C
L
55
POWER RATINGS SUPER HC
®
MN / SUPER HC
®
SHC
6
56
C
Basic kW per belt
All values printed in italics are for use with Super HC
®
Moulded Notch construction only.
80 85 90 95 100 106 112 118 125 132 140 150 160 170 180 190 200
RPM of faster shaft
585
0.91
1.06
1.22
1.37
1.49
1.69
1.88
2.08
2.31
2.53
2.79
3.11
3.43
3.74
4.06
4.37
4.68
700
1.03
1.21
1.39
1.57
1.74
1.97
2.20
2.43
2.70
2.96
3.27
3.64
4.02
4.39
4.76
5.13
5.49
725
1.06
1.24
1.43
1.61
1.79
2.03
2.27
2.50
2.78
3.06
3.37
3.76
4.14
4.53
4.91
5.29
5.66
870
1.19
1.41
1.63
1.84
2.08
2.37
2.65
2.93
3.26
3.58
3.95
4.41
4.86
5.31
5.76
6.21
6.65
950
1.26
1.50
1.73
1.97
2.24
2.55
2.85
3.16
3.51
3.86
4.26
4.76
5.25
5.74
6.22
6.70
7.18
1160
1.43
1.72
2.00
2.27
2.64
3.01
3.37
3.74
4.16
4.58
5.06
5.65
6.24
6.82
7.39
7.96
8.53
1450
1.64
1.98
2.32
2.66
3.16
3.61
4.06
4.50
5.01
5.52
6.10
6.82
7.53
8.22
8.92
9.60 10.27
1750
1.83
2.23
2.63
3.03
3.66
4.19
4.72
5.24
5.84
6.44
7.12
7.95
8.77
9.58
10.38 11.16 11.93
2850
2.32
2.93
3.54
4.15
5.20
5.99
6.77
7.53
8.40
9.25 10.21 11.36 12.48 13.55
14.58 15.55 16.49
3450
2.49
3.22
3.93
4.65
5.84
6.73
7.61
8.47
9.44 10.38 11.42 12.66
13.83 14.93
15.95 16.89 17.75
100
0.24
0.27
0.30
0.33
0.32
0.36
0.40
0.43
0.48
0.52
0.57
0.63
0.69
0.76
0.82
0.88
0.94
200
0.41
0.47
0.53
0.59
0.59
0.66
0.74
0.81
0.89
0.97
1.07
1.19
1.30
1.42
1.54
1.65
1.77
300
0.56
0.65
0.73
0.81
0.84
0.95
1.05
1.16
1.28
1.40
1.54
1.71
1.88
2.05
2.22
2.39
2.56
400
0.69
0.80
0.91
1.02
1.08
1.22
1.35
1.49
1.65
1.81
1.99
2.22
2.44
2.66
2.88
3.10
3.32
500
0.82
0.95
1.08
1.21
1.31
1.48
1.64
1.81
2.01
2.20
2.43
2.70
2.98
3.25
3.52
3.79
4.06
600
0.93
1.08
1.24
1.40
1.52
1.73
1.93
2.13
2.36
2.59
2.85
3.18
3.50
3.83
4.15
4.47
4.79
700
1.03
1.21
1.39
1.57
1.74
1.97
2.20
2.43
2.70
2.96
3.27
3.64
4.02
4.39
4.76
5.13
5.49
800
1.13
1.33
1.53
1.73
1.94
2.20
2.47
2.73
3.03
3.33
3.67
4.10
4.52
4.94
5.35
5.77
6.18
900
1.22
1.44
1.67
1.89
2.14
2.43
2.73
3.02
3.35
3.69
4.07
4.54
5.01
5.47
5.94
6.40
6.85
1000
1.31
1.55
1.80
2.04
2.34
2.66
2.98
3.30
3.67
4.04
4.45
4.97
5.49
6.00
6.51
7.01
7.51
1100
1.39
1.66
1.92
2.19
2.53
2.88
3.23
3.58
3.98
4.38
4.83
5.40
5.96
6.51
7.06
7.61
8.15
1200
1.46
1.75
2.04
2.33
2.71
3.09
3.47
3.85
4.28
4.72
5.21
5.82
6.42
7.02
7.61
8.19
8.78
1300
1.54
1.85
2.16
2.46
2.90
3.30
3.71
4.11
4.58
5.04
5.57
6.22
6.87
7.51
8.14
8.77
9.39
1400
1.61
1.94
2.27
2.60
3.07
3.51
3.94
4.37
4.87
5.37
5.93
6.62
7.31
7.99
8.66
9.32
9.98
1500
1.67
2.03
2.38
2.72
3.25
3.71
4.17
4.63
5.16
5.68
6.28
7.01
7.74
8.46
9.17
9.87 10.56
1600
1700
1800
1900
1.74
1.80
1.86
1.91
2.11
2.19
2.27
2.34
2.48
2.58
2.68
2.77
2.85
2.97
3.09
3.20
3.42
3.58
3.74
3.90
3.91
4.10
4.29
4.47
4.39
4.61
4.82
5.03
4.88
5.12
5.36
5.59
A
5.44
5.71
5.98
6.24
5.99
6.29
6.59
6.88
6.62
6.95
7.28
7.60
7.39
7.77
8.13
8.49
8.16
8.57
8.97
8.92
9.36
9.80
9.36 10.22
9.66 10.40 11.12
10.14 10.91 11.66
10.61 11.41 12.19
11.06 11.89 12.70
2000
1.96
2.41
2.86
3.31
4.05
4.65
5.24
5.82
6.49
7.16
7.91
8.83
9.74 10.63
11.50 12.35 13.18
2100
2.01
2.48
2.95
3.42
4.20
4.82
5.44
6.04
6.74
7.43
8.21
9.17 10.10 11.02
11.92 12.80 13.65
2200
2.06
2.55
3.04
3.52
4.35
4.99
5.63
6.26
6.98
7.70
8.50
9.49 10.46 11.41
12.33 13.23 14.10
2300
2.10
2.62
3.12
3.63
4.49
5.16
5.82
6.47
7.22
7.96
8.79
9.81 10.80 11.78
12.72 13.64 14.53
2400
2.15
2.68
3.20
3.73
4.63
5.32
6.00
6.67
7.45
8.21
9.07 10.12 11.14 12.13
13.10 14.03 14.94
2500
2.19
2.74
3.28
3.82
4.77
5.48
6.18
6.87
7.67
8.46
9.34 10.41 11.46 12.47
13.46 14.41 15.32
2600
2.23
2.80
3.36
3.92
4.90
5.63
6.35
7.07
7.89
8.69
9.60 10.70 11.77 12.80
13.80 14.76 15.68
2700
2.27
2.85
3.44
4.01
5.02
5.78
6.52
7.26
8.10
8.92
9.85 10.97 12.06 13.11
14.12 15.09 16.02
2800
2.30
2.91
3.51
4.10
5.14
5.92
6.69
7.44
8.30
9.15 10.09 11.24 12.34 13.41
14.43 15.41 16.34
2900 2.34
2.96
3.58
4.19
5.26
6.06
6.84
7.61
8.50
9.36 10.32 11.49 12.61 13.69
14.72 15.70
16.63
3000
2.37
3.01
3.65
4.28
5.38
6.19
7.00
7.78
8.68
9.57 10.54 11.73 12.86 13.95
14.99 15.97
16.89
3100
2.40
3.06
3.71
4.36
5.49
6.32
7.14
7.95
8.87
9.76 10.76 11.96 13.11 14.20
15.24
16.21 17.13
3200
2.43
3.11
3.78
4.45
5.59
6.45
7.28
8.10
9.04
9.95 10.96 12.17 13.33 14.43
15.47 16.44 17.34
3300
2.46
3.15
3.84
4.53
5.69
6.57
7.42
8.25
9.21 10.13 11.15 12.38 13.54 14.64
15.68 16.64 17.53
3400
2.48
3.20
3.90
4.61
5.79
6.68
7.55
8.40
9.36 10.30 11.33 12.57 13.74
14.84
15.86 16.81 17.68
3500
2.51
3.24
3.96
4.68
5.88
6.79
7.67
8.53
9.51 10.46 11.51 12.75 13.92
15.01
16.03 16.96 17.81
3600
2.53
3.28
4.02
4.76
5.97
6.89
7.79
8.66
9.66 10.61 11.67 12.91
14.08 15.17
16.17 17.09 17.90
3700
2.55
3.32
4.08
4.83
6.05
6.99
7.90
8.79
9.79 10.76 11.81 13.07
14.23 15.31
16.30 17.18 17.97
3800
3.36
4.13
4.91
6.13
7.08
8.01
8.90
9.92 10.89 11.95 13.20
14.36 15.43
16.40 17.26 18.01
3900
4000
4100
3.39
3.43
3.46
4.19
4.24
4.29
4.98
5.04
5.11
6.21
6.28
6.34
7.17
7.25
7.33
8.10
8.20
8.28
9.01 10.03 11.01 12.08
9.11 10.14 11.12 12.19
9.21 10.24 11.23
13.33 14.48 15.53
13.44 14.58 15.61
12.29 13.53 14.66 15.67
16.47 17.30 18.01
16.52 17.32 17.98
16.55 17.30 17.92
4200
4300
4400
4500
3.49
4.34
4.39
4.43
4.48
5.18
5.24
5.31
5.37
6.40
6.45
6.50
6.55
7.40
7.46
7.52
7.57
8.36
8.43
8.50
8.56
9.29 10.33 11.32
9.37 10.41 11.40
9.44 10.48
9.50 10.55
12.38 13.61 14.72 15.70
12.46 13.68 14.76 15.72
11.47 12.52 13.73 14.79 15.71
11.53 12.58 13.76 14.80 15.68
16.55 17.26 17.82
16.53 17.19
16.48 17.08
16.40 16.95
4600
4700
4800
4900
5000
5.43
6.59
7.62
8.61
9.55
10.60 11.58 12.61 13.78 14.78 15.62
16.29
5.49
6.62
7.66
8.65
9.60
10.64 11.61 12.64 13.78 14.75 15.55
16.16
6.65
7.69
8.69
9.63
10.67 11.64 12.65 13.76 14.70 15.45
6.67
7.72
8.72
9.66 10.70 11.65 12.64 13.73 14.62 15.32
6.69
7.74
8.74
9.68 10.71 11.65 12.63 13.67 14.53 15.17
For speeds over 30 m/s we recommend that pulleys be dynamically balanced.
Additional kW per belt for belt life
SPA
6000 Hrs
d x RPM
382847
25000 Hrs
d x RPM
361664
12000 Hrs
0
POWER RATINGS SUPER HC
®
MN / SUPER HC
®
Additional kW per belt for speed ratio Arc of contact correction factor G
RPM of faster shaft
1 to
1.02
to
1.06
to
1.12
to
1.19
to
1.27
to
1.39
to
1.58
to
1.95 >3.38
to
1.01
1.05
1.11
1.18
1.26
1.38
1.57
1.94
3.38
585 0.00
0.02
0.05
0.09
0.13
0.15
0.18
0.20
0.22
0.23
700 0.00
0.02
0.06
0.11
0.15
0.18
0.21
0.24
0.26
0.28
725 0.00
0.02
0.07
0.11
0.16
0.19
0.22
0.25
0.27
0.29
870 0.00
0.03
0.08
0.14
0.19
0.23
0.27
0.30
0.33
0.35
950 0.00
0.03
0.09
0.15
0.20
0.25
0.29
0.33
0.36
0.38
1160 0.00
0.04
0.11
0.18
0.25
0.30
0.35
0.40
0.43
0.46
1450 0.00
0.05
0.13
0.23
0.31
0.38
0.44
0.50
0.54
0.58
1750 0.00
0.06
0.16
0.28
0.38
0.46
0.53
0.60
0.66
0.69
2850 0.00
0.09
0.26
0.45
0.61
0.74
0.87
0.98
1.07
1.13
3450 0.00
0.11
0.31
0.55
0.74
0.90
1.05
1.19
1.29
1.37
100 0.00
0.00
0.01
0.02
0.02
0.03
0.03
0.03
0.04
0.04
200 0.00
0.01
0.02
0.03
0.04
0.05
0.06
0.07
0.07
0.08
300 0.00
0.01
0.03
0.05
0.06
0.08
0.09
0.10
0.11
0.12
400 0.00
0.01
0.04
0.06
0.09
0.10
0.12
0.14
0.15
0.16
500 0.00
0.02
0.05
0.08
0.11
0.13
0.15
0.17
0.19
0.20
600 0.00
0.02
0.05
0.09
0.13
0.16
0.18
0.21
0.22
0.24
700 0.00
0.02
0.06
0.11
0.15
0.18
0.21
0.24
0.26
0.28
800 0.00
0.03
0.07
0.13
0.17
0.21
0.24
0.28
0.30
0.32
900 0.00
0.03
0.08
0.14
0.19
0.23
0.28
0.31
0.34
0.36
1000 0.00
0.03
0.09
0.16
0.22
0.26
0.31
0.34
0.37
0.40
1100 0.00
0.04
0.10
0.17
0.24
0.29
0.34
0.38
0.41
0.44
1200 0.00
0.04
0.11
0.19
0.26
0.31
0.37
0.41
0.45
0.48
1300
1400
1500
1600
0.00
0.00
0.00
0.00
0.04
0.05
0.05
0.05
0.12
0.13
0.14
0.15
0.21
0.22
0.24
0.25
B
0.28
0.30
0.32
0.34
0.34
0.37
0.39
0.42
0.40
0.43
0.46
0.49
0.45
0.48
0.52
0.55
0.49
0.52
0.56
0.60
0.52
0.56
0.60
0.64
1700 0.00
0.06
0.15
0.27
0.37
0.44
0.52
0.58
0.64
0.67
1800 0.00
0.06
0.16
0.28
0.39
0.47
0.55
0.62
0.67
0.71
1900 0.00
0.06
0.17
0.30
0.41
0.50
0.58
0.65
0.71
0.75
2000 0.00
0.07
0.18
0.32
0.43
0.52
0.61
0.69
0.75
0.79
2100 0.00
0.07
0.19
0.33
0.45
0.55
0.64
0.72
0.79
0.83
2200 0.00
0.07
0.20
0.35
0.47
0.57
0.67
0.76
0.82
0.87
2300 0.00
0.08
0.21
0.36
0.50
0.60
0.70
0.79
0.86
0.91
2400 0.00
0.08
0.22
0.38
0.52
0.63
0.73
0.83
0.90
0.95
2500 0.00
0.08
0.23
0.40
0.54
0.65
0.76
0.86
0.94
0.99
2600 0.00
0.09
0.24
0.41
0.56
0.68
0.79
0.89
0.97
1.03
2700 0.00
0.09
0.25
0.43
0.58
0.70
0.83
0.93
1.01
1.07
2800 0.00
0.09
0.25
0.44
0.60
0.73
0.86
0.96
1.05
1.11
2900 0.00
0.10
0.26
0.46
0.62
0.76
0.89
1.00
1.09
1.15
3000 0.00
0.10
0.27
0.47
0.65
0.78
0.92
1.03
1.12
1.19
3100 0.00
0.10
0.28
0.49
0.67
0.81
0.95
1.07
1.16
1.23
3200 0.00
0.11
0.29
0.51
0.69
0.84
0.98
1.10
1.20
1.27
3300 0.00
0.11
0.30
0.52
0.71
0.86
1.01
1.14
1.24
1.31
3400 0.00
0.11
0.31
0.54
0.73
0.89
1.04
1.17
1.27
1.35
3500 0.00
0.12
0.32
0.55
0.75
0.91
1.07
1.20
1.31
1.39
3600 0.00
0.12
0.33
0.57
0.78
0.94
1.10
1.24
1.35
1.43
3700 0.00
0.12
0.34
0.59
0.80
0.97
1.13
1.27
1.39
1.47
3800 0.00
0.13
0.34
0.60
0.82
0.99
1.16
1.31
1.42
1.51
3900 0.00
0.13
0.35
0.62
0.84
1.02
1.19
1.34
1.46
1.55
4000 0.00
0.13
0.36
0.63
0.86
1.04
1.22
1.38
1.50
1.59
4100 0.00
0.14
0.37
0.65
0.88
1.07
1.25
1.41
1.54
1.63
4200 0.00
0.14
0.38
0.66
0.90
1.10
1.28
1.44
1.57
1.67
4300 0.00
0.14
0.39
0.68
0.93
1.12
1.31
1.48
1.61
1.71
4400 0.00
0.15
0.40
0.70
0.95
1.15
1.34
1.51
1.65
1.75
4500 0.00
0.15
0.41
0.71
0.97
1.17
1.38
1.55
1.69
1.79
4600 0.00
0.15
0.42
0.73
0.99
1.20
1.41
1.58
1.72
1.83
4700 0.00
0.16
0.43
0.74
1.01
1.23
1.44
1.62
1.76
1.87
4800 0.00
0.16
0.44
0.76
1.03
1.25
1.47
1.65
1.80
1.91
4900 0.00
0.16
0.44
0.78
1.06
1.28
1.50
1.69
1.84
1.95
5000 0.00
0.17
0.45
0.79
1.08
1.30
1.53
1.72
1.87
1.98
D - d
A
Arc of contact on small pulley
(degrees)
0.00
0.10
180
174
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.00
1.10
1.20
1.30
1.40
1.50
169
163
157
151
145
139
G
113
106
99
91
83
0.91
0.89
0.87
0.85
0.82
0.80
0.77
0.73
0.70
0.65
1.00
0.99
0.97
0.96
0.94
0.93
Factor G
Belt length correction factor C
L
Belt ref.
ISO Corr.
datum factor length C
L mm
SPA-800 800 0.82
SPA-850
SPA-900
850 0.83
900 0.84
SPA-950 950 0.85
SPA-1000 1000 0.86
SPA-1060 1060 0.87
SPA-1120 1120 0.88
SPA-1180 1180 0.89
SPA-1250 1250 0.90
SPA-1320 1320 0.91
SPA-1400 1400 0.92
SPA-1500 1500 0.93
SPA-1600
SPA-1700
SPA-1800
C
SPA-1900 1900 0.97
SPA-2000 2000 0.98
SPA-2120 2120 0.99
SPA-2240 2240 1.00
L
SPA-2360 2360 1.01
SPA-2500 2500 1.02
SPA-2650 2650 1.03
SPA-2800 2800 1.04
SPA-3000 3000 1.05
SPA-3150 3150 1.06
SPA-3350 3350 1.07
SPA-3550 3550 1.08
SPA-3750 3750 1.09
SPA-4000 4000 1.10
SPA-4250 4250 1.11
SPA-4500 4500 1.12
SHC
6
Number of belts required =
Design kW
(A + B + C) x G x C
L
57
POWER RATINGS SUPER HC
®
MN / SUPER HC
®
Basic kW per belt or rib
SPB-SPB PowerBand
®
-5V-15J
All values printed in italics are for use with Super HC
®
Moulded Notch construction only.
112 118 125 132 140 150 160 170 180 190 200 212 224 236 250 265 280
RPM of faster shaft
585
2.10
2.39
2.73
3.07
3.46
3.93
4.35
4.86
5.37
5.88
6.38
6.98
7.58
8.17
8.86
9.60 10.33
700
2.38
2.73
3.13
3.52
3.98
4.53
5.08
5.68
6.28
6.87
7.46
8.17
8.87
9.57
10.37 11.23 12.09
725
2.44
2.80
3.21
3.62
4.08
4.66
5.23
5.85
6.47
7.08
7.69
8.42
9.15
9.86
10.70 11.58 12.46
870
2.77
3.19
3.67
4.15
4.70
5.37
6.10
6.83
7.56
8.28
9.00
9.85 10.70 11.54
12.52 13.55 14.57
950
2.94
3.39
3.91
4.43
5.02
5.75
6.57
7.36
8.15
8.92
9.70 10.62 11.53 12.44
13.48 14.59 15.69
1160
3.35
3.89
4.51
5.13
5.83
6.69
7.74
8.69
9.62 10.54 11.46 12.54 13.62 14.68
15.90 17.19 18.46
1450
3.85
4.50
5.25
6.00
6.85
7.89
9.25 10.38 11.50 12.61 13.70 14.99 16.26 17.51
18.94 20.43 21.89
1750
4.29
5.05
5.93
6.81
7.80
9.03 10.67 11.98 13.27 14.53 15.78 17.25 18.68 20.08
21.66 23.30 24.88
2850
5.37
6.50
7.81
9.09 10.54 12.31 14.46 16.20 17.86 19.44
20.95 22.64 24.21 25.65
27.15 28.55
3450
0.00
6.95
8.44
9.91 11.54 13.54 15.44
17.22 18.87 20.39 21.77 23.24
100
0.54
0.60
0.66
0.73
0.81
0.91
0.92
1.01
1.11
1.21
1.31
1.43
1.54
1.66
1.79
1.94
2.08
200
0.93
1.04
1.17
1.30
1.45
1.63
1.70
1.89
2.08
2.26
2.45
2.67
2.90
3.12
3.38
3.65
3.92
300
1.28
1.44
1.63
1.81
2.02
2.29
2.43
2.71
2.98
3.25
3.53
3.85
4.18
4.50
4.88
5.28
5.67
400
1.59
1.80
2.04
2.28
2.55
2.90
3.13
3.49
3.85
4.20
4.56
4.98
5.41
5.83
6.32
6.84
7.36
500
1.87
2.13
2.42
2.72
3.05
3.47
3.80
4.24
4.68
5.12
5.56
6.08
6.60
7.11
7.71
8.35
8.98
600
2.14
2.44
2.79
3.13
3.53
4.01
4.45
4.97
5.49
6.01
6.52
7.14
7.75
8.36
9.06
9.81 10.56
700
2.38
2.73
3.13
3.52
3.98
4.53
5.08
5.68
6.28
6.87
7.46
8.17
8.87
9.57
10.37 11.23 12.09
800
2.61
3.00
3.45
3.90
4.41
5.03
5.69
6.37
7.04
7.71
8.38
9.17
9.96 10.74
11.65 12.61 13.56
900
2.83
3.26
3.76
4.26
4.82
5.52
6.28
7.03
7.78
8.53
9.26 10.14 11.02 11.88
12.88 13.94 14.99
1000
3.04
3.51
4.06
4.60
5.22
5.98
6.86
7.68
8.50
9.32 10.13 11.09 12.04 12.99
14.08 15.23 16.37
1100
3.24
3.75
4.34
4.93
5.60
6.43
7.42
8.31
9.21 10.09 10.97 12.01 13.04 14.06
15.23 16.47 17.69
1200
3.42
3.97
4.62
5.25
5.97
6.87
7.96
8.93
9.89 10.84 11.78 12.90 14.00 15.09
16.34 17.67 18.97
1300
3.60
4.19
4.88
5.56
6.33
7.29
8.49
9.52 10.55 11.56 12.57 13.76 14.93 16.09
17.41 18.81 20.18
1400
3.76
4.40
5.13
5.85
6.68
7.69
9.00 10.10 11.19 12.27 13.33 14.59 15.83 17.04
18.44 19.91 21.34
1500
3.92
4.59
5.37
6.14
7.01
8.09
9.50 10.66 11.81 12.94 14.06 15.39 16.69 17.96
19.42 20.95 22.43
1600
1700
1800
1900
4.07
4.22
4.35
4.48
4.78
4.96
5.14
5.30
5.60
5.83
6.04
6.25
6.42
6.68
6.94
7.18
7.34
7.65
7.95
8.24
8.47
A
20.35 21.93 23.46
21.24 22.86 24.43
22.07 23.73 25.32
22.85 24.53 26.14
2000
4.60
5.46
6.44
7.42
8.53
9.89 11.73 13.17 14.58 15.96 17.31 18.89 20.42 21.91
23.57 25.27 26.89
2100
4.72
5.61
6.63
7.65
8.80 10.21 12.12 13.61 15.07 16.49 17.87 19.49 21.05 22.55
24.23 25.94
27.55
2200
4.83
5.75
6.82
7.87
9.06 10.53 12.50 14.03 15.53 16.98 18.40 20.04 21.63 23.15
24.84
26.55 28.14
2300
4.93
5.88
6.99
8.08
9.31 10.83 12.86 14.43 15.96 17.45 18.89 20.56 22.16 23.69
25.38 27.07 28.64
2400
5.02
6.01
7.16
8.29
9.56 11.13 13.19 14.80 16.37 17.88 19.35 21.04 22.65 24.18
25.86 27.53 29.05
2500
5.11
6.13
7.31
8.48
9.79 11.41 13.51 15.16 16.75 18.29 19.77 21.47 23.09
24.61
26.27 27.90 29.36
2600
5.19
6.25
7.47
8.67 10.02 11.68 13.81 15.48 17.10 18.66 20.15 21.86
23.47 24.99
26.61 28.19 29.59
2700
5.27
6.36
7.61
8.84 10.23 11.94 14.09 15.79 17.43 19.00 20.50 22.21
23.81 25.30
26.89 28.40 29.71
2800
5.34
6.46
7.74
9.01 10.44 12.19 14.34 16.07 17.72 19.30 20.81
22.51 24.09 25.55
27.08 28.52
2900
5.40
6.55
7.87
9.17 10.64 12.43 14.58 16.32 17.99 19.57
21.07 22.76 24.32 25.73
27.21
3000
5.46
6.64
7.99
9.32 10.82 12.65 14.79 16.55 18.22 19.81
21.30 22.96 24.49 25.85
27.25
3100
6.72
8.10
9.47 11.00 12.87 14.97 16.74 18.42
20.00 21.48 23.12 24.59 25.91
3200
3300
6.79
8.21
8.31
9.60 11.17 13.08 15.14 16.92
9.73 11.33 13.27 15.28 17.06
18.59 20.16 21.62 23.22 24.64 25.89
18.73 20.28 21.71 23.27 24.63
3400
3500
3600
8.40
9.85 11.47 13.45 15.39
9.96 11.61 13.62 15.49
11.74 13.78
17.17 18.83 20.36 21.76 23.26 24.55
17.26 18.90 20.40 21.76 23.20
15.55 17.31 18.93 20.40 21.71 23.08
3700
3800
3900
13.93
15.59 17.33 18.92 20.35 21.62
15.60 17.32 18.88 20.26 21.47
15.58 17.28 18.79 20.13
SHC
6
58
For speeds over 30 m/s we recommend that pulleys be dynamically balanced.
Additional kW per belt for belt life
C
25000 Hrs
d x RPM
228728
12000 Hrs
0
6000 Hrs
d x RPM
242248
POWER RATINGS SUPER HC
®
MN / SUPER HC
®
Additional kW per belt or rib for speed ratio Arc of contact correction factor G
RPM of faster shaft
1 to
1.02
to
1.06
to
1.12
to
1.19
to
1.27
to
1.39
to
1.58
to
1.95 >3.38
to
1.01
1.05
1.11
1.18
1.26
1.38
1.57
1.94
3.38
585 0.00
0.04
0.12
0.20
0.28
0.34
0.39
0.44
0.48
0.51
700 0.00
0.05
0.14
0.24
0.33
0.40
0.47
0.53
0.58
0.61
725 0.00
0.05
0.14
0.25
0.34
0.42
0.49
0.55
0.60
0.63
870 0.00
0.06
0.17
0.30
0.41
0.50
0.59
0.66
0.72
0.76
950 0.00
0.07
0.19
0.33
0.45
0.55
0.64
0.72
0.78
0.83
1160 0.00
0.09
0.23
0.40
0.55
0.67
0.78
0.88
0.96
1.01
1450 0.00
0.11
0.29
0.50
0.69
0.83
0.98
1.10
1.20
1.27
1750 0.00
0.13
0.35
0.61
0.83
1.01
1.18
1.32
1.44
1.53
2850 0.00
0.21
0.57
0.99
1.35
1.64
1.92
2.16
2.35
2.49
3450 0.00
0.25
0.69
1.20
1.63
1.98
2.32
2.61
2.85
3.01
100 0.00
0.01
0.02
0.03
0.05
0.06
0.07
0.08
0.08
0.09
200 0.00
0.01
0.04
0.07
0.09
0.11
0.13
0.15
0.16
0.17
300 0.00
0.02
0.06
0.10
0.14
0.17
0.20
0.23
0.25
0.26
400 0.00
0.03
0.08
0.14
0.19
0.23
0.27
0.30
0.33
0.35
500 0.00
0.04
0.10
0.17
0.24
0.29
0.34
0.38
0.41
0.44
600 0.00
0.04
0.12
0.21
0.28
0.34
0.40
0.45
0.49
0.52
700 0.00
0.05
0.14
0.24
0.33
0.40
0.47
0.53
0.58
0.61
800 0.00
0.06
0.16
0.28
0.38
0.46
0.54
0.61
0.66
0.70
900 0.00
0.07
0.18
0.31
0.43
0.52
0.61
0.68
0.74
0.79
1000 0.00
0.07
0.20
0.35
0.47
0.57
0.67
0.76
0.82
0.87
1100 0.00
0.08
0.22
0.38
0.52
0.63
0.74
0.83
0.91
0.96
1200 0.00
0.09
0.24
0.42
0.57
0.69
0.81
0.91
0.99
1.05
1300
1400
1500
1600
0.00
0.00
0.00
0.00
0.10
0.10
0.11
0.12
0.26
0.28
0.30
0.32
0.45
0.49
0.52
0.56
B
0.62
0.66
0.71
0.76
0.75
0.80
0.86
0.92
0.87
0.94
1.01
1.08
0.98
1.06
1.14
1.21
1.07
1.15
1.24
1.32
1.14
1.22
1.31
1.40
1700 0.00
0.12
0.34
0.59
0.81
0.98
1.14
1.29
1.40
1.49
1800 0.00
0.13
0.36
0.63
0.85
1.03
1.21
1.36
1.48
1.57
1900 0.00
0.14
0.38
0.66
0.90
1.09
1.28
1.44
1.57
1.66
2000 0.00
0.15
0.40
0.70
0.95
1.15
1.35
1.51
1.65
1.75
2100 0.00
0.15
0.42
0.73
1.00
1.21
1.41
1.59
1.73
1.83
2200 0.00
0.16
0.44
0.77
1.04
1.26
1.48
1.67
1.81
1.92
2300 0.00
0.17
0.46
0.80
1.09
1.32
1.55
1.74
1.90
2.01
2400 0.00
0.18
0.48
0.84
1.14
1.38
1.61
1.82
1.98
2.10
2500 0.00
0.18
0.50
0.87
1.18
1.44
1.68
1.89
2.06
2.18
2600 0.00
0.19
0.52
0.91
1.23
1.49
1.75
1.97
2.14
2.27
2700 0.00
0.20
0.54
0.94
1.28
1.55
1.82
2.04
2.23
2.36
2800 0.00
0.21
0.56
0.97
1.33
1.61
1.88
2.12
2.31
2.45
2900 0.00
0.21
0.58
1.01
1.37
1.67
1.95
2.20
2.39
2.53
3000 0.00
0.22
0.60
1.04
1.42
1.72
2.02
2.27
2.47
2.62
3100 0.00
0.23
0.62
1.08
1.47
1.78
2.09
2.35
2.56
2.71
3200 0.00
0.23
0.64
1.11
1.52
1.84
2.15
2.42
2.64
2.80
3300 0.00
0.24
0.66
1.15
1.56
1.90
2.22
2.50
2.72
2.88
3400 0.00
0.25
0.68
1.18
1.61
1.95
2.29
2.57
2.80
2.97
3500 0.00
0.26
0.70
1.22
1.66
2.01
2.35
2.65
2.89
3.06
3600 0.00
0.26
0.72
1.25
1.71
2.07
2.42
2.73
2.97
3.14
3700 0.00
0.27
0.74
1.29
1.75
2.13
2.49
2.80
3.05
3.23
3800 0.00
0.28
0.76
1.32
1.80
2.18
2.56
2.88
3.13
3.32
3900 0.00
0.29
0.78
1.36
1.85
2.24
2.62
2.95
3.22
3.41
D - d
A
Arc of contact on small pulley
(degrees)
0.00
0.10
180
174
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.00
1.10
1.20
1.30
1.40
1.50
169
163
157
151
145
139
G
113
106
99
91
83
0.91
0.89
0.87
0.85
0.82
0.80
0.77
0.73
0.70
0.65
1.00
0.99
0.97
0.96
0.94
0.93
Factor G
Belt length correction factor C
L
Belt ref.
Belt ref.
ISO Corr.
datum factor length C
L mm
SPB-1250
1250 0.85 5V-500
SPB-1320
1320 0.86 5V-530
SPB-1400
1400 0.87 5V-560
SPB-1500
1500 0.88 5V-600
SPB-1600
1600 0.89 5V-630
SPB-1700
1700 0.90 5V-670
SPB-1800
1800 0.91 5V-710
SPB-1900
1900 0.92 5V-750
SPB-2000
2000 0.93 5V-800
SPB-2120
2120 0.93 5V-850
SPB-2240
2240 0.94 5V-900
SPB-2360
2360 0.95 5V-950
SPB-2500
C
2540 0.96
1805 0.91
1905 0.92
2030 0.93
2160 0.94
2285 0.95
2415 0.96
SPB-2650
2650 0.97 5V-1060 2690 0.97
SPB-2800
2800 0.98 5V-1120 2845 0.98
SPB-3000
3000 0.99 5V-1180 2995 0.99
SPB-3150
3150 1.00 5V-1250 3175 1.00
SPB-3350
3350 1.01 5V-1320 3355 1.01
SPB-3550
SPB-3750
SPB-4000
3550 1.02 5V-1400
3750 1.03 5V-1500
4000 1.04 5V-1600
L
3555 1.02
3810 1.03
4065 1.04
SPB-4250
4250 1.05 5V-1700 4320 1.05
SPB-4500
4500 1.06 5V-1800 4570 1.06
SPB-4750
4750 1.07 5V-1900 4825 1.07
SPB-5000
5000 1.07 5V-2000 5080 1.08
1700 0.90
1270 0.85
1345 0.86
1420 0.87
1525 0.88
1600 0.89
SPB-5300
5300 1.08 5V-2120 5385 1.09
SPB-5600
5600 1.09 5V-2240 5690 1.09
SPB-6000
6000 1.10 5V-2360 5995 1.10
SPB-6300
6300 1.11 5V-2500 6350 1.11
SPB-6700
6700 1.12 5V-2650 6730 1.12
SPB-7100
7100 1.13 5V-2800 7110 1.13
SPB-7500
7500 1.14 5V-3000 7620 1.14
SPB-8000
8000 1.15 5V-3150 8000 1.15
5V-3550 9015 1.17
RMA Corr.
effectivefactor length C
L mm
SHC
6
The sizes printed in colour are available as
15J PowerBand
®
.
Number of belts required =
Design kW
(A + B + C) x G x C
L
59
POWER RATINGS SUPER HC
®
MN / SUPER HC
®
SHC
6
60
C
SPC-SPC PowerBand
® Basic kW per belt
All values printed in italics are for use with Super HC
®
Moulded Notch construction only.
180 190 200 224 236 250 265 280 300 315 335 355 375 400 425 450 475
RPM of faster shaft
585
7.24
8.01
8.78 10.59 11.49
12.4
13.8
15.1
16.9
18.2
20.0
21.7
23.4
25.5
27.6
29.7
31.8
700
8.23
9.13 10.02 12.13 13.17
14.4
16.0
17.6
19.7
21.2
23.2
25.2
27.2
29.7
32.1
34.5
36.8
725
8.43
9.36 10.28 12.45 13.53
14.9
16.5
18.1
20.2
21.8
23.9
26.0
28.0
30.6
33.0
35.5
37.9
870
9.57 10.65 11.72 14.24 15.49
17.2
19.2
21.0
23.5
25.3
27.8
30.1
32.5
35.3
38.2
40.9
43.6
950 10.16 11.32 12.46 15.18 16.51 18.5
20.5
22.6
25.2
27.2
29.8
32.3
34.8
37.8
40.7
43.6
46.4
1160 11.57 12.93 14.28 17.46 19.02 21.6
24.0
26.3
29.4
31.6
34.5
37.4
40.2
43.5
46.7
49.8
52.7
1450 13.26 14.89 16.49 20.25 22.09 25.3
28.0
30.7
34.2
36.7
40.0
43.1
46.0
49.5
52.7
55.7
58.4
1750 14.73 16.59 18.43 22.73 24.81 28.3
31.3
34.2
37.9
40.6
43.9
47.0
49.8
53.0
55.7
2850 31.1
33.6
3450
1.4
2.6
3.8
4.9
1.5
1.7
2.9
3.1
4.1
4.5
5.4
5.9
1.9
2.0
3.5
3.8
5.0
5.4
6.5
7.0
2.2
4.1
5.9
7.7
2.4
4.4
6.4
8.4
2.5
2.8
4.8
5.2
3.0
3.2
5.7
6.1
3.4
6.5
6.9
7.6
8.2
8.8
9.4
9.0
9.8
10.7
11.5
12.3
50
1.03
1.12
1.21
1.42
1.52
100
1.83
2.00
2.16
2.55
2.75
150
2.54
2.78
3.01
3.57
3.85
200
3.20
3.50
3.81
4.53
4.88
300
4.39
4.82
5.25
6.28
6.79
350
4.94
5.43
5.93
7.10
7.68
400
5.46
6.02
6.58
7.89
8.54
450
5.97
6.58
7.20
8.65
9.37
5.9
7.0
8.0
8.9
6.5
7.2
7.7
8.4
250
3.81
4.18
4.55
5.42
5.86
A
8.0
8.6
9.4
10.2
11.0
12.0
13.0
14.0
15.0
9.4
10.1
11.1
12.0
13.0
14.2
15.4
16.5
17.7
8.8
9.7
10.8
11.6
12.7
13.8
14.9
16.3
17.6
19.0
20.3
9.9
10.9
12.1
13.1
14.3
15.6
16.8
18.3
19.9
21.4
22.9
9.9
11.0
12.0
13.4
14.5
15.9
17.3
18.6
20.3
22.0
23.7
25.4
500
6.45
7.13
7.80
9.39 10.18
10.8
12.0
13.2
14.7
15.9
17.4
18.9
20.4
22.3
24.2
26.0
27.8
550
6.92
7.65
8.38 10.10 10.96
11.8
13.1
14.3
16.0
17.3
18.9
20.6
22.2
24.2
26.2
28.2
30.2
600
7.37
8.16
8.94 10.80 11.72
12.7
14.1
15.4
17.2
18.6
20.4
22.2
23.9
26.1
28.2
30.4
32.4
650
7.81
8.65
9.49 11.47 12.45
13.6
15.0
16.5
18.5
19.9
21.8
23.7
25.6
27.9
30.2
32.4
34.7
700
8.23
9.13 10.02 12.13 13.17
14.4
16.0
17.6
19.7
21.2
23.2
25.2
27.2
29.7
32.1
34.5
36.8
750
8.64
9.59 10.54 12.77 13.87
15.3
17.0
18.6
20.8
22.5
24.6
26.7
28.8
31.4
34.0
36.4
38.9
800
9.03 10.04 11.04 13.40 14.56
16.1
17.9
19.6
22.0
23.7
25.9
28.2
30.4
33.1
35.7
38.3
40.9
850
9.42 10.48 11.53 14.00 15.23
16.9
18.8
20.6
23.1
24.9
27.3
29.6
31.9
34.7
37.5
40.2
42.8
900
9.79 10.90 12.00 14.60 15.88
17.7
19.7
21.6
24.2
26.0
28.5
31.0
33.4
36.3
39.1
41.9
44.6
950 10.16 11.32 12.46 15.18 16.51 18.5
20.5
22.6
25.2
27.2
29.8
32.3
34.8
37.8
40.7
43.6
46.4
1000 10.51 11.72 12.92 15.74 17.13 19.3
21.4
23.5
26.3
28.3
31.0
33.6
36.1
39.3
42.3
45.2
48.1
1050 10.85 12.11 13.35 16.29 17.74 20.0
22.2
24.4
27.3
29.4
32.1
34.8
37.5
40.7
43.8
46.7
49.6
1100 11.18 12.49 13.78 16.83 18.33 20.7
23.0
25.3
28.2
30.4
33.2
36.0
38.7
42.0
45.2
48.2
51.1
1150 11.51 12.86 14.20 17.36 18.91 21.4
23.8
26.1
29.2
31.4
34.3
37.2
39.9
43.3
46.5
49.5
52.5
1200 11.82 13.22 14.61 17.87 19.47 22.1
24.6
27.0
30.1
32.4
35.4
38.3
41.1
44.5
47.7
50.8
53.7
1250 12.13 13.57 15.00 18.37 20.02 22.8
25.3
27.8
31.0
33.3
36.4
39.3
42.2
45.6
48.9
52.0
54.9
1300 12.42 13.92 15.39 18.86 20.56 23.4
26.0
28.5
31.8
34.2
37.3
40.3
43.2
46.7
50.0
53.1
55.9
1350 12.71 14.25 15.77 19.34 21.09 24.1
26.7
29.3
32.6
35.1
38.3
41.3
44.2
47.7
51.0
54.0
56.9
1400 12.99 14.57 16.13 19.80 21.60 24.7
27.4
30.0
33.4
35.9
39.1
42.2
45.2
48.6
51.9
54.9
57.7
1450 13.26 14.89 16.49 20.25 22.09 25.3
28.0
30.7
34.2
36.7
40.0
43.1
46.0
49.5
52.7
55.7
58.4
1500 13.53 15.19 16.84 20.70 22.58 25.8
28.6
31.4
34.9
37.5
40.7
43.9
46.8
50.3
53.5
56.4
58.9
1550 13.78 15.49 17.18 21.13 23.05 26.4
29.2
32.0
35.6
38.2
41.5
44.6
47.6
51.0
54.1
56.9
59.4
1600 14.03 15.78 17.50 21.54 23.51 26.9
29.8
32.6
36.2
38.8
42.1
45.3
48.2
51.6
54.7
57.4
59.7
1650 14.27 16.06 17.82 21.95 23.96 27.4
30.3
33.2
36.8
39.5
42.8
45.9
48.8
52.1
55.1
57.7
1700 14.50 16.33 18.13 22.34 24.39 27.8
30.8
33.7
37.4
40.0
43.4
46.5
49.3
52.6
55.4
1750 14.73 16.59 18.43 22.73 24.81 28.3
31.3
34.2
37.9
40.6
43.9
47.0
49.8
53.0
55.7
1800 14.95 16.85 18.72 23.10 25.22 28.7
31.8
34.7
38.4
41.1
44.4
47.4
50.2
53.2
1850 15.15 17.10 19.00 23.46 25.62 29.1
32.2
35.1
38.9
41.5
44.8
47.8
50.5
53.4
1900 15.36 17.33 19.28 23.81 26.00 29.5
32.6
35.5
39.3
41.9
45.1
48.1
50.7
53.5
1950 15.55 17.56 19.54 24.15 26.37 29.8
32.9
35.9
39.6
42.2
45.4
48.3
50.8
2000 15.74 17.78 19.80 24.47 26.73 30.1
33.3
36.3
40.0
42.5
45.7
48.5
50.9
2050 15.92 18.00 20.04 24.79 27.08 30.4
33.6
36.6
40.2
42.8
45.8
48.5
2100 16.09 18.20 20.28 25.09 27.41 30.7
33.9
36.8
40.5
43.0
46.0
48.6
2150 16.25 18.40 20.50 25.38 27.73 30.9
34.1
37.0
40.6
43.1
46.0
48.5
2200 16.41 18.59 20.72 25.66 28.03 31.2
34.3
37.2
40.8
43.2
46.0
2250 16.56 18.77 20.93 25.93 28.33 31.3
34.5
37.4
40.9
43.2
45.9
2300 16.70 18.94 21.13 26.19 28.61 31.5
34.6
37.5
40.9
43.2
2350 16.84 19.10 21.32 26.43 28.87 31.6
34.7
37.5
40.9
43.1
2400
19.26 21.50 26.66 29.13
31.7
34.8
37.6
40.8
42.9
2450
2500
21.67 26.88
29.37
31.8
34.8
37.5
40.7
21.84 27.09
29.59
31.8
34.8
37.5
40.6
For speeds over 30 m/s we recommend that pulleys be dynamically balanced.
Additional kW per belt for belt life
6000 Hrs
d x RPM
135630
25000 Hrs
d x RPM
128090
12000 Hrs
0
POWER RATINGS SUPER HC
®
MN / SUPER HC
®
Additional kW per belt for speed ratio Arc of contact correction factor G
RPM of faster shaft
1 to
1.02
to
1.06
to
1.12
to
1.19
to
1.27
to
1.39
to
1.58
to
1.95 >3.38
to
1.01
1.05
1.11
1.18
1.26
1.38
1.57
1.94
3.38
585 0.00
0.12
0.32
0.55
0.75
0.91
1.07
1.20
1.31
1.39
700 0.00
0.14
0.38
0.66
0.90
1.09
1.28
1.44
1.57
1.66
725 0.00
0.14
0.39
0.69
0.93
1.13
1.32
1.49
1.62
1.72
870 0.00
0.17
0.47
0.82
1.12
1.36
1.59
1.79
1.95
2.06
950 0.00
0.19
0.52
0.90
1.22
1.48
1.74
1.95
2.13
2.25
1160 0.00
0.23
0.63
1.10
1.49
1.81
2.12
2.38
2.60
2.75
1450 0.00
0.29
0.79
1.37
1.87
2.26
2.65
2.98
3.25
3.44
1750 0.00
0.35
0.95
1.65
2.25
2.73
3.20
3.60
3.92
4.15
2850 0.00
0.57
1.55
2.69
3.67
4.44
5.21
5.86
6.38
6.76
3450 0.00
0.69
1.87
3.26
4.44
5.38
6.30
7.09
7.73
8.18
50 0.00
0.01
0.03
0.05
0.06
0.08
0.09
0.10
0.11
0.12
100 0.00
0.02
0.05
0.09
0.13
0.16
0.18
0.21
0.22
0.24
150 0.00
0.03
0.08
0.14
0.19
0.23
0.27
0.31
0.34
0.36
200 0.00
0.04
0.11
0.19
0.26
0.31
0.37
0.41
0.45
0.47
250 0.00
0.05
0.14
0.24
0.32
0.39
0.46
0.51
0.56
0.59
300 0.00
0.06
0.16
0.28
0.39
0.47
0.55
0.62
0.67
0.71
350 0.00
0.07
0.19
0.33
0.45
0.55
0.64
0.72
0.78
0.83
400 0.00
0.08
0.22
0.38
0.51
0.62
0.73
0.82
0.90
0.95
450 0.00
0.09
0.24
0.43
0.58
0.70
0.82
0.93
1.01
1.07
500 0.00
0.10
0.27
0.47
0.64
0.78
0.91
1.03
1.12
1.19
550 0.00
0.11
0.30
0.52
0.71
0.86
1.00
1.13
1.23
1.30
600 0.00
0.12
0.33
0.57
0.77
0.94
1.10
1.23
1.34
1.42
650
700
750
800
0.00
0.00
0.00
0.00
0.13
0.14
0.15
0.16
0.35
0.38
0.41
0.43
0.61
0.66
0.71
0.76
B
0.84
0.90
0.97
1.03
1.01
1.09
1.17
1.25
1.19
1.28
1.37
1.46
1.34
1.44
1.54
1.64
1.46
1.57
1.68
1.79
1.54
1.66
1.78
1.90
850 0.00
0.17
0.46
0.80
1.09
1.33
1.55
1.75
1.90
2.02
900 0.00
0.18
0.49
0.85
1.16
1.40
1.64
1.85
2.02
2.13
950 0.00
0.19
0.52
0.90
1.22
1.48
1.74
1.95
2.13
2.25
1000 0.00
0.20
0.54
0.95
1.29
1.56
1.83
2.06
2.24
2.37
1050 0.00
0.21
0.57
0.99
1.35
1.64
1.92
2.16
2.35
2.49
1100 0.00
0.22
0.60
1.04
1.42
1.72
2.01
2.26
2.46
2.61
1150 0.00
0.23
0.62
1.09
1.48
1.79
2.10
2.36
2.58
2.73
1200 0.00
0.24
0.65
1.13
1.54
1.87
2.19
2.47
2.69
2.85
1250 0.00
0.25
0.68
1.18
1.61
1.95
2.28
2.57
2.80
2.97
1300 0.00
0.26
0.71
1.23
1.67
2.03
2.37
2.67
2.91
3.08
1350 0.00
0.27
0.73
1.28
1.74
2.11
2.47
2.78
3.02
3.20
1400 0.00
0.28
0.76
1.32
1.80
2.18
2.56
2.88
3.14
3.32
1450 0.00
0.29
0.79
1.37
1.87
2.26
2.65
2.98
3.25
3.44
1500 0.00
0.30
0.81
1.42
1.93
2.34
2.74
3.08
3.36
3.56
1550 0.00
0.31
0.84
1.47
1.99
2.42
2.83
3.19
3.47
3.68
1600 0.00
0.32
0.87
1.51
2.06
2.50
2.92
3.29
3.58
3.80
1650 0.00
0.33
0.89
1.56
2.12
2.57
3.01
3.39
3.70
3.91
1700 0.00
0.34
0.92
1.61
2.19
2.65
3.11
3.49
3.81
4.03
1750 0.00
0.35
0.95
1.65
2.25
2.73
3.20
3.60
3.92
4.15
1800 0.00
0.36
0.98
1.70
2.32
2.81
3.29
3.70
4.03
4.27
1850 0.00
0.37
1.00
1.75
2.38
2.89
3.38
3.80
4.14
4.39
1900 0.00
0.38
1.03
1.80
2.44
2.96
3.47
3.91
4.25
4.51
1950 0.00
0.39
1.06
1.84
2.51
3.04
3.56
4.01
4.37
4.63
2000 0.00
0.40
1.08
1.89
2.57
3.12
3.65
4.11
4.48
4.74
2050 0.00
0.41
1.11
1.94
2.64
3.20
3.74
4.21
4.59
4.86
2100 0.00
0.42
1.14
1.99
2.70
3.28
3.84
4.32
4.70
4.98
2150 0.00
0.43
1.17
2.03
2.77
3.35
3.93
4.42
4.81
5.10
2200 0.00
0.44
1.19
2.08
2.83
3.43
4.02
4.52
4.93
5.22
2250 0.00
0.45
1.22
2.13
2.90
3.51
4.11
4.63
5.04
5.34
2300 0.00
0.46
1.25
2.17
2.96
3.59
4.20
4.73
5.15
5.46
2350 0.00
0.47
1.27
2.22
3.02
3.66
4.29
4.83
5.26
5.57
2400 0.00
0.48
1.30
2.27
3.09
3.74
4.38
4.93
5.37
5.69
2450 0.00
0.49
1.33
2.32
3.15
3.82
4.48
5.04
5.49
5.81
2500 0.00
0.50
1.36
2.36
3.22
3.90
4.57
5.14
5.60
5.93
D - d
A
Arc of contact on small pulley
(degrees)
0.00
0.10
180
174
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.00
1.10
1.20
1.30
1.40
1.50
169
163
157
151
145
139
G
113
106
99
91
83
0.91
0.89
0.87
0.85
0.82
0.80
0.77
0.73
0.70
0.65
1.00
0.99
0.97
0.96
0.94
0.93
Factor G
Belt length correction factor C
L
Belt ref.
ISO Corr.
datum factor length C
L mm
SPC-2000 2000 0.86
SPC-2120 2120 0.87
SPC-2240 2240 0.88
SPC-2360 2360 0.89
SPC-2500 2500 0.90
SPC-2650 2650 0.90
SPC-2800 2800 0.91
SPC-3000 3000 0.92
SPC-3150 3150 0.93
SPC-3350 3350 0.94
SPC-3550 3550 0.95
SPC-3750 3750 0.96
SPC-4000
SPC-4250
SPC-4500
C
SPC-4750 4750 0.99
SPC-5000 5000 1.00
SPC-5300 5300 1.01
SPC-5600 5600 1.02
L
SPC-6000 6000 1.03
SPC-6300 6300 1.03
SPC-6700 6700 1.04
SPC-7100 7100 1.05
SPC-7500 7500 1.06
SPC-8000 8000 1.07
SPC-8500 8500 1.08
SPC-9000 9000 1.09
SHC
6
Number of belts required =
Design kW
(A + B + C) x G x C
L
61
POWER RATINGS SUPER HC
®
Basic kW per belt or rib
SHC
6
315 335 355 375 400 425 450 475 500 530 560 600 630 670 710 750 800
RPM of faster shaft
585 21.5
24.0
26.4
28.9
31.9
34.9
37.8
40.8
43.6
47.0
50.4
54.8
58.0
62.2
66.2
70.2
75.0
700 24.9
27.8
30.6
33.5
36.9
40.4
43.8
47.1
50.3
54.2
57.9
62.8
66.3
70.9
75.3
79.4
84.4
725 25.6
28.6
31.5
34.4
38.0
41.5
45.0
48.4
51.7
55.6
59.5
64.4
68.0
72.6
77.0
81.2
86.1
870 29.5
32.9
36.3
39.6
43.7
47.7
51.6
55.4
59.1
63.4
67.5
72.7
76.5
81.2
85.6
89.6
950 31.5
35.2
38.8
42.3
46.6
50.8
54.9
58.8
62.6
67.1
71.3
76.5
80.3
84.8
1160 36.2
40.4
44.5
48.4
53.2
57.7
62.1
66.2
70.1
74.5
78.6
1450 41.3
45.9
50.3
54.5
59.5
64.1
68.2
1750 44.6
49.3
53.6
57.6
2850
3450
2.7
5.1
3.0
3.2
5.6
6.0
3.5
6.7
3.9
7.3
4.2
4.5
7.9
8.5
4.8
5.2
5.5
6.0
6.4
6.9
7.4
7.9
8.5
9.1
9.8
10.5
11.5
12.2
13.1
14.0
15.0
16.1
7.3
8.0
8.7
9.6
10.5
11.4
12.3
13.1
14.2
15.2
16.6
17.6
19.0
20.4
21.7
23.4
9.4
10.4
11.3
12.5
13.6
14.8
15.9
17.1
18.4
19.8
21.6
22.9
24.7
26.5
28.2
30.4
50 2.5
100 4.6
150 6.6
200 8.5
250 10.3
11.5
12.6
13.8
15.2
16.6
18.1
19.5
20.9
22.5
24.2
26.4
28.0
30.2
32.3
34.5
37.1
300 12.1
13.5
14.9
16.2
17.9
19.6
21.2
22.9
24.5
26.5
28.5
31.0
33.0
35.5
38.0
40.5
43.6
350 13.9
15.4
17.0
18.6
20.5
22.4
24.3
26.2
28.1
30.4
32.6
35.6
37.8
40.6
43.5
46.3
49.8
400 15.6
17.3
19.1
20.9
23.1
25.2
27.4
29.5
31.6
34.1
36.6
39.9
42.4
45.6
48.8
51.9
55.7
450 17.2
19.2
21.2
23.1
25.5
27.9
30.3
32.7
35.0
37.8
40.5
44.2
46.8
50.3
53.8
57.2
61.4
500 18.8
21.0
23.2
25.3
27.9
30.6
33.2
35.7
38.3
41.3
44.3
48.2
51.1
54.9
58.6
62.3
66.7
550 20.4
22.8
25.1
27.4
30.3
33.1
35.9
38.7
41.5
44.7
47.9
52.1
55.2
59.2
63.2
67.0
71.7
600 21.9
24.5
27.0
29.5
32.6
35.6
38.6
41.6
44.5
48.0
51.4
55.9
59.1
63.4
67.5
71.5
76.3
650 23.4
26.1
28.8
31.5
34.8
38.0
41.2
44.4
47.5
51.2
54.8
59.4
62.8
67.3
71.5
75.6
80.5
700 24.9
27.8
30.6
33.5
36.9
40.4
43.8
47.1
50.3
54.2
57.9
62.8
66.3
70.9
75.3
79.4
84.4
750 26.3
29.3
32.4
35.4
39.0
42.6
46.2
49.7
53.1
57.1
61.0
66.0
69.6
74.3
78.7
82.9
87.8
800
850
900
950
27.7
29.0
30.3
31.5
30.9
32.4
33.8
35.2
34.1
35.7
37.3
38.8
37.2
39.0
40.7
42.3
41.0
43.0
44.8
46.6
44.8
46.9
48.9
50.8
48.5
50.7
52.9
54.9
52.1
54.5
56.7
58.8
A
55.7
58.1
60.5
62.6
59.8
62.4
64.8
67.1
63.8
66.5
69.0
71.3
68.9
71.7
74.2
76.5
72.6
75.4
78.0
80.3
77.4
80.2
82.7
84.8
81.8
84.6
87.0
86.0
88.6
90.8
1000 32.7
36.5
40.2
43.9
48.3
52.6
56.8
60.8
64.7
69.1
73.4
78.6
82.2
1050 33.9
37.8
41.6
45.4
49.9
54.3
58.6
62.7
66.6
71.0
75.2
80.4
83.9
1100 35.0
39.0
43.0
46.8
51.4
55.9
60.2
64.4
68.3
72.7
76.9
81.9
1150 36.0
40.2
44.2
48.1
52.9
57.4
61.8
65.9
69.9
74.3
78.3
1200 37.1
41.3
45.4
49.4
54.2
58.8
63.2
67.3
71.2
75.6
1250 38.0
42.4
46.6
50.6
55.5
60.1
64.5
68.6
72.5
76.7
1300 38.9
43.3
47.6
51.7
56.6
61.3
65.6
69.7
73.5
1350 39.8
44.3
48.6
52.8
57.7
62.3
66.7
70.7
1400 40.6
45.1
49.5
53.7
58.6
63.3
67.5
71.4
1450 41.3
45.9
50.3
54.5
59.5
64.1
68.2
1500 42.0
46.7
51.1
55.3
60.2
64.7
1550 42.6
47.3
51.8
56.0
60.8
65.2
1600 43.2
47.9
52.4
56.5
61.3
1650 43.7
48.4
52.9
57.0
61.7
1700 44.2
48.9
53.3
57.4
1750 44.6
49.3
53.6
57.6
1800 44.9
49.6
53.9
1850 45.1
49.8
54.0
1900 45.3
49.9
1950 45.4
49.9
2000 45.5
2050 45.4
2100 45.3
62
For speeds over 30 m/s we recommend that pulleys be dynamically balanced.
Additional kW per belt for belt life
C
25000 Hrs
d x RPM
91575
12000 Hrs
0
6000 Hrs
d x RPM
96993
8V-25J
POWER RATINGS SUPER HC
®
Additional kW per belt or rib for speed ratio Arc of contact correction factor G
RPM of faster shaft
1 to
1.02
to
1.06
to
1.12
to
1.19
to
1.27
to
1.39
to
1.58
to
1.95 >3.38
to
1.01
1.05
1.11
1.18
1.26
1.38
1.57
1.94
3.38
585 0.00
0.24
0.64
1.12
1.53
1.85
2.17
2.44
2.66
2.82
700 0.00
0.28
0.77
1.34
1.83
2.22
2.60
2.92
3.19
3.37
725 0.00
0.29
0.80
1.39
1.90
2.30
2.69
3.03
3.30
3.50
870 0.00
0.35
0.96
1.67
2.28
2.76
3.23
3.63
3.96
4.19
950 0.00
0.38
1.05
1.83
2.48
3.01
3.53
3.97
4.32
4.58
1160 0.00
0.47
1.28
2.23
3.03
3.68
4.31
4.85
5.28
5.59
1450 0.00
0.59
1.60
2.79
3.79
4.60
5.38
6.06
6.60
6.99
1750 0.00
0.71
1.93
3.36
4.58
5.55
6.50
7.31
7.96
8.44
2850 0.00
1.15
3.14
5.48
7.45
9.03
10.58
11.91
12.97
13.74
3450 0.00
1.40
3.80
6.63
9.02
10.93
12.81
14.41
15.70
16.63
50 0.00
0.02
0.06
0.10
0.13
0.16
0.19
0.21
0.23
0.24
100 0.00
0.04
0.11
0.19
0.26
0.32
0.37
0.42
0.46
0.48
150 0.00
0.06
0.17
0.29
0.39
0.48
0.56
0.63
0.68
0.72
200 0.00
0.08
0.22
0.38
0.52
0.63
0.74
0.84
0.91
0.96
250 0.00
0.10
0.28
0.48
0.65
0.79
0.93
1.04
1.14
1.21
300 0.00
0.12
0.33
0.58
0.78
0.95
1.11
1.25
1.37
1.45
350 0.00
0.14
0.39
0.67
0.92
1.11
1.30
1.46
1.59
1.69
400 0.00
0.16
0.44
0.77
1.05
1.27
1.48
1.67
1.82
1.93
450 0.00
0.18
0.50
0.86
1.18
1.43
1.67
1.88
2.05
2.17
500 0.00
0.20
0.55
0.96
1.31
1.58
1.86
2.09
2.28
2.41
550 0.00
0.22
0.61
1.06
1.44
1.74
2.04
2.30
2.50
2.65
600 0.00
0.24
0.66
1.15
1.57
1.90
2.23
2.51
2.73
2.89
650
700
750
800
0.00
0.00
0.00
0.00
0.26
0.28
0.30
0.32
0.72
0.77
0.83
0.88
1.25
1.34
1.44
1.54
B
1.70
1.83
1.96
2.09
2.06
2.22
2.38
2.54
2.41
2.60
2.78
2.97
2.72
2.92
3.13
3.34
2.96
3.19
3.41
3.64
3.13
3.37
3.62
3.86
850 0.00
0.34
0.94
1.63
2.22
2.69
3.16
3.55
3.87
4.10
900 0.00
0.36
0.99
1.73
2.35
2.85
3.34
3.76
4.10
4.34
950 0.00
0.38
1.05
1.83
2.48
3.01
3.53
3.97
4.32
4.58
1000 0.00
0.40
1.10
1.92
2.62
3.17
3.71
4.18
4.55
4.82
1050 0.00
0.42
1.16
2.02
2.75
3.33
3.90
4.39
4.78
5.06
1100 0.00
0.44
1.21
2.11
2.88
3.49
4.08
4.60
5.01
5.30
1150 0.00
0.47
1.27
2.21
3.01
3.64
4.27
4.80
5.23
5.54
1200 0.00
0.49
1.32
2.31
3.14
3.80
4.45
5.01
5.46
5.79
1250 0.00
0.51
1.38
2.40
3.27
3.96
4.64
5.22
5.69
6.03
1300 0.00
0.53
1.43
2.50
3.40
4.12
4.83
5.43
5.92
6.27
1350 0.00
0.55
1.49
2.59
3.53
4.28
5.01
5.64
6.14
6.51
1400 0.00
0.57
1.54
2.69
3.66
4.44
5.20
5.85
6.37
6.75
1450 0.00
0.59
1.60
2.79
3.79
4.60
5.38
6.06
6.60
6.99
1500 0.00
0.61
1.65
2.88
3.92
4.75
5.57
6.27
6.83
7.23
1550 0.00
0.63
1.71
2.98
4.05
4.91
5.75
6.48
7.05
7.47
1600 0.00
0.65
1.76
3.07
4.18
5.07
5.94
6.68
7.28
7.71
1650 0.00
0.67
1.82
3.17
4.32
5.23
6.13
6.89
7.51
7.95
1700 0.00
0.69
1.87
3.27
4.45
5.39
6.31
7.10
7.74
8.20
1750 0.00
0.71
1.93
3.36
4.58
5.55
6.50
7.31
7.96
8.44
1800 0.00
0.73
1.98
3.46
4.71
5.71
6.68
7.52
8.19
8.68
1850 0.00
0.75
2.04
3.55
4.84
5.86
6.87
7.73
8.42
8.92
1900 0.00
0.77
2.09
3.65
4.97
6.02
7.05
7.94
8.65
9.16
1950 0.00
0.79
2.15
3.75
5.10
6.18
7.24
8.15
8.88
9.40
2000 0.00
0.81
2.20
3.84
5.23
6.34
7.42
8.36
9.10
9.64
2050 0.00
0.83
2.26
3.94
5.36
6.50
7.61
8.56
9.33
9.88
2100 0.00
0.85
2.31
4.03
5.49
6.66
7.80
8.77
9.56
10.12
D - d
A
Arc of contact on small pulley
(degrees)
0.00
0.10
180
174
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.00
1.10
1.20
1.30
1.40
1.50
169
163
157
151
145
139
G
113
106
99
91
83
0.91
0.89
0.87
0.85
0.82
0.80
0.77
0.73
0.70
0.65
1.00
0.99
0.97
0.96
0.94
0.93
Factor G
Belt length correction factor C
L
Belt ref.
RMA Corr.
effectivefactor length C
L mm
8V-1000
2540 0.87
8V-1060
2690 0.87
8V-1120
2845 0.88
8V-1180
2995 0.89
8V-1250
3175 0.90
8V-1320
3355 0.91
8V-1400
3555 0.92
8V-1500
3810 0.93
8V-1600
4065 0.93
8V-1700
4320 0.94
8V-1800
4570 0.95
8V-1900
4825 0.96
8V-2000
8V-2120
8V-2240
C
8V-2360
5995 0.99
8V-2500
6350 1.00
8V-2650
6730 1.01
8V-2800
7110 1.02
L
8V-3000
7620 1.03
8V-3150
8000 1.03
8V-3350
8510 1.05
8V-3550
9015 1.05
8V-3750
9525 1.06
8V-4000
10160 1.07
8V-4500
11430 1.09
8V-4750
12065 1.09
8V-5000
12700 1.10
8V-5600
14225 1.12
SHC
6
The sizes printed in colour are available in
8V PowerBand ® .
8V PowerBands are designed both for use in 8V and 25J pulleys.
Number of belts required =
Design kW
(A + B + C) x G x C
L
63
POWER RATINGS SUPER HC
®
Basic kW per belt
425 437 450 462 475 487 500 515 530 545 560 600 630 670 710 750 800
RPM of faster shaft
585 41.3
43.8
46.5
49.0
51.7
54.2
56.9
59.9
63.0
66.0
69.0
77.0
82.8
90.6
98.1 105.6 114.7
700 47.4
50.3
53.5
56.4
59.5
62.3
65.4
68.9
72.4
75.9
79.4
88.4
95.1 103.8
112.3 120.6 130.6
725 48.7
51.7
54.9
57.9
61.1
64.0
67.2
70.8
74.4
78.0
81.5
90.8
97.6 106.5
115.2 123.6
133.8
870 55.5
58.9
62.6
66.0
69.7
73.0
76.6
80.7
84.8
88.8
92.8 103.2 110.7
120.5
129.8 138.8 149.5
950 58.8
62.5
66.5
70.1
74.0
77.5
81.3
85.6
89.9
94.1
98.3 109.1
116.9 127.0
136.5 145.6 156.2
1160 66.3
70.5
74.9
79.0
83.3
87.2
91.4
96.2 100.8 105.4 109.8 121.3 129.3
1450 73.0
77.5
82.3
86.7
91.3
95.4
99.8 104.6
1750 74.8
2850
3450
50 5.0
100 9.3
5.3
5.6
5.8
6.1
6.4
6.7
7.0
7.3
7.6
8.0
8.8
9.5
10.3
11.2
12.0
13.1
9.8
10.3
10.8
11.3
11.8
12.4
13.0
13.6
14.2
14.9
16.5
17.7
19.4
21.0
22.6
24.6
150 13.2
13.9
14.7
15.4
16.2
17.0
17.7
18.7
19.6
20.5
21.4
23.8
25.6
27.9
30.3
32.7
35.6
200 16.9
17.9
18.9
19.9
20.9
21.8
22.9
24.1
25.2
26.4
27.6
30.7
33.0
36.1
39.2
42.3
46.1
250 20.5
21.6
22.9
24.1
25.4
26.5
27.8
29.2
30.7
32.1
33.6
37.4
40.3
44.1
47.8
51.6
56.2
300 23.9
25.3
26.8
28.2
29.7
31.0
32.5
34.3
36.0
37.7
39.4
43.9
47.2
51.7
56.1
60.5
66.0
350 27.2
28.8
30.5
32.1
33.8
35.4
37.1
39.1
41.1
43.0
45.0
50.2
54.0
59.1
64.2
69.2
75.4
400 30.4
32.2
34.1
35.9
37.9
39.7
41.6
43.8
46.0
48.2
50.4
56.2
60.5
66.3
71.9
77.5
84.4
450 33.5
35.5
37.6
39.6
41.8
43.8
45.9
48.4
50.8
53.2
55.7
62.1
66.9
73.2
79.4
85.5
93.1
500 36.5
38.7
41.0
43.2
45.6
47.7
50.1
52.8
55.5
58.1
60.8
67.8
73.0
79.8
86.6
93.3 101.5
550 39.3
41.7
44.3
46.7
49.2
51.6
54.1
57.0
59.9
62.8
65.7
73.3
78.9
86.2
93.5 100.6 109.4
600 42.1
44.7
47.5
50.0
52.8
55.3
58.0
61.2
64.3
67.4
70.4
78.5
84.5
92.4
100.1 107.7 116.9
650 44.8
47.6
50.5
53.3
56.2
58.9
61.8
65.1
68.4
71.7
75.0
83.6
89.9
98.2
106.4 114.3 124.0
700 47.4
50.3
53.5
56.4
59.5
62.3
65.4
68.9
72.4
75.9
79.4
88.4
95.1 103.8
112.3 120.6 130.6
750 49.9
53.0
56.3
59.4
62.7
65.7
68.9
72.6
76.3
79.9
83.6
93.0 100.0 109.1
117.9 126.5
136.8
800
850
900
950
52.3
54.6
56.8
58.8
55.5
58.0
60.3
62.5
59.0
61.6
64.1
66.5
62.2
65.0
67.6
70.1
65.7
68.6
71.3
74.0
68.8
71.9
74.8
77.5
72.2
75.4
78.4
81.3
76.1
79.5
82.6
85.6
A
80.0
83.5
86.8
89.9
83.8
87.4
90.9
94.1
87.5
97.4 104.7 114.0
91.3 101.6 109.0 118.7
94.9 105.5 113.1
98.3 109.1
123.0
116.9 127.0
123.1
131.9 142.5
128.0 137.0 147.6
132.5 141.5 152.2
136.5 145.6 156.2
1000 60.8
64.6
68.7
72.4
76.4
80.1
84.0
88.4
92.8
97.2 101.4
112.4 120.4 130.5
140.1 149.2
1050 62.6
66.6
70.8
74.6
78.7
82.5
86.5
91.1
95.6 100.0
104.3 115.5 123.6 133.8
143.3
1100 64.4
68.4
72.7
76.7
80.9
84.7
88.8
93.5
98.1 102.6 107.0 118.3 126.4 136.6
1150 66.0
70.1
74.6
78.6
82.9
86.8
91.0
95.7 100.4 104.9 109.4 120.8 128.9
1200 67.5
71.7
76.2
80.3
84.7
88.7
93.0
97.8 102.5 107.1 111.6 123.0 131.0
1250 68.8
73.2
77.8
81.9
86.4
90.4
94.7
99.6 104.3 108.9 113.4 124.8
1300 70.1
74.5
79.1
83.4
87.9
92.0
96.3 101.2 106.0 110.6 115.1
1350 71.2
75.6
80.4
84.7
89.2
93.3
97.7 102.6 107.3 111.9 116.4
1400 72.1
76.6
81.4
85.8
90.3
94.5
98.8 103.7 108.5 113.0
1450 73.0
77.5
82.3
86.7
91.3
95.4
99.8 104.6
1500 73.6
78.2
83.1
87.4
92.0
96.1 100.5
1550 74.2
78.8
83.6
88.0
92.6
96.7
1600 74.5
79.2
84.0
88.4
92.9
1650 74.8
79.4
84.2
88.5
1700 74.8
79.4
1750 74.8
8VK
SHC
6
64
For speeds over 30 m/s we recommend that pulleys be dynamically balanced.
Additional kW per belt for belt life
C
25000 Hrs
d x RPM
51099
12000 Hrs
0
6000 Hrs
d x RPM
54141
POWER RATINGS SUPER HC
®
Additional kW per belt for speed ratio Arc of contact correction factor G
RPM of faster shaft
1 to
1.02
to
1.04
to
1.06
to
1.09
to
1.12
to
1.16
to
1.22
to
1.3 >1.46
to
1.01
1.03
1.05
1.08
1.11
1.15
1.21
1.29
1.46
585 0.00
0.51
1.02
1.53
2.04
2.55
3.06
3.57
4.08
4.60
700 0.00
0.61
1.23
1.83
2.45
3.05
3.66
4.28
4.89
5.50
725 0.00
0.63
1.27
1.90
2.53
3.16
3.80
4.43
5.06
5.70
870 0.00
0.76
1.52
2.28
3.04
3.80
4.55
5.31
6.07
6.84
950 0.00
0.83
1.66
2.49
3.32
4.15
4.97
5.80
6.63
7.47
1160 0.00
1.01
2.03
3.03
4.05
5.06
6.07
7.09
8.10
9.12
1450 0.00
1.26
2.54
3.79
5.07
6.33
7.59
8.86
10.12
11.40
1750 0.00
1.52
3.06
4.58
6.11
7.64
9.16
10.69
12.22
13.76
2850 0.00
2.48
4.99
7.46
9.96
12.44
14.92
17.41
19.90
22.41
3450 0.00
3.00
6.04
9.03
12.05
15.06
18.06
21.07
24.09
27.13
50 0.00
0.04
0.09
0.13
0.17
0.22
0.26
0.31
0.35
0.39
100 0.00
0.09
0.18
0.26
0.35
0.44
0.52
0.61
0.70
0.79
150 0.00
0.13
0.26
0.39
0.52
0.65
0.79
0.92
1.05
1.18
200 0.00
0.17
0.35
0.52
0.70
0.87
1.05
1.22
1.40
1.57
250 0.00
0.22
0.44
0.65
0.87
1.09
1.31
1.53
1.75
1.97
300 0.00
0.26
0.53
0.78
1.05
1.31
1.57
1.83
2.09
2.36
350 0.00
0.30
0.61
0.92
1.22
1.53
1.83
2.14
2.44
2.75
400 0.00
0.35
0.70
1.05
1.40
1.75
2.09
2.44
2.79
3.14
450 0.00
0.39
0.79
1.18
1.57
1.96
2.36
2.75
3.14
3.54
500 0.00
0.43
0.88
1.31
1.75
2.18
2.62
3.05
3.49
3.93
550 0.00
0.48
0.96
1.44
1.92
2.40
2.88
3.36
3.84
4.32
600 0.00
0.52
1.05
1.57
2.10
2.62
3.14
3.66
4.19
4.72
650
700
750
800
0.00
0.00
0.00
0.00
0.56
0.61
0.65
0.70
1.14
1.23
1.31
1.40
1.70
1.83
1.96
2.09
B
2.27
2.45
2.62
2.80
2.84
3.05
3.27
3.49
3.40
3.66
3.93
4.19
3.97
4.28
4.58
4.89
4.54
4.89
5.24
5.59
5.11
5.50
5.90
6.29
850 0.00
0.74
1.49
2.22
2.97
3.71
4.45
5.19
5.93
6.68
900 0.00
0.78
1.58
2.35
3.14
3.93
4.71
5.50
6.28
7.08
950 0.00
0.83
1.66
2.49
3.32
4.15
4.97
5.80
6.63
7.47
1000 0.00
0.87
1.75
2.62
3.49
4.36
5.24
6.11
6.98
7.86
1050 0.00
0.91
1.84
2.75
3.67
4.58
5.50
6.41
7.33
8.26
1100 0.00
0.96
1.93
2.88
3.84
4.80
5.76
6.72
7.68
8.65
1150 0.00
1.00
2.01
3.01
4.02
5.02
6.02
7.02
8.03
9.04
1200 0.00
1.04
2.10
3.14
4.19
5.24
6.28
7.33
8.38
9.43
1250 0.00
1.09
2.19
3.27
4.37
5.45
6.54
7.64
8.73
9.83
1300 0.00
1.13
2.28
3.40
4.54
5.67
6.81
7.94
9.08
10.22
1350 0.00
1.17
2.36
3.53
4.72
5.89
7.07
8.25
9.42
10.61
1400 0.00
1.22
2.45
3.66
4.89
6.11
7.33
8.55
9.77
11.01
1450 0.00
1.26
2.54
3.79
5.07
6.33
7.59
8.86
10.12
11.40
1500 0.00
1.30
2.63
3.92
5.24
6.55
7.85
9.16
10.47
11.79
1550 0.00
1.35
2.71
4.06
5.42
6.76
8.12
9.47
10.82
12.19
1600 0.00
1.39
2.80
4.19
5.59
6.98
8.38
9.77
11.17
12.58
1650 0.00
1.43
2.89
4.32
5.76
7.20
8.64
10.08
11.52
12.97
1700 0.00
1.48
2.98
4.45
5.94
7.42
8.90
10.38
11.87
13.37
1750 0.00
1.52
3.06
4.58
6.11
7.64
9.16
10.69
12.22
13.76
D - d
A
Arc of contact on small pulley
(degrees)
0.00
0.10
180
174
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.00
1.10
1.20
1.30
1.40
1.50
169
163
157
151
145
139
G
113
106
99
91
83
0.91
0.89
0.87
0.85
0.82
0.80
0.77
0.73
0.70
0.65
1.00
0.99
0.97
0.96
0.94
0.93
Factor G
Belt length correction factor C
L
Belt ref.
RMA Corr.
effectivefactor length C
L mm
8VK-1250 3175 0.90
8VK-1320 3355 0.91
8VK-1400 3555 0.92
8VK-1500 3810 0.93
8VK-1600 4065 0.93
8VK-1700 4320 0.94
8VK-1800 4570 0.95
8VK-1900 4825 0.96
8VK-2000 5080 0.97
8VK-2120 5385 0.98
8VK-2240 5690 0.98
8VK-2360 5995 0.99
8VK-2500
8VK-2650
8VK-2800
C
8VK-3000 7620 1.03
8VK-3150 8000 1.03
8VK-3350 8510 1.05
8VK-3550 9015 1.05
L
8VK-3750 9525 1.06
8VK-4000 10160 1.07
8VK-4500 11430 1.09
8VK-4750 12065 1.09
8VK-5000 12700 1.10
8VK-5600 14225 1.12
We recommend that all 8VK PowerBand ® be matched in sets to one single match number only. To help alleviate some matching problems, the 8VK belts are now available in 3, 4, 5,
8, 10 and 12 strands. These are to be ordered in minimum quantities. Consult your Gates representative.
SHC
6
Number of belts required =
Design kW
(A + B + C) x G x C
L
65
POWER RATINGS HI-POWER
®
Basic kW per belt
HP
6
66
C
60 63 67 71 75 80 85 90 95 100 106 112 118 125 132 140 150
RPM of faster shaft
585 0.41
0.46
0.52
0.58
0.63
0.71
0.78
0.85
0.92
0.99
1.08
1.16
1.25
1.34
1.44
1.55
1.68
700 0.48
0.53
0.60
0.67
0.74
0.82
0.91
0.99
1.07
1.16
1.26
1.36
1.45
1.57
1.68
1.81
1.97
725 0.49
0.54
0.62
0.69
0.76
0.85
0.93
1.02
1.11
1.19
1.30
1.40
1.50
1.62
1.73
1.86
2.03
870 0.56
0.63
0.71
0.80
0.88
0.98
1.09
1.19
1.29
1.39
1.51
1.63
1.75
1.89
2.03
2.18
2.37
950 0.60
0.67
0.77
0.86
0.95
1.06
1.17
1.28
1.39
1.50
1.63
1.76
1.89
2.04
2.18
2.35
2.56
1160 0.70
0.79
0.90
1.01
1.11
1.25
1.38
1.51
1.64
1.77
1.93
2.08
2.23
2.41
2.58
2.78
3.03
1450 0.83
0.93
1.07
1.20
1.33
1.49
1.65
1.81
1.97
2.13
2.32
2.50
2.69
2.90
3.11
3.35
3.64
1750 0.96
1.08
1.23
1.39
1.54
1.73
1.92
2.11
2.30
2.48
2.70
2.91
3.13
3.38
3.62
3.89
4.23
2850 1.34
1.52
1.75
1.98
2.21
2.50
2.78
3.05
3.32
3.59
3.90
4.21
4.51
4.85
5.18
5.55
5.98
3450 1.50
1.71
1.98
2.25
2.52
2.84
3.16
3.48
3.78
4.08
4.43
4.77
5.09
5.46
5.81
6.19
6.64
100 0.10
0.10
0.12
0.13
0.14
0.15
0.17
0.18
0.20
0.21
0.23
0.25
0.26
0.28
0.30
0.32
0.35
200 0.17
0.19
0.21
0.23
0.25
0.28
0.31
0.34
0.36
0.39
0.42
0.45
0.49
0.52
0.56
0.60
0.65
300 0.24
0.26
0.30
0.33
0.36
0.40
0.44
0.48
0.52
0.56
0.60
0.65
0.70
0.75
0.80
0.86
0.94
400 0.30
0.34
0.38
0.42
0.46
0.51
0.56
0.61
0.66
0.72
0.78
0.84
0.89
0.96
1.03
1.11
1.21
500 0.36
0.40
0.45
0.50
0.56
0.62
0.68
0.74
0.81
0.87
0.94
1.01
1.09
1.17
1.25
1.35
1.47
600 0.42
0.47
0.53
0.59
0.65
0.72
0.80
0.87
0.94
1.01
1.10
1.19
1.27
1.37
1.47
1.58
1.72
700 0.48
0.53
0.60
0.67
0.74
0.82
0.91
0.99
1.07
1.16
1.26
1.36
1.45
1.57
1.68
1.81
1.97
800 0.53
0.59
0.67
0.74
0.82
0.92
1.01
1.11
1.20
1.30
1.41
1.52
1.63
1.76
1.89
2.03
2.21
900 0.58
0.65
0.73
0.82
0.91
1.01
1.12
1.22
1.33
1.43
1.56
1.68
1.80
1.94
2.09
2.25
2.44
1000 0.63
0.70
0.80
0.89
0.99
1.10
1.22
1.34
1.45
1.57
1.70
1.84
1.97
2.13
2.28
2.46
2.67
1100 0.68
0.76
0.86
0.96
1.07
1.19
1.32
1.45
1.57
1.70
1.84
1.99
2.14
2.30
2.47
2.66
2.90
1200 0.72
0.81
0.92
1.03
1.14
1.28
1.42
1.55
1.69
1.82
1.98
2.14
2.30
2.48
2.66
2.86
3.11
1300 0.77
0.86
0.98
1.10
1.22
1.37
1.51
1.66
1.80
1.95
2.12
2.29
2.46
2.65
2.84
3.06
3.33
1400 0.81
0.91
1.04
1.17
1.29
1.45
1.61
1.76
1.92
2.07
2.25
2.43
2.61
2.82
3.02
3.25
3.54
1500 0.85
0.96
1.10
1.23
1.37
1.53
1.70
1.86
2.03
2.19
2.38
2.57
2.76
2.98
3.20
3.44
3.74
1600
1700
1800
1900
0.90
0.94
0.98
1.01
1.01
1.05
1.10
1.14
1.15
1.21
1.26
1.31
1.29
1.36
1.42
1.48
1.44
1.51
1.58
1.64
1.61
1.69
1.77
1.85
1.79
1.88
1.97
2.05
1.96
2.06
2.16
2.25
A
2.14
2.24
2.35
2.45
2.31
2.42
2.54
2.65
2.51
2.64
2.76
2.88
2.71
2.85
2.98
3.11
2.91
3.06
3.20
3.34
3.14
3.30
3.45
3.60
3.37
3.54
3.70
3.86
3.62
3.80
3.98
4.15
3.94
4.13
4.32
4.51
2000 1.05
1.19
1.36
1.54
1.71
1.92
2.13
2.34
2.55
2.76
3.00
3.24
3.48
3.75
4.02
4.32
4.68
2100 1.09
1.23
1.41
1.59
1.77
2.00
2.22
2.43
2.65
2.86
3.11
3.36
3.61
3.89
4.17
4.48
4.86
2200 1.12
1.27
1.46
1.65
1.84
2.07
2.30
2.52
2.75
2.97
3.23
3.49
3.74
4.03
4.32
4.64
5.03
2300 1.16
1.31
1.51
1.70
1.90
2.14
2.37
2.61
2.84
3.07
3.34
3.60
3.87
4.17
4.46
4.79
5.19
2400 1.19
1.35
1.55
1.76
1.96
2.21
2.45
2.69
2.93
3.17
3.45
3.72
3.99
4.30
4.60
4.94
5.35
2500 1.23
1.39
1.60
1.81
2.02
2.27
2.53
2.78
3.02
3.27
3.55
3.83
4.11
4.43
4.74
5.08
5.50
2600 1.26
1.42
1.64
1.86
2.08
2.34
2.60
2.86
3.11
3.36
3.66
3.95
4.23
4.55
4.87
5.22
5.64
2700 1.29
1.46
1.69
1.91
2.13
2.40
2.67
2.94
3.20
3.45
3.76
4.05
4.34
4.67
5.00
5.35
5.78
2800 1.32
1.50
1.73
1.96
2.19
2.47
2.74
3.02
3.28
3.55
3.86
4.16
4.46
4.79
5.12
5.48
5.92
2900 1.35
1.53
1.77
2.01
2.24
2.53
2.81
3.09
3.37
3.63
3.95
4.26
4.56
4.91
5.24
5.61
6.05
3000 1.38
1.57
1.81
2.06
2.30
2.59
2.88
3.17
3.45
3.72
4.04
4.36
4.67
5.02
5.35
5.73
6.17
3100 1.41
1.60
1.85
2.10
2.35
2.65
2.95
3.24
3.52
3.81
4.13
4.46
4.77
5.12
5.46
5.84
6.28
3200 1.44
1.63
1.89
2.15
2.40
2.71
3.01
3.31
3.60
3.89
4.22
4.55
4.87
5.22
5.57
5.95
6.39
3300 1.46
1.66
1.93
2.19
2.45
2.76
3.07
3.38
3.67
3.97
4.31
4.64
4.96
5.32
5.67
6.05
6.50
3400 1.49
1.69
1.97
2.23
2.50
2.82
3.13
3.44
3.75
4.04
4.39
4.73
5.05
5.42
5.77
6.15
6.59
3500 1.51
1.72
2.00
2.27
2.54
2.87
3.19
3.51
3.82
4.12
4.47
4.81
5.14
5.51
5.86
6.24
6.68
3600 1.54
1.75
2.04
2.31
2.59
2.92
3.25
3.57
3.88
4.19
4.55
4.89
5.22
5.59
5.94
6.32
6.76
3700 1.56
1.78
2.07
2.35
2.63
2.97
3.31
3.63
3.95
4.26
4.62
4.97
5.30
5.67
6.02
6.40
6.84
3800 1.58
1.81
2.10
2.39
2.68
3.02
3.36
3.69
4.01
4.33
4.69
5.04
5.37
5.75
6.10
6.47
6.90
3900 1.61
1.83
2.13
2.43
2.72
3.07
3.41
3.75
4.08
4.39
4.76
5.11
5.45
5.82
6.17
6.54
6.96
4000 1.63
1.86
2.16
2.46
2.76
3.12
3.47
3.80
4.13
4.45
4.82
5.18
5.51
5.89
6.23
6.60
7.02
4200 1.67
1.91
2.22
2.53
2.83
3.20
3.56
3.91
4.24
4.57
4.94
5.30
5.64
6.01
6.35
6.70
7.10
4400 1.70
1.95
2.28
2.60
2.91
3.28
3.65
4.00
4.35
4.67
5.05
5.41
5.74
6.11
6.44
6.78
7.15
4600 1.74
1.99
2.33
2.65
2.97
3.36
3.73
4.09
4.44
4.77
5.15
5.50
5.83
6.19
6.51
6.83
7.16
4800 1.77
2.03
2.37
2.71
3.03
3.43
3.81
4.17
4.52
4.85
5.23
5.58
5.90
6.24
6.55
6.85
7.14
5000 1.79
2.06
2.42
2.76
3.09
3.49
3.87
4.24
4.59
4.92
5.29
5.64
5.95
6.28
6.57
6.84
7.08
5200 1.82
2.09
2.45
2.80
3.14
3.54
3.93
4.30
4.65
4.98
5.35
5.68
5.99
6.30
6.56
6.79
6.99
5400 1.84
2.12
2.49
2.84
3.18
3.59
3.98
4.35
4.70
5.03
5.39
5.71
6.00
6.29
6.52
6.72
6.86
5600 1.85
2.14
2.51
2.87
3.22
3.63
4.03
4.40
4.74
5.06
5.41
5.72
5.99
6.26
6.46
6.62
6.69
5800 1.87
2.16
2.54
2.90
3.25
3.67
4.06
4.43
4.77
5.08
5.42
5.72
5.97
6.20
6.37
6.48
6.48
6000 1.88
2.17
2.56
2.93
3.28
3.70
4.09
4.45
4.78
5.09
5.41
5.69
5.92
6.12
6.25
6.30
6.22
For speeds over 30 m/s we recommend that pulleys be dynamically balanced.
Additional kW per belt for belt life
6000 Hrs
d x RPM
615765
25000 Hrs
d x RPM
581734
12000 Hrs
0
Z
POWER RATINGS HI-POWER
®
Additional kW per belt for speed ratio Arc of contact correction factor G
RPM of faster shaft
1 1.02
1.04
1.07
1.09
1.13
1.17
1.23
1.33 >1.5
to to to to to to to to to
1.01
1.03
1.06
1.08
1.12
1.16
1.22
1.32
1.5
585 0.00
0.01
0.01
0.02
0.02
0.03
0.03
0.04
0.04
0.05
700 0.00
0.01
0.01
0.02
0.03
0.03
0.04
0.04
0.05
0.06
725 0.00
0.01
0.01
0.02
0.03
0.03
0.04
0.05
0.05
0.06
870 0.00
0.01
0.02
0.02
0.03
0.04
0.05
0.06
0.06
0.07
950 0.00
0.01
0.02
0.03
0.03
0.04
0.05
0.06
0.07
0.08
1160 0.00
0.01
0.02
0.03
0.04
0.05
0.06
0.07
0.08
0.10
1450 0.00
0.01
0.03
0.04
0.05
0.07
0.08
0.09
0.11
0.12
1750 0.00
0.02
0.03
0.05
0.06
0.08
0.10
0.11
0.13
0.14
2850 0.00
0.03
0.05
0.08
0.10
0.13
0.16
0.18
0.21
0.23
3450 0.00
0.03
0.06
0.09
0.13
0.16
0.19
0.22
0.25
0.28
100 0.00
0.00
0.00
0.00
0.00
0.00
0.01
0.01
0.01
0.01
200 0.00
0.00
0.00
0.01
0.01
0.01
0.01
0.01
0.01
0.02
300 0.00
0.00
0.01
0.01
0.01
0.01
0.02
0.02
0.02
0.02
400 0.00
0.00
0.01
0.01
0.01
0.02
0.02
0.03
0.03
0.03
500 0.00
0.00
0.01
0.01
0.02
0.02
0.03
0.03
0.04
0.04
600 0.00
0.01
0.01
0.02
0.02
0.03
0.03
0.04
0.04
0.05
700 0.00
0.01
0.01
0.02
0.03
0.03
0.04
0.04
0.05
0.06
800 0.00
0.01
0.01
0.02
0.03
0.04
0.04
0.05
0.06
0.07
900 0.00
0.01
0.02
0.02
0.03
0.04
0.05
0.06
0.07
0.07
1000 0.00
0.01
0.02
0.03
0.04
0.05
0.05
0.06
0.07
0.08
1100 0.00
0.01
0.02
0.03
0.04
0.05
0.06
0.07
0.08
0.09
1200 0.00
0.01
0.02
0.03
0.04
0.05
0.07
0.08
0.09
0.10
1300
1400
1500
1600
0.00
0.00
0.00
0.00
0.01
0.01
0.01
0.01
0.02
0.03
0.03
0.03
0.04
0.04
0.04
0.04
B
0.05
0.05
0.05
0.06
0.06
0.06
0.07
0.07
0.07
0.08
0.08
0.09
0.08
0.09
0.10
0.10
0.10
0.10
0.11
0.12
0.11
0.12
0.12
0.13
1700 0.00
0.02
0.03
0.05
0.06
0.08
0.09
0.11
0.12
0.14
1800 0.00
0.02
0.03
0.05
0.07
0.08
0.10
0.12
0.13
0.15
1900 0.00
0.02
0.03
0.05
0.07
0.09
0.10
0.12
0.14
0.16
2000 0.00
0.02
0.04
0.06
0.07
0.09
0.11
0.13
0.15
0.16
2100 0.00
0.02
0.04
0.06
0.08
0.10
0.12
0.13
0.15
0.17
2200 0.00
0.02
0.04
0.06
0.08
0.10
0.12
0.14
0.16
0.18
2300 0.00
0.02
0.04
0.06
0.08
0.11
0.13
0.15
0.17
0.19
2400 0.00
0.02
0.04
0.07
0.09
0.11
0.13
0.15
0.18
0.20
2500 0.00
0.02
0.05
0.07
0.09
0.11
0.14
0.16
0.18
0.21
2600 0.00
0.02
0.05
0.07
0.10
0.12
0.14
0.17
0.19
0.21
2700 0.00
0.02
0.05
0.07
0.10
0.12
0.15
0.17
0.20
0.22
2800 0.00
0.03
0.05
0.08
0.10
0.13
0.15
0.18
0.21
0.23
2900 0.00
0.03
0.05
0.08
0.11
0.13
0.16
0.19
0.21
0.24
3000 0.00
0.03
0.06
0.08
0.11
0.14
0.16
0.19
0.22
0.25
3100 0.00
0.03
0.06
0.09
0.11
0.14
0.17
0.20
0.23
0.26
3200 0.00
0.03
0.06
0.09
0.12
0.15
0.18
0.20
0.23
0.26
3300 0.00
0.03
0.06
0.09
0.12
0.15
0.18
0.21
0.24
0.27
3400 0.00
0.03
0.06
0.09
0.12
0.16
0.19
0.22
0.25
0.28
3500 0.00
0.03
0.06
0.10
0.13
0.16
0.19
0.22
0.26
0.29
3600 0.00
0.03
0.07
0.10
0.13
0.16
0.20
0.23
0.26
0.30
3700 0.00
0.03
0.07
0.10
0.14
0.17
0.20
0.24
0.27
0.30
3800 0.00
0.03
0.07
0.10
0.14
0.17
0.21
0.24
0.28
0.31
3900 0.00
0.04
0.07
0.11
0.14
0.18
0.21
0.25
0.29
0.32
4000 0.00
0.04
0.07
0.11
0.15
0.18
0.22
0.26
0.29
0.33
4200 0.00
0.04
0.08
0.12
0.15
0.19
0.23
0.27
0.31
0.35
4400 0.00
0.04
0.08
0.12
0.16
0.20
0.24
0.28
0.32
0.36
4600 0.00
0.04
0.08
0.13
0.17
0.21
0.25
0.29
0.34
0.38
4800 0.00
0.04
0.09
0.13
0.18
0.22
0.26
0.31
0.35
0.40
5000 0.00
0.05
0.09
0.14
0.18
0.23
0.27
0.32
0.37
0.41
5200 0.00
0.05
0.10
0.14
0.19
0.24
0.29
0.33
0.38
0.43
5400 0.00
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.40
0.44
5600 0.00
0.05
0.10
0.15
0.21
0.26
0.31
0.36
0.41
0.46
5800 0.00
0.05
0.11
0.16
0.21
0.27
0.32
0.37
0.42
0.48
6000 0.00
0.05
0.11
0.17
0.22
0.27
0.33
0.38
0.44
0.49
D - d
A
Arc of contact on small pulley
(degrees)
0.00
0.10
180
174
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.00
1.10
1.20
1.30
1.40
1.50
169
163
157
151
145
139
G
113
106
99
91
83
0.91
0.89
0.87
0.85
0.82
0.80
0.77
0.73
0.70
0.65
1.00
0.99
0.97
0.96
0.94
0.93
Factor G
Belt length correction factor C
L
Belt ref.
Belt ref.
ISO Corr.
datum factor length C
L mm
Z-49
Z-50
Z-51
Z-52
Z-55
Z-17 1/2 470 0.73
Z-18 1/2 495 0.75
Z-19 505 0.75
Z-19 1/2 520 0.76
Z-20 1/2 550 0.78
Z-22 580 0.79
Z-57
Z-37
Z-31
Z-36
Z-22 1/2 595 0.80
Z-23 1/2 620 0.81
Z-24
Z-25
Z-30 1/2
630 0.82
655 0.83
Z-26 1/2 695 0.85
Z-28
Z-29
Z-29 1/2
730 0.87
755
770
795
C
0.88
0.88
0.89
805 0.90
Z-31 1/2 820 0.90
Z-32 1/2 845 0.91
Z-33 1/2 870 0.92
Z-34 1/2 895 0.93
Z-35 1/2 920 0.94
930 0.94
Z-59
Z-63 1/2 1630 1.11
Z-67
Z-71
Z-75
L
955 0.95
Z-37 1/2 970 0.95
Z-38 1/2 995 0.96
1520 1.09
1720 1.13
1820 1.16
1920 1.16
1470 1.08
1270 1.04
1295 1.04
1320 1.05
1340 1.05
1420 1.70
Z-39 1005 0.96
Z-39 1/2 1020 0.97
Z-41 1/2 1070 0.98
Z-42 1080 0.99
Z-44
Z-45
1140 1.00
1170 1.01
Z-45 1/2 1180 1.01
Z-46 1200 1.02
Z-47
Z-48
1220
1245
1.02
1.03
Z-48 1/2 1255 1.03
ISO Corr.
datum factor length C
L mm
HP
6
Number of belts required =
Design kW
(A + B + C) x G x C
L
67
POWER RATINGS HI-POWER
®
Basic kW per belt
HP
6
68
C
85 90 95 100 106 112 118 125 132 140 150 160 170 180 190 200 212
RPM of faster shaft
585 0.90
1.02
1.13
1.24
1.38
1.51
1.64
1.80
1.95
2.13
2.34
2.56
2.77
2.98
3.19
3.40
3.65
700 1.04
1.17
1.31
1.44
1.60
1.76
1.91
2.09
2.27
2.48
2.73
2.98
3.23
3.48
3.73
3.97
4.26
725 1.07
1.21
1.35
1.48
1.65
1.81
1.97
2.16
2.34
2.55
2.81
3.07
3.33
3.59
3.84
4.09
4.39
870 1.23
1.40
1.56
1.72
1.91
2.10
2.29
2.51
2.73
2.98
3.28
3.59
3.89
4.18
4.48
4.77
5.12
950 1.32
1.50
1.67
1.84
2.05
2.26
2.46
2.70
2.94
3.20
3.53
3.86
4.18
4.50
4.82
5.14
5.51
1160 1.54
1.75
1.96
2.16
2.41
2.65
2.90
3.18
3.46
3.77
4.17
4.55
4.93
5.31
5.68
6.05
6.48
1450 1.81
2.07
2.32
2.57
2.87
3.17
3.46
3.80
4.14
4.51
4.98
5.44
5.89
6.34
6.78
7.21
7.71
1750 2.07
2.37
2.67
2.96
3.31
3.66
4.00
4.39
4.78
5.22
5.76
6.28
6.80
7.30
7.80
8.28
8.84
2850 2.83
3.27
3.70
4.13
4.63
5.12
5.60
6.14
6.67
7.26
7.96
8.62
9.25
9.84
10.39 10.89
11.45
3450 3.12
3.62
4.11
4.58
5.14
5.68
6.20
6.79
7.35
7.96
8.67
9.32
9.91 10.44
10.89 11.28 11.64
100 0.21
0.23
0.25
0.28
0.30
0.33
0.36
0.39
0.42
0.45
0.50
0.54
0.58
0.63
0.67
0.71
0.76
200 0.37
0.42
0.46
0.50
0.55
0.60
0.65
0.71
0.77
0.84
0.92
1.00
1.08
1.16
1.24
1.32
1.42
300 0.52
0.59
0.65
0.71
0.78
0.86
0.93
1.01
1.10
1.19
1.31
1.43
1.55
1.66
1.78
1.90
2.03
400 0.66
0.74
0.82
0.90
1.00
1.10
1.19
1.30
1.41
1.53
1.69
1.84
1.99
2.14
2.29
2.44
2.62
500 0.79
0.89
0.99
1.09
1.21
1.32
1.44
1.57
1.71
1.86
2.05
2.23
2.42
2.60
2.79
2.97
3.19
600 0.92
1.04
1.15
1.27
1.41
1.54
1.68
1.84
1.99
2.17
2.39
2.61
2.83
3.05
3.26
3.48
3.73
700 1.04
1.17
1.31
1.44
1.60
1.76
1.91
2.09
2.27
2.48
2.73
2.98
3.23
3.48
3.73
3.97
4.26
800 1.15
1.31
1.46
1.61
1.78
1.96
2.14
2.34
2.54
2.77
3.06
3.34
3.62
3.90
4.17
4.45
4.77
900 1.27
1.43
1.60
1.77
1.96
2.16
2.36
2.58
2.81
3.06
3.38
3.69
4.00
4.31
4.61
4.91
5.27
1000 1.37
1.56
1.74
1.92
2.14
2.35
2.57
2.82
3.06
3.34
3.69
4.03
4.37
4.70
5.03
5.36
5.75
1100 1.48
1.68
1.88
2.07
2.31
2.54
2.78
3.05
3.31
3.61
3.99
4.36
4.72
5.08
5.44
5.79
6.21
1200 1.58
1.79
2.01
2.22
2.48
2.73
2.98
3.27
3.55
3.88
4.28
4.68
5.07
5.46
5.84
6.22
6.66
1300 1.67
1.91
2.14
2.36
2.64
2.91
3.17
3.48
3.79
4.14
4.57
4.99
5.41
5.82
6.22
6.62
7.09
1400 1.77
2.01
2.26
2.50
2.79
3.08
3.37
3.70
4.02
4.39
4.85
5.29
5.73
6.17
6.60
7.02
7.51
1500 1.86
2.12
2.38
2.64
2.95
3.25
3.55
3.90
4.25
4.64
5.12
5.59
6.05
6.51
6.96
7.40
7.91
1600
1700
1800
1900
1.95
2.03
2.11
2.19
2.22
2.32
2.42
2.52
2.50
2.61
2.72
2.83
2.77
2.90
3.03
3.15
3.10
3.24
3.38
3.52
3.42
3.58
3.74
3.89
3.74
3.91
4.09
4.25
4.10
4.30
4.49
4.67
A
4.47
4.68
4.88
5.09
4.87
5.11
5.33
5.55
5.38
5.63
5.88
6.12
5.87
6.15
6.42
6.67
6.36
6.66
6.94
7.22
6.83
7.15
7.45
7.75
7.30
7.64
7.95
8.26
7.76
8.11
8.44
8.76
8.30
8.66
9.01
9.34
2000 2.27
2.61
2.94
3.27
3.65
4.04
4.42
4.85
5.28
5.76
6.35
6.92
7.48
8.02
8.55
9.06
9.65
2100 2.35
2.70
3.04
3.38
3.78
4.18
4.57
5.02
5.47
5.96
6.57
7.16
7.73
8.29
8.83
9.35
9.94
2200 2.42
2.78
3.14
3.49
3.91
4.32
4.73
5.19
5.65
6.16
6.79
7.39
7.98
8.54
9.09
9.61 10.22
2300 2.49
2.86
3.23
3.60
4.03
4.46
4.88
5.35
5.83
6.35
6.99
7.61
8.21
8.78
9.33
9.86 10.47
2400 2.56
2.94
3.33
3.70
4.15
4.59
5.02
5.51
5.99
6.53
7.19
7.82
8.42
9.01
9.56 10.10 10.70
2500 2.62
3.02
3.42
3.80
4.26
4.71
5.16
5.66
6.16
6.71
7.37
8.02
8.63
9.22
9.78 10.31 10.90
2600 2.69
3.10
3.50
3.90
4.37
4.84
5.29
5.81
6.31
6.88
7.55
8.20
8.82
9.41
9.97 10.50 11.09
2700 2.75
3.17
3.59
4.00
4.48
4.95
5.42
5.95
6.46
7.03
7.72
8.38
9.00
9.60
10.15 10.67
11.25
2800 2.80
3.24
3.67
4.09
4.58
5.07
5.54
6.08
6.60
7.19
7.88
8.54
9.17
9.76
10.31 10.83
11.39
2900 2.86
3.30
3.74
4.17
4.68
5.17
5.66
6.21
6.74
7.33
8.03
8.70
9.33
9.91
10.46
10.96 11.50
3000 2.91
3.37
3.82
4.26
4.77
5.28
5.77
6.33
6.87
7.46
8.17
8.84
9.46 10.05
10.58 11.07 11.58
3100 2.96
3.43
3.89
4.34
4.86
5.38
5.88
6.44
6.99
7.59
8.30
8.97
9.59 10.16
10.69 11.15 11.65
3200 3.01
3.49
3.95
4.41
4.95
5.47
5.98
6.55
7.10
7.71
8.42
9.09
9.70
10.26
10.77 11.22 11.68
3300 3.05
3.54
4.02
4.48
5.03
5.56
6.07
6.65
7.21
7.82
8.53
9.19
9.80
10.35
10.83 11.26 11.68
3400 3.10
3.59
4.08
4.55
5.10
5.64
6.16
6.75
7.31
7.92
8.63
9.28
9.88 10.41
10.88 11.28 11.66
3500 3.14
3.64
4.13
4.61
5.18
5.72
6.25
6.83
7.40
8.01
8.71
9.36
9.94 10.46
10.90 11.27 11.61
3600 3.17
3.69
4.19
4.68
5.24
5.79
6.32
6.92
7.48
8.09
8.79
9.43
9.99 10.48
10.90 11.24 11.53
3700 3.21
3.73
4.24
4.73
5.31
5.86
6.39
6.99
7.55
8.16
8.85
9.48 10.02 10.49
10.88 11.18 11.42
3800 3.24
3.77
4.28
4.78
5.36
5.92
6.46
7.06
7.62
8.22
8.91
9.51 10.04 10.48
10.83 11.09 11.27
3900 3.27
3.80
4.33
4.83
5.42
5.98
6.52
7.12
7.68
8.27
8.95
9.54 10.04 10.45
10.77 10.98 11.10
4000 3.29
3.84
4.37
4.88
5.47
6.03
6.57
7.17
7.73
8.31
8.97
9.54 10.02 10.40
10.67 10.84 10.89
4100 3.32
3.87
4.40
4.92
5.51
6.08
6.62
7.21
7.77
8.35
8.99
9.54
9.99 10.33
10.56 10.67
4200 3.34
3.89
4.43
4.95
5.55
6.12
6.66
7.25
7.80
8.37
8.99
9.52
9.93 10.23
10.42 10.48
4300 3.36
3.92
4.46
4.98
5.58
6.15
6.69
7.28
7.82
8.38
8.98
9.48
9.86 10.12
10.25
4400 3.37
3.94
4.48
5.01
5.61
6.18
6.72
7.30
7.83
8.38
8.96
9.42
9.77
9.98
10.06
4500 3.38
3.95
4.50
5.03
5.63
6.20
6.74
7.31
7.83
8.36
8.92
9.35
9.66
9.82
9.84
4600 3.39
3.97
4.52
5.05
5.65
6.22
6.75
7.32
7.83
8.34
8.87
9.27
9.52
9.64
4700 3.40
3.98
4.53
5.06
5.67
6.23
6.75
7.31
7.81
8.31
8.80
9.16
9.37
9.43
4800 3.40
3.98
4.54
5.07
5.67
6.23
6.75
7.30
7.78
8.26
8.73
9.04
9.20
4900 3.40
3.99
4.54
5.08
5.67
6.23
6.74
7.28
7.75
8.20
8.63
8.90
9.01
5000 3.40
3.99
4.54
5.07
5.67
6.22
6.72
7.25
7.70
8.13
8.52
8.75
8.80
For speeds over 30 m/s we recommend that pulleys be dynamically balanced.
Additional kW per belt for belt life
6000 Hrs
d x RPM
402902
25000 Hrs
d x RPM
380518
12000 Hrs
0
A
POWER RATINGS HI-POWER
®
Additional kW per belt for speed ratio Arc of contact correction factor G
RPM of faster shaft
1 1.02
1.04
1.07
1.09
1.13
1.17
1.23
1.33 >1.5
to to to to to to to to to
1.01
1.03
1.06
1.08
1.12
1.16
1.22
1.32
1.5
585 0.00
0.01
0.02
0.03
0.05
0.06
0.07
0.08
0.09
0.10
700 0.00
0.01
0.03
0.04
0.06
0.07
0.08
0.10
0.11
0.13
725 0.00
0.01
0.03
0.04
0.06
0.07
0.09
0.10
0.12
0.13
870 0.00
0.02
0.03
0.05
0.07
0.09
0.10
0.12
0.14
0.16
950 0.00
0.02
0.04
0.06
0.08
0.09
0.11
0.13
0.15
0.17
1160 0.00
0.02
0.05
0.07
0.09
0.12
0.14
0.16
0.18
0.21
1450 0.00
0.03
0.06
0.09
0.12
0.14
0.17
0.20
0.23
0.26
1750 0.00
0.03
0.07
0.10
0.14
0.17
0.21
0.24
0.28
0.31
2850 0.00
0.06
0.11
0.17
0.23
0.28
0.34
0.40
0.45
0.51
3450 0.00
0.07
0.14
0.21
0.27
0.34
0.41
0.48
0.55
0.62
100 0.00
0.00
0.00
0.01
0.01
0.01
0.01
0.01
0.02
0.02
200 0.00
0.00
0.01
0.01
0.02
0.02
0.02
0.03
0.03
0.04
300 0.00
0.01
0.01
0.02
0.02
0.03
0.04
0.04
0.05
0.05
400 0.00
0.01
0.02
0.02
0.03
0.04
0.05
0.06
0.06
0.07
500 0.00
0.01
0.02
0.03
0.04
0.05
0.06
0.07
0.08
0.09
600 0.00
0.01
0.02
0.04
0.05
0.06
0.07
0.08
0.10
0.11
700 0.00
0.01
0.03
0.04
0.06
0.07
0.08
0.10
0.11
0.13
800 0.00
0.02
0.03
0.05
0.06
0.08
0.10
0.11
0.13
0.14
900 0.00
0.02
0.04
0.05
0.07
0.09
0.11
0.13
0.14
0.16
1000 0.00
0.02
0.04
0.06
0.08
0.10
0.12
0.14
0.16
0.18
1100 0.00
0.02
0.04
0.07
0.09
0.11
0.13
0.15
0.18
0.20
1200 0.00
0.02
0.05
0.07
0.10
0.12
0.14
0.17
0.19
0.21
1300
1400
1500
1600
0.00
0.00
0.00
0.00
0.03
0.03
0.03
0.03
0.05
0.06
0.06
0.06
0.08
0.08
0.09
0.10
B
0.10
0.11
0.12
0.13
0.13
0.14
0.15
0.16
0.16
0.17
0.18
0.19
0.18
0.19
0.21
0.22
0.21
0.22
0.24
0.25
0.23
0.25
0.27
0.29
1700 0.00
0.03
0.07
0.10
0.14
0.17
0.20
0.24
0.27
0.30
1800 0.00
0.04
0.07
0.11
0.14
0.18
0.21
0.25
0.29
0.32
1900 0.00
0.04
0.08
0.11
0.15
0.19
0.23
0.26
0.30
0.34
2000 0.00
0.04
0.08
0.12
0.16
0.20
0.24
0.28
0.32
0.36
2100 0.00
0.04
0.08
0.13
0.17
0.21
0.25
0.29
0.33
0.38
2200 0.00
0.04
0.09
0.13
0.17
0.22
0.26
0.31
0.35
0.39
2300 0.00
0.05
0.09
0.14
0.18
0.23
0.27
0.32
0.37
0.41
2400 0.00
0.05
0.10
0.14
0.19
0.24
0.29
0.33
0.38
0.43
2500 0.00
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.40
0.45
2600 0.00
0.05
0.10
0.16
0.21
0.26
0.31
0.36
0.41
0.47
2700 0.00
0.05
0.11
0.16
0.21
0.27
0.32
0.38
0.43
0.48
2800 0.00
0.06
0.11
0.17
0.22
0.28
0.33
0.39
0.45
0.50
2900 0.00
0.06
0.12
0.17
0.23
0.29
0.35
0.40
0.46
0.52
3000 0.00
0.06
0.12
0.18
0.24
0.30
0.36
0.42
0.48
0.54
3100 0.00
0.06
0.12
0.19
0.25
0.31
0.37
0.43
0.49
0.55
3200 0.00
0.06
0.13
0.19
0.25
0.32
0.38
0.45
0.51
0.57
3300 0.00
0.07
0.13
0.20
0.26
0.33
0.39
0.46
0.53
0.59
3400 0.00
0.07
0.14
0.20
0.27
0.34
0.41
0.47
0.54
0.61
3500 0.00
0.07
0.14
0.21
0.28
0.35
0.42
0.49
0.56
0.63
3600 0.00
0.07
0.14
0.22
0.29
0.36
0.43
0.50
0.57
0.64
3700 0.00
0.07
0.15
0.22
0.29
0.37
0.44
0.51
0.59
0.66
3800 0.00
0.08
0.15
0.23
0.30
0.38
0.45
0.53
0.60
0.68
3900 0.00
0.08
0.16
0.23
0.31
0.39
0.47
0.54
0.62
0.70
4000 0.00
0.08
0.16
0.24
0.32
0.40
0.48
0.56
0.64
0.72
4100 0.00
0.08
0.16
0.25
0.33
0.41
0.49
0.57
0.65
0.73
4200 0.00
0.08
0.17
0.25
0.33
0.42
0.50
0.58
0.67
0.75
4300 0.00
0.09
0.17
0.26
0.34
0.43
0.51
0.60
0.68
0.77
4400 0.00
0.09
0.18
0.26
0.35
0.44
0.53
0.61
0.70
0.79
4500 0.00
0.09
0.18
0.27
0.36
0.45
0.54
0.63
0.72
0.81
4600 0.00
0.09
0.18
0.27
0.37
0.46
0.55
0.64
0.73
0.82
4700 0.00
0.09
0.19
0.28
0.37
0.47
0.56
0.65
0.75
0.84
4800 0.00
0.10
0.19
0.29
0.38
0.48
0.57
0.67
0.76
0.86
4900 0.00
0.10
0.20
0.29
0.39
0.49
0.59
0.68
0.78
0.88
5000 0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.89
D - d
A
Arc of contact on small pulley
(degrees)
0.00
0.10
180
174
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.00
1.10
1.20
1.30
1.40
1.50
169
163
157
151
145
139
G
113
106
99
91
83
0.91
0.89
0.87
0.85
0.82
0.80
0.77
0.73
0.70
0.65
1.00
0.99
0.97
0.96
0.94
0.93
Factor G
Belt length correction factor C
L
Belt ref.
Belt ref.
ISO Corr.
datum factor length C
L mm
A-50
A-51
A-52
A-53
A-54
A-55
A-56
A-57
A-58
A-59
A-60
A-61
A-62
A-63
A-64
A-65
A-66
A-67
1310
1330
1355
1385
1410
1435
1460
1485
1510
1535
1560
1585
1610
1635
1660
1690
1715
1735
570
595
620
630
645
655
680
705
0.70
0.71
0.72
0.73
0.73
0.74
0.75
0.76
A-68
A-69
A-70
A-71
A-72
A-73
A-74
A-75
A-21
A-22
A-23
A-23 1/2
A-24
A-24 1/2
A-25
A-26
A-45
A-46
A-47
A-48
A-49
1180
1205
1230
1255
1280
A-27 1/2
A-28
A-28 1/2
A-29 1/2
A-30
A-31
A-32
A-33
A-34
A-35
A-36
A-37
A-38
A-39
A-40
A-41
A-42
A-43
A-44
720
730
745
755
780
805
825
850
875
900
925
950
975
1000
1025
1055
1080
1105
1130
1155
A-27
C
0.76
0.77
0.77
0.77
0.78
0.79
0.80
0.81
0.81
0.82
0.83
0.84
0.84
0.85
0.86
0.87
0.87
0.88
0.88
0.89
A-76
A-77
A-78
A-79
A-80
A-81
A-82
A-83
A-84
A-85
A-86
A-87
A-88
A-89
A-90
A-91
A-92
A-93
A-94
A-95
A-96
A-97
A-98
A-100
A-102
2270
2295
2325
2350
2375
2400
2425
2450
2475
2500
2525
2575
2625
2245
L
1.07
1.07
1.07
1.08
1.08
1.09
1.09
1.09
1.09
1.10
1.10
1.10
1.11
1.11
0.90
0.90
0.91
0.91
0.92
1965
1990
2020
2040
2070
2095
2120
2145
2170
2195
2220
1.03
1.04
1.04
1.05
1.05
1.05
1.06
1.06
1.06
1.07
1.07
1765
1790
1815
1840
1865
1890
1915
1940
1.01
1.01
1.01
1.02
1.02
1.02
1.03
1.03
0.92
0.93
0.93
0.94
0.94
0.95
0.95
0.96
0.96
0.97
0.97
0.98
0.98
0.98
0.99
0.99
1.00
1.00
A-104
A-105
A-108
A-110
A-112
A-118
A-120
A-124
A-128
A-130
A-134
A-136
A-140
A-144
A-147
A-158
A-173
A-180
2680
2705
2780
2830
2880
3035
3085
3185
3290
3340
3440
3490
3590
3695
3770
4050
4430
4610
1.12
1.12
1.13
1.13
1.14
1.15
1.16
1.17
1.18
1.18
1.19
1.19
1.20
1.21
1.21
1.23
1.26
1.27
ISO Corr.
datum factor length C
L mm
HP
6
Design kW
(A + B + C) x G x C
L
Number of belts required =
69
POWER RATINGS HI-POWER
®
Basic kW per belt
HP
6
70
C
112 118 125 132 140 150 160 170 180 190 200 212 224 236 250 280 315
RPM of faster shaft
585 1.61
1.82
2.07
2.31
2.59
2.93
3.27
3.61
3.94
4.28
4.61
5.00
5.39
5.78
6.23
7.18
8.27
700 1.85
2.10
2.38
2.67
2.99
3.39
3.79
4.19
4.58
4.97
5.35
5.81
6.27
6.72
7.24
7.55
8.70
725 1.90
2.15
2.45
2.74
3.08
3.49
3.90
4.31
4.71
5.12
5.51
5.99
6.46
6.92
7.46
7.77
8.95
870 2.17
2.47
2.82
3.17
3.56
4.04
4.52
5.00
5.47
5.94
6.40
6.96
7.50
8.04
8.66
8.98 10.32
950 2.32
2.64
3.02
3.39
3.81
4.34
4.85
5.37
5.87
6.38
6.88
7.47
8.05
8.63
9.29
9.60 11.03
1160 2.67
3.05
3.50
3.94
4.44
5.06
5.67
6.28
6.88
7.46
8.05
8.74
9.41 10.08
10.84 11.11 12.70
1450 3.10
3.57
4.10
4.64
5.24
5.98
6.70
7.42
8.13
8.82
9.50 10.30 11.09 11.85
12.72 12.85 14.54
1750 3.49
4.03
4.65
5.27
5.96
6.81
7.65
8.46
9.26 10.04 10.80 11.69 12.55 13.38
14.31 14.16 15.79
2850 4.36
5.12
5.98
6.81
7.74
8.84
9.89 10.87 11.80 12.66 13.45
14.30 15.05 15.69
16.28
3450 4.46
5.28
6.21
7.09
8.05
9.16 10.18
11.10 11.91 12.61 13.19 13.73
50 0.21
0.24
0.26
0.29
0.32
0.35
0.39
0.43
0.46
0.50
0.53
0.58
0.62
0.66
0.71
0.76
0.87
100 0.39
0.43
0.48
0.53
0.58
0.65
0.72
0.79
0.85
0.92
0.99
1.07
1.15
1.23
1.32
1.40
1.62
150 0.54
0.60
0.67
0.74
0.82
0.92
1.02
1.12
1.22
1.32
1.42
1.53
1.65
1.76
1.90
2.01
2.32
200 0.69
0.77
0.86
0.95
1.05
1.18
1.31
1.44
1.57
1.70
1.82
1.97
2.12
2.27
2.45
2.59
2.99
250 0.82
0.92
1.03
1.15
1.27
1.43
1.59
1.75
1.91
2.06
2.22
2.40
2.59
2.77
2.98
3.15
3.63
300 0.95
1.07
1.20
1.34
1.49
1.67
1.86
2.05
2.23
2.41
2.60
2.82
3.03
3.25
3.50
3.69
4.26
350 1.08
1.21
1.36
1.52
1.69
1.91
2.12
2.34
2.55
2.76
2.97
3.22
3.47
3.72
4.00
4.21
4.87
400 1.20
1.35
1.52
1.69
1.89
2.13
2.38
2.62
2.86
3.09
3.33
3.61
3.89
4.17
4.50
4.73
5.46
450 1.32
1.48
1.67
1.87
2.09
2.36
2.63
2.89
3.16
3.42
3.69
4.00
4.31
4.62
4.98
5.23
6.03
500 1.43
1.61
1.82
2.03
2.27
2.57
2.87
3.16
3.45
3.74
4.03
4.38
4.72
5.06
5.45
5.71
6.59
550 1.54
1.74
1.97
2.20
2.46
2.78
3.11
3.43
3.74
4.06
4.37
4.75
5.12
5.49
5.91
6.19
7.14
600 1.64
1.86
2.11
2.36
2.64
2.99
3.34
3.68
4.03
4.37
4.71
5.11
5.51
5.91
6.36
6.65
7.68
650 1.75
1.98
2.25
2.51
2.82
3.19
3.57
3.94
4.31
4.67
5.03
5.47
5.89
6.32
6.81
7.11
8.20
700 1.85
2.10
2.38
2.67
2.99
3.39
3.79
4.19
4.58
4.97
5.35
5.81
6.27
6.72
7.24
7.55
8.70
750 1.95
2.21
2.51
2.82
3.16
3.59
4.01
4.43
4.85
5.26
5.67
6.16
6.64
7.12
7.67
7.98
9.20
800
850
900
950
2.04
2.14
2.23
2.32
2.32
2.43
2.54
2.64
2.64
2.77
2.89
3.02
2.97
3.11
3.25
3.39
3.33
3.49
3.65
3.81
3.78
3.97
4.15
4.34
4.23
4.44
4.65
4.85
4.67
4.91
5.14
5.37
A
5.11
5.37
5.62
5.87
5.55
5.83
6.11
6.38
5.98
6.28
6.58
6.88
6.49
6.82
7.15
7.47
7.00
7.36
7.71
8.05
7.51
7.89
8.26
8.63
8.09
8.50
8.90
9.29
8.40
9.68
8.81 10.14
9.21 10.59
9.60 11.03
1000 2.40
2.74
3.14
3.52
3.97
4.51
5.05
5.59
6.12
6.64
7.16
7.78
8.39
8.99
9.68
9.98 11.45
1050 2.49
2.84
3.25
3.66
4.12
4.69
5.25
5.81
6.36
6.91
7.45
8.08
8.71
9.34
10.05 10.35 11.86
1100 2.57
2.94
3.37
3.79
4.27
4.86
5.45
6.02
6.60
7.16
7.72
8.38
9.04
9.68
10.42 10.70 12.25
1150 2.65
3.04
3.48
3.92
4.41
5.03
5.64
6.24
6.83
7.41
7.99
8.68
9.35 10.01
10.77 11.05 12.63
1200 2.73
3.13
3.59
4.04
4.56
5.19
5.82
6.44
7.06
7.66
8.26
8.96
9.66 10.34
11.12 11.38 12.99
1250 2.81
3.22
3.70
4.17
4.70
5.36
6.01
6.65
7.28
7.90
8.52
9.25
9.96 10.66
11.46 11.70 13.33
1300 2.89
3.31
3.80
4.29
4.84
5.52
6.19
6.85
7.50
8.14
8.77
9.52 10.25 10.97
11.79 12.00 13.66
1350 2.96
3.40
3.90
4.41
4.97
5.67
6.36
7.04
7.71
8.37
9.02
9.79 10.54 11.27
12.11 12.30 13.97
1400 3.03
3.48
4.00
4.52
5.11
5.83
6.54
7.23
7.92
8.60
9.27 10.05 10.82 11.57
12.42 12.58 14.27
1450 3.10
3.57
4.10
4.64
5.24
5.98
6.70
7.42
8.13
8.82
9.50 10.30 11.09 11.85
12.72 12.85 14.54
1500 3.17
3.65
4.20
4.75
5.36
6.12
6.87
7.61
8.33
9.04
9.73 10.55 11.35 12.13
13.01 13.10 14.80
1600 3.30
3.81
4.39
4.96
5.61
6.41
7.19
7.96
8.72
9.45 10.18 11.03 11.85 12.66
13.56 13.57 15.25
1700 3.43
3.96
4.57
5.17
5.85
6.68
7.50
8.30
9.08
9.85 10.60 11.48 12.32 13.15
14.07 13.98 15.63
1800 3.54
4.10
4.73
5.36
6.07
6.94
7.79
8.62
9.43 10.22 11.00 11.89 12.76 13.60
14.53 14.33 15.93
1900 3.66
4.23
4.90
5.55
6.29
7.19
8.07
8.93
9.76 10.58 11.37 12.28 13.17 14.01
14.95 14.62
16.14
2000 3.76
4.36
5.05
5.73
6.49
7.42
8.33
9.21 10.07 10.90 11.71 12.64 13.53 14.38
15.32 14.84
16.26
2100 3.86
4.48
5.19
5.89
6.68
7.64
8.57
9.48 10.36 11.21 12.03 12.97 13.86 14.71
15.64
15.00 16.28
2200 3.95
4.59
5.33
6.05
6.86
7.85
8.80
9.73 10.63 11.49 12.32 13.26 14.16 15.00
15.91
15.08 16.21
2300 4.03
4.69
5.45
6.20
7.03
8.04
9.02
9.96 10.87 11.74 12.57 13.52 14.41 15.24
16.12 15.10 16.04
2400 4.11
4.79
5.57
6.33
7.19
8.22
9.22 10.17 11.09 11.97 12.80 13.75 14.63 15.43
16.29 15.04 15.76
2500 4.18
4.88
5.68
6.46
7.33
8.38
9.40 10.37 11.29 12.17 13.00 13.94 14.80
15.58
16.39 14.90
2600 4.24
4.96
5.78
6.57
7.46
8.53
9.56 10.54 11.47 12.35 13.17 14.09
14.93 15.68
16.44 14.68
2700 4.29
5.03
5.86
6.68
7.58
8.67
9.70 10.69 11.62 12.49 13.31 14.20
15.01 15.72
16.42 14.37
2800 4.34
5.09
5.94
6.77
7.69
8.79
9.83 10.82 11.74 12.61 13.41
14.28 15.05 15.71
16.35
2900 4.38
5.14
6.01
6.85
7.78
8.89
9.94 10.93 11.84 12.70
13.48 14.31 15.04 15.65
16.21
3000 4.41
5.19
6.07
6.92
7.86
8.98 10.03 11.01 11.92 12.75
13.51 14.31 14.98 15.53
16.00
3100 4.43
5.22
6.12
6.98
7.93
9.05 10.10 11.07 11.97
12.78 13.50 14.26 14.88 15.35
3200 4.45
5.25
6.16
7.03
7.98
9.10 10.15 11.11
11.99 12.77 13.46 14.17 14.72 15.12
3300 4.46
5.27
6.18
7.06
8.02
9.14 10.18 11.12
11.98 12.73 13.38 14.03 14.51
3400 4.46
5.28
6.20
7.08
8.04
9.16 10.18
11.11 11.94 12.66 13.27 13.84 14.24
3500 4.45
5.28
6.21
7.09
8.05
9.16 10.17
11.07 11.87 12.55 13.11 13.61
For speeds over 30 m/s we recommend that pulleys be dynamically balanced.
Additional kW per belt for belt life
6000 Hrs
d x RPM
261096
25000 Hrs
d x RPM
246609
12000 Hrs
0
B
POWER RATINGS HI-POWER
®
Additional kW per belt for speed ratio Arc of contact correction factor G
RPM of faster shaft
1 1.02
1.04
1.07
1.09
1.13
1.17
1.23
1.33 >1.5
to to to to to to to to to
1.01
1.03
1.06
1.08
1.12
1.16
1.22
1.32
1.5
585 0.00
0.03
0.05
0.08
0.10
0.13
0.15
0.18
0.21
0.23
700 0.00
0.03
0.06
0.09
0.12
0.15
0.18
0.22
0.25
0.28
725 0.00
0.03
0.06
0.10
0.13
0.16
0.19
0.22
0.26
0.29
870 0.00
0.04
0.08
0.11
0.15
0.19
0.23
0.27
0.31
0.34
950 0.00
0.04
0.08
0.13
0.17
0.21
0.25
0.29
0.33
0.38
1160 0.00
0.05
0.10
0.15
0.20
0.26
0.31
0.36
0.41
0.46
1450 0.00
0.06
0.13
0.19
0.25
0.32
0.38
0.45
0.51
0.57
1750 0.00
0.08
0.15
0.23
0.31
0.38
0.46
0.54
0.62
0.69
2850 0.00
0.13
0.25
0.38
0.50
0.63
0.75
0.88
1.00
1.13
3450 0.00
0.15
0.30
0.46
0.61
0.76
0.91
1.06
1.21
1.36
50 0.00
0.00
0.00
0.01
0.01
0.01
0.01
0.02
0.02
0.02
100 0.00
0.00
0.01
0.01
0.02
0.02
0.03
0.03
0.04
0.04
150 0.00
0.01
0.01
0.02
0.03
0.03
0.04
0.05
0.05
0.06
200 0.00
0.01
0.02
0.03
0.04
0.04
0.05
0.06
0.07
0.08
250 0.00
0.01
0.02
0.03
0.04
0.05
0.07
0.08
0.09
0.10
300 0.00
0.01
0.03
0.04
0.05
0.07
0.08
0.09
0.11
0.12
350 0.00
0.02
0.03
0.05
0.06
0.08
0.09
0.11
0.12
0.14
400 0.00
0.02
0.04
0.05
0.07
0.09
0.11
0.12
0.14
0.16
450 0.00
0.02
0.04
0.06
0.08
0.10
0.12
0.14
0.16
0.18
500 0.00
0.02
0.04
0.07
0.09
0.11
0.13
0.15
0.18
0.20
550 0.00
0.02
0.05
0.07
0.10
0.12
0.15
0.17
0.19
0.22
600 0.00
0.03
0.05
0.08
0.11
0.13
0.16
0.18
0.21
0.24
650
700
750
800
0.00
0.00
0.00
0.00
0.03
0.03
0.03
0.04
0.06
0.06
0.07
0.07
0.09
0.09
0.10
0.11
B
0.11
0.12
0.13
0.14
0.14
0.15
0.16
0.18
0.17
0.18
0.20
0.21
0.20
0.22
0.23
0.25
0.23
0.25
0.26
0.28
0.26
0.28
0.30
0.32
850 0.00
0.04
0.07
0.11
0.15
0.19
0.22
0.26
0.30
0.34
900 0.00
0.04
0.08
0.12
0.16
0.20
0.24
0.28
0.32
0.36
950 0.00
0.04
0.08
0.13
0.17
0.21
0.25
0.29
0.33
0.38
1000 0.00
0.04
0.09
0.13
0.18
0.22
0.26
0.31
0.35
0.40
1050 0.00
0.05
0.09
0.14
0.18
0.23
0.28
0.32
0.37
0.42
1100 0.00
0.05
0.10
0.15
0.19
0.24
0.29
0.34
0.39
0.44
1150 0.00
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.40
0.45
1200 0.00
0.05
0.11
0.16
0.21
0.26
0.32
0.37
0.42
0.47
1250 0.00
0.05
0.11
0.17
0.22
0.27
0.33
0.38
0.44
0.49
1300 0.00
0.06
0.11
0.17
0.23
0.29
0.34
0.40
0.46
0.51
1350 0.00
0.06
0.12
0.18
0.24
0.30
0.36
0.42
0.48
0.53
1400 0.00
0.06
0.12
0.19
0.25
0.31
0.37
0.43
0.49
0.55
1450 0.00
0.06
0.13
0.19
0.25
0.32
0.38
0.45
0.51
0.57
1500 0.00
0.07
0.13
0.20
0.26
0.33
0.40
0.46
0.53
0.59
1600 0.00
0.07
0.14
0.21
0.28
0.35
0.42
0.49
0.56
0.63
1700 0.00
0.07
0.15
0.22
0.30
0.37
0.45
0.52
0.60
0.67
1800 0.00
0.08
0.16
0.24
0.32
0.40
0.48
0.55
0.63
0.71
1900 0.00
0.08
0.17
0.25
0.33
0.42
0.50
0.58
0.67
0.75
2000 0.00
0.09
0.18
0.26
0.35
0.44
0.53
0.62
0.70
0.79
2100 0.00
0.09
0.18
0.28
0.37
0.46
0.55
0.65
0.74
0.83
2200 0.00
0.10
0.19
0.29
0.39
0.48
0.58
0.68
0.77
0.87
2300 0.00
0.10
0.20
0.30
0.40
0.51
0.61
0.71
0.81
0.91
2400 0.00
0.11
0.21
0.32
0.42
0.53
0.63
0.74
0.84
0.95
2500 0.00
0.11
0.22
0.33
0.44
0.55
0.66
0.77
0.88
0.99
2600 0.00
0.11
0.23
0.34
0.46
0.57
0.69
0.80
0.91
1.03
2700 0.00
0.12
0.24
0.36
0.47
0.59
0.71
0.83
0.95
1.07
2800 0.00
0.12
0.25
0.37
0.49
0.62
0.74
0.86
0.99
1.11
2900 0.00
0.13
0.26
0.38
0.51
0.64
0.77
0.89
1.02
1.15
3000 0.00
0.13
0.26
0.40
0.53
0.66
0.79
0.92
1.06
1.19
3100 0.00
0.14
0.27
0.41
0.55
0.68
0.82
0.95
1.09
1.23
3200 0.00
0.14
0.28
0.42
0.56
0.70
0.84
0.98
1.13
1.27
3300 0.00
0.15
0.29
0.44
0.58
0.73
0.87
1.01
1.16
1.31
3400 0.00
0.15
0.30
0.45
0.60
0.75
0.90
1.05
1.20
1.35
3500 0.00
0.15
0.31
0.46
0.62
0.77
0.92
1.08
1.23
1.38
D - d
A
Arc of contact on small pulley
(degrees)
0.00
0.10
180
174
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.00
1.10
1.20
1.30
1.40
1.50
169
163
157
151
145
139
G
113
106
99
91
83
0.91
0.89
0.87
0.85
0.82
0.80
0.77
0.73
0.70
0.65
1.00
0.99
0.97
0.96
0.94
0.93
Factor G
Belt length correction factor C
L
Belt ref.
Belt ref.
ISO Corr.
datum factor length C
L mm
B-25
B-26
B-27
B-27 1/2
B-28
B-29
B-30
B-31
B-32
B-33
695
710
735
745
770
795
815
845
870
895
0.70
0.70
0.71
0.72
0.72
0.73
0.74
0.75
0.76
0.76
B-84
B-85
B-86
B-87
B-88
B-89
B-90
B-91
B-92
B-93
B-72
B-73
B-74
B-75
B-76
B-77
B-78
B-79
B-80
B-81
B-82
B-83
B-60
B-61
B-62
B-63
B-64
B-65
B-66
B-67
B-68
B-69
B-70
B-71
1880
1905
1930
1955
1980
2005
2030
2060
2085
2110
2135
2160
1575
1600
1625
1650
1675
1700
1730
1755
1780
1805
1830
1855
B-59 1550
B-35
B-36
B-37
B-38
B-39
B-40
B-41
B-42
B-43
B-44
B-45
B-46
B-47
B-48
B-49
B-50
B-51
B-52
B-53
B-54
B-55
B-56
B-57
B-58
920
940
965
990
1015
1040
1065
1095
1120
1145
1170
1195
1220
1245
1270
1295
1320
1345
1370
1395
1425
1450
1475
1500
1525
B-34
C
0.77
0.78
0.78
0.79
0.79
0.80
0.81
0.81
0.82
0.83
0.83
0.84
0.84
0.85
0.85
0.86
0.86
0.87
0.87
0.88
0.88
0.89
0.89
0.89
0.90
B-94
B-95
B-96
B-97
B-98
B-99
B-100
B-102
B-103
B-104
B-105
B-106
B-108
B-110
B-112
B-114
B-116
B-118
B-120
B-124
B-128
B-131
B-133
B-134
B-136
B-140 0.90
0.95
0.95
0.96
0.96
0.96
0.97
0.97
0.97
0.98
0.98
0.98
0.99
0.91
0.91
0.91
0.92
0.92
0.93
0.93
0.93
0.94
0.94
0.94
0.95
B-144
B-147
B-148
B-152
B-157
B-158
B-162
B-165
B-167
B-173
B-177
B-180
B-186
B-195
B-196
B-208
B-210
B-221
B-225
B-240
B-249
B-270
B-300
5005
5030
5335
5385
5625
5730
6110
6340
6870
7635
4040
4065
4165
4240
4295
4445
4545
4625
4775
2845
L
2895
2945
3000
3050
3100
3200
3300
3380
3430
3455
3505
3610
3710
3785
3810
3910
1.06
1.06
1.06
1.07
1.07
1.08
1.09
1.09
1.10
1.10
1.10
1.11
1.12
1.12
1.13
1.13
1.14
1.20
1.20
1.21
1.22
1.23
1.23
1.25
1.26
1.28
1.31
1.14
1.15
1.15
1.16
1.16
1.17
1.17
1.18
1.19
2415
2440
2465
2490
2515
2540
2565
2590
2640
2665
2695
2720
2745
2795
2185
2210
2235
2260
2285
2310
2335
2365
2390
1.01
1.02
1.02
1.02
1.02
1.03
1.03
1.03
1.04
1.04
1.04
1.04
1.05
1.05
0.99
0.99
0.99
1.00
1.00
1.00
1.01
1.01
1.01
ISO Corr.
datum factor length C
L mm
HP
6
Number of belts required =
Design kW
(A + B + C) x G x C
L
71
POWER RATINGS HI-POWER
®
Basic kW per belt
HP
6
72
C
180 190 200 212 224 236 250 265 280 300 315 335 355 375 400 425
RPM of faster shaft
585 4.69
5.22
5.74
6.37
6.99
7.60
8.32
9.07
9.82 10.81 11.55 12.51 13.47 14.42
15.58 16.73
700 5.40
6.02
6.63
7.36
8.08
8.80
9.63 10.51 11.38 12.52 13.37 14.48 15.58 16.66
17.98 19.28
725 5.55
6.19
6.82
7.57
8.31
9.05
9.90 10.81 11.70 12.88 13.75 14.89 16.02 17.12
18.48 19.81
870 6.38
7.12
7.86
8.73
9.60 10.45 11.44 12.48 13.51 14.86 15.85 17.15 18.42 19.66
21.18 22.64
950 6.81
7.61
8.40
9.34 10.27 11.18 12.24 13.35 14.44 15.88 16.93 18.30 19.64 20.94
22.52 24.04
1160 7.86
8.80
9.72 10.81 11.89 12.95 14.16 15.44 16.68 18.30 19.48 20.99 22.46 23.86
25.53 27.09
1450 9.10 10.21 11.29 12.56 13.81 15.02 16.41 17.84 19.22 20.98 22.24 23.84 25.33 26.71
28.27 29.66
1750 10.13 11.37 12.58 14.00 15.36 16.68 18.16 19.66 21.09 22.85 24.07 25.55
26.86 27.98
29.11 29.93
2850 11.35 12.72 13.97
15.33 16.52 17.53 18.47 19.19
3450 9.99 11.10 12.02 12.88
50 0.59
0.65
0.70
0.77
0.84
0.90
0.98
1.06
1.14
1.25
1.33
1.44
1.54
1.65
1.78
1.92
100 1.08
1.18
1.29
1.41
1.54
1.67
1.81
1.97
2.12
2.32
2.48
2.68
2.88
3.08
3.33
3.58
150 1.52
1.68
1.83
2.01
2.19
2.38
2.59
2.81
3.04
3.33
3.55
3.85
4.14
4.43
4.79
5.15
200 1.94
2.14
2.34
2.58
2.82
3.05
3.33
3.62
3.91
4.30
4.58
4.96
5.34
5.72
6.19
6.65
250 2.34
2.59
2.83
3.12
3.41
3.70
4.04
4.40
4.75
5.22
5.57
6.04
6.50
6.96
7.53
8.10
300 2.72
3.01
3.30
3.65
3.99
4.33
4.73
5.15
5.57
6.12
6.54
7.08
7.63
8.17
8.84
9.50
350 3.09
3.43
3.76
4.16
4.55
4.94
5.40
5.88
6.36
7.00
7.47
8.10
8.72
9.34
10.10 10.86
400 3.45
3.83
4.20
4.65
5.09
5.53
6.05
6.59
7.13
7.85
8.38
9.08
9.78 10.47
11.33 12.18
450 3.80
4.22
4.63
5.13
5.62
6.11
6.68
7.28
7.88
8.67
9.26 10.04 10.82 11.58
12.53 13.46
500 4.14
4.60
5.05
5.60
6.14
6.68
7.30
7.96
8.62
9.48 10.13 10.98 11.82 12.66
13.69 14.71
550 4.47
4.97
5.46
6.06
6.64
7.23
7.90
8.62
9.33 10.27 10.97 11.89 12.80 13.70
14.81 15.91
600 4.79
5.33
5.86
6.50
7.13
7.76
8.49
9.26 10.03 11.04 11.79 12.78 13.75 14.72
15.90 17.07
650 5.10
5.68
6.25
6.94
7.61
8.29
9.07
9.89 10.71 11.79 12.59 13.64 14.68 15.70
16.96 18.20
700 5.40
6.02
6.63
7.36
8.08
8.80
9.63 10.51 11.38 12.52 13.37 14.48 15.58 16.66
17.98 19.28
750 5.70
6.35
7.00
7.78
8.54
9.30 10.18 11.11 12.02 13.23 14.12 15.29 16.45 17.58
18.97 20.32
800
850
900
950
5.99
6.27
6.54
6.81
6.68
7.00
7.31
7.61
7.37
7.72
8.06
8.40
8.18
8.58
8.96
8.99
A
19.91 21.32
20.82 22.27
21.69 23.18
22.52 24.04
1000 7.07
7.90
8.73
9.71 10.67 11.62 12.72 13.87 15.01 16.49 17.57 18.99 20.36 21.70
23.31 24.85
1050 7.33
8.19
9.05 10.06 11.06 12.05 13.19 14.38 15.55 17.08 18.19 19.65 21.05 22.42
24.05 25.61
1100 7.57
8.47
9.36 10.41 11.45 12.47 13.64 14.87 16.08 17.65 18.79 20.28 21.71 23.10
24.75 26.32
1150 7.81
8.74
9.66 10.75 11.82 12.87 14.08 15.35 16.58 18.19 19.36 20.88 22.34 23.74
25.40 26.97
1200 8.05
9.01
9.95 11.08 12.18 13.26 14.50 15.80 17.07 18.72 19.91 21.45 22.93 24.34
26.01 27.57
1250 8.27
9.26 10.24 11.39 12.53 13.64 14.91 16.25 17.54 19.22 20.43 21.99 23.48 24.90
26.56 28.11
1300 8.49
9.51 10.51 11.70 12.87 14.01 15.31 16.67 17.99 19.70 20.93 22.50 24.00 25.42
27.07 28.59
1350 8.70
9.75 10.78 12.00 13.19 14.36 15.69 17.08 18.42 20.15 21.39 22.98 24.48 25.89
27.53
29.01
1400 8.91
9.98 11.04 12.29 13.51 14.70 16.06 17.47 18.83 20.58 21.83 23.42 24.92 26.32
27.93
29.36
1450 9.10 10.21 11.29 12.56 13.81 15.02 16.41 17.84 19.22 20.98 22.24 23.84 25.33 26.71
28.27 29.66
1500 9.29 10.42 11.53 12.83 14.10 15.34 16.74 18.19 19.59 21.36 22.63 24.21 25.69 27.04
28.56 29.88
1550 9.48 10.63 11.76 13.08 14.38 15.63 17.06 18.52 19.93 21.72 22.98 24.55 26.01
27.33
28.80 30.04
1600 9.65 10.83 11.98 13.33 14.64 15.92 17.36 18.84 20.26 22.04 23.30 24.86 26.29
27.57
28.97 30.12
1650 9.82 11.02 12.19 13.56 14.89 16.19 17.64 19.13 20.56 22.34 23.59 25.13
26.52 27.76
29.08 30.13
1700 9.98 11.20 12.39 13.78 15.13 16.44 17.91 19.41 20.83 22.61 23.84 25.36
26.71 27.90
29.13 30.07
1750 10.13 11.37 12.58 14.00 15.36 16.68 18.16 19.66 21.09 22.85 24.07
25.55 26.86 27.98
29.11 29.93
1800 10.28 11.54 12.77 14.19 15.57 16.90 18.39 19.90 21.31 23.06 24.26
25.70 26.95 28.01
29.03
1850 10.42 11.69 12.94 14.38 15.77 17.11 18.60 20.11 21.52 23.24
24.42 25.81 27.00 27.98
28.88
1900 10.55 11.84 13.10 14.56 15.96 17.30 18.79 20.30 21.70 23.40
24.54 25.88 27.00 27.89
28.67
1950 10.67 11.98 13.25 14.72 16.13 17.48 18.97 20.46 21.85
23.52 24.63 25.91 26.95 27.75
2000 10.78 12.11 13.39 14.87 16.29 17.64 19.13 20.61 21.98
23.60 24.67 25.89 26.85 27.55
2100 10.98 12.33 13.64 15.13 16.56 17.91 19.38 20.83
22.15 23.68 24.66 25.72 26.49
2200 11.15 12.52 13.84 15.35 16.77 18.11 19.55
20.96 22.21 23.63 24.49 25.37
2300 11.29 12.67 14.00 15.50 16.92 18.23
19.64 20.98 22.15 23.43 24.16
2400 11.38 12.78 14.11 15.61 17.00 18.28
19.64 20.91 21.98 23.08 23.66
2500 11.44 12.84 14.17 15.65 17.02
18.26 19.55 20.72 21.68 22.59
2600 11.47 12.86 14.18 15.64
16.96 18.16 19.36 20.43 21.25
2700 11.45 12.84 14.14 15.56
16.84 17.97 19.08 20.02 20.68
2800 11.40 12.77 14.04
15.42 16.65 17.70 18.70 19.49
2900 11.30 12.65
13.89 15.22 16.37 17.34 18.22
3000 11.16 12.49
13.69 14.95 16.03 16.89 17.63
For speeds over 30 m/s we recommend that pulleys be dynamically balanced.
Additional kW per belt for belt life
6000 Hrs
d x RPM
172176
25000 Hrs
d x RPM
162549
12000 Hrs
0
C
POWER RATINGS HI-POWER
®
Additional kW per belt for speed ratio Arc of contact correction factor G
RPM of faster shaft
1 1.02
1.04
1.07
1.09
1.13
1.17
1.23
1.33 >1.5
to to to to to to to to to
1.01
1.03
1.06
1.08
1.12
1.16
1.22
1.32
1.5
585 0.00
0.06
0.11
0.17
0.22
0.28
0.33
0.39
0.44
0.50
700 0.00
0.07
0.13
0.20
0.26
0.33
0.40
0.46
0.53
0.59
725 0.00
0.07
0.14
0.21
0.27
0.34
0.41
0.48
0.55
0.61
870 0.00
0.08
0.16
0.25
0.33
0.41
0.49
0.57
0.66
0.74
950 0.00
0.09
0.18
0.27
0.36
0.45
0.54
0.63
0.72
0.81
1160 0.00
0.11
0.22
0.33
0.44
0.55
0.66
0.76
0.87
0.98
1450 0.00
0.14
0.27
0.41
0.55
0.68
0.82
0.96
1.09
1.23
1750 0.00
0.17
0.33
0.50
0.66
0.82
0.99
1.15
1.32
1.48
2850 0.00
0.27
0.54
0.81
1.07
1.34
1.61
1.88
2.15
2.42
3450 0.00
0.33
0.65
0.98
1.30
1.63
1.95
2.27
2.60
2.93
50 0.00
0.00
0.01
0.01
0.02
0.02
0.03
0.03
0.04
0.04
100 0.00
0.01
0.02
0.03
0.04
0.05
0.06
0.07
0.08
0.08
150 0.00
0.01
0.03
0.04
0.06
0.07
0.08
0.10
0.11
0.13
200 0.00
0.02
0.04
0.06
0.08
0.09
0.11
0.13
0.15
0.17
250 0.00
0.02
0.05
0.07
0.09
0.12
0.14
0.16
0.19
0.21
300 0.00
0.03
0.06
0.08
0.11
0.14
0.17
0.20
0.23
0.25
350 0.00
0.03
0.07
0.10
0.13
0.16
0.20
0.23
0.26
0.30
400 0.00
0.04
0.08
0.11
0.15
0.19
0.23
0.26
0.30
0.34
450 0.00
0.04
0.08
0.13
0.17
0.21
0.25
0.30
0.34
0.38
500 0.00
0.05
0.09
0.14
0.19
0.24
0.28
0.33
0.38
0.42
550 0.00
0.05
0.10
0.16
0.21
0.26
0.31
0.36
0.41
0.47
600 0.00
0.06
0.11
0.17
0.23
0.28
0.34
0.40
0.45
0.51
650
700
750
800
0.00
0.00
0.00
0.00
0.06
0.07
0.07
0.08
0.12
0.13
0.14
0.15
0.18
0.20
0.21
0.23
B
0.24
0.26
0.28
0.30
0.31
0.33
0.35
0.38
0.37
0.40
0.42
0.45
0.43
0.46
0.49
0.53
0.49
0.53
0.57
0.60
0.55
0.59
0.64
0.68
850 0.00
0.08
0.16
0.24
0.32
0.40
0.48
0.56
0.64
0.72
900 0.00
0.08
0.17
0.25
0.34
0.42
0.51
0.59
0.68
0.76
950 0.00
0.09
0.18
0.27
0.36
0.45
0.54
0.63
0.72
0.81
1000 0.00
0.09
0.19
0.28
0.38
0.47
0.57
0.66
0.75
0.85
1050 0.00
0.10
0.20
0.30
0.40
0.49
0.59
0.69
0.79
0.89
1100 0.00
0.10
0.21
0.31
0.41
0.52
0.62
0.73
0.83
0.93
1150 0.00
0.11
0.22
0.33
0.43
0.54
0.65
0.76
0.87
0.98
1200 0.00
0.11
0.23
0.34
0.45
0.57
0.68
0.79
0.91
1.02
1250 0.00
0.12
0.24
0.35
0.47
0.59
0.71
0.82
0.94
1.06
1300 0.00
0.12
0.25
0.37
0.49
0.61
0.74
0.86
0.98
1.10
1350 0.00
0.13
0.25
0.38
0.51
0.64
0.76
0.89
1.02
1.14
1400 0.00
0.13
0.26
0.40
0.53
0.66
0.79
0.92
1.06
1.19
1450 0.00
0.14
0.27
0.41
0.55
0.68
0.82
0.96
1.09
1.23
1500 0.00
0.14
0.28
0.42
0.57
0.71
0.85
0.99
1.13
1.27
1550 0.00
0.15
0.29
0.44
0.58
0.73
0.88
1.02
1.17
1.31
1600 0.00
0.15
0.30
0.45
0.60
0.75
0.91
1.05
1.21
1.36
1650 0.00
0.16
0.31
0.47
0.62
0.78
0.93
1.09
1.24
1.40
1700 0.00
0.16
0.32
0.48
0.64
0.80
0.96
1.12
1.28
1.44
1750 0.00
0.17
0.33
0.50
0.66
0.82
0.99
1.15
1.32
1.48
1800 0.00
0.17
0.34
0.51
0.68
0.85
1.02
1.19
1.36
1.53
1850 0.00
0.17
0.35
0.52
0.70
0.87
1.05
1.22
1.40
1.57
1900 0.00
0.18
0.36
0.54
0.72
0.90
1.08
1.25
1.43
1.61
1950 0.00
0.18
0.37
0.55
0.73
0.92
1.10
1.29
1.47
1.65
2000 0.00
0.19
0.38
0.57
0.75
0.94
1.13
1.32
1.51
1.70
2100 0.00
0.20
0.40
0.59
0.79
0.99
1.19
1.38
1.58
1.78
2200 0.00
0.21
0.42
0.62
0.83
1.04
1.24
1.45
1.66
1.87
2300 0.00
0.22
0.43
0.65
0.87
1.08
1.30
1.52
1.73
1.95
2400 0.00
0.23
0.45
0.68
0.90
1.13
1.36
1.58
1.81
2.04
2500 0.00
0.24
0.47
0.71
0.94
1.18
1.41
1.65
1.89
2.12
2600 0.00
0.25
0.49
0.74
0.98
1.23
1.47
1.71
1.96
2.20
2700 0.00
0.25
0.51
0.76
1.02
1.27
1.53
1.78
2.04
2.29
2800 0.00
0.26
0.53
0.79
1.06
1.32
1.58
1.85
2.11
2.37
2900 0.00
0.27
0.55
0.82
1.09
1.37
1.64
1.91
2.19
2.46
3000 0.00
0.28
0.57
0.85
1.13
1.41
1.70
1.98
2.26
2.54
D - d
A
Arc of contact on small pulley
(degrees)
0.00
0.10
180
174
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.00
1.10
1.20
1.30
1.40
1.50
169
163
157
151
145
139
G
113
106
99
91
83
0.91
0.89
0.87
0.85
0.82
0.80
0.77
0.73
0.70
0.65
1.00
0.99
0.97
0.96
0.94
0.93
Factor G
Belt length correction factor C
L
Belt ref.
Belt ref.
ISO Corr.
datum factor length C
L mm
C-95
C-96
C-97
C-98
C-88
C-90
C-92
C-93
C-42 1145 0.74
C-108 2815 0.94
C-110 2865 0.95
C-112 2920 0.95
C-115 2995 0.96
C-43
C-46
C-48
C-49
1165 0.74
1245 0.76
1290 0.77
1320 0.77
C-116 3020 0.96
C-118 3070 0.96
C-51 1370 0.78
C-82
C-83
C-85
C-70
C-71
C-72
C-74
C-75
C-78
C-81
C-53
C-54
C-55
C-59
C-60
C-62
C-65
C-66
C-68
1420 0.79
1445 0.79
1470 0.79
1570 0.81
1595 0.81
1650 0.82
1725
1750
1800
C
0.83
0.83
0.84
1850 0.85
1875 0.85
1900 0.85
1950 0.86
1980 0.86
2055 0.87
2130 0.88
C-120 3120 0.96
C-124 3225 0.97
C-128 3325 0.98
C-132 3425 0.99
C-134 3475 0.99
C-136 3525 0.99
C-140 3630 1.00
C-144 3730 1.01
C-147 3805 1.01
C-153 3960 1.02
C-158 4085 1.03
C-162 4190 1.03
C-165
C-173
C-177
4265
4465
4570
L
1.04
1.05
1.05
C-180 4645 1.05
C-195 5025 1.07
C-208 5355 1.09
C-210 5405 1.09
2155 0.88
2180 0.88
2230 0.89
2310 0.90
2360 0.90
2410 0.91
2435 0.91
C-222 5660 1.10
C-225 5735 1.10
C-238 6065 1.11
C-240 6120 1.12
C-250 6370 1.13
C-255 6500 1.13
C-265 6755 1.14
C-270 6880 1.14
2485 0.91
2510 0.92
2535 0.92
2560 0.92
C-99 2590 0.92
C-100 2610 0.92
C-102 2665 0.93
C-104 2715 0.93
C-105 2740 0.94
C-280 7135 1.15
C-285 7260 1.16
C-300 7640 1.17
C-330 8405 1.19
ISO Corr.
datum factor length C
L mm
HP
6
Number of belts required =
Design kW
(A + B + C) x G x C
L
73
POWER RATINGS HI-POWER
®
HP
6
Basic kW per belt
300 315 335 355 375 400 425 450 475 500 530 560 600 630 670 710 750
RPM of faster shaft
585 14.2
15.6
17.5
19.3
21.2
23.4
25.6
27.8
29.9
32.0
34.4
36.8
40.0
42.2
45.1
47.9
50.6
700 16.3
17.9
20.0
22.1
24.2
26.7
29.2
31.7
34.0
36.4
39.1
41.7
45.0
47.4
50.5
53.3
56.0
725 16.7
18.3
20.5
22.7
24.8
27.4
30.0
32.5
34.9
37.2
40.0
42.6
46.0
48.4
51.4
54.3
56.9
870 18.9
20.8
23.3
25.7
28.1
31.0
33.8
36.5
39.1
41.6
44.5
47.2
50.6
52.9
55.7
58.2
60.3
950 20.0
22.0
24.6
27.2
29.7
32.7
35.6
38.4
41.1
43.6
46.4
49.1
52.3
54.5
57.0
59.0
60.7
1160 22.3
24.5
27.5
30.3
32.9
36.1
39.1
41.9
44.5
46.8
49.3
51.4
53.7
55.0
1450 24.2
26.6
29.7
32.5
35.1
38.1
40.7
42.9
44.7
46.1
1750 24.4
26.8
29.5
32.0
34.1
36.2
37.6
2850
3450
50 1.8
100 3.3
150 4.7
200 6.0
2.0
3.6
5.1
6.5
2.2
4.0
5.7
7.3
2.4
4.4
6.2
8.0
2.6
4.8
6.8
8.7
2.8
5.2
3.1
5.7
3.3
6.2
3.6
6.7
3.8
7.1
4.1
7.7
4.4
8.2
4.8
5.1
5.5
5.9
6.3
9.0
9.5
10.3
11.0
11.7
7.5
8.2
8.8
9.5
10.2
11.0
11.8
12.9
13.7
14.7
15.8
16.8
9.6
10.5
11.4
12.3
13.1
14.2
15.2
16.6
17.6
19.0
20.3
21.6
250 7.2
300 8.4
350 9.5
10.4
11.6
12.8
14.0
15.5
16.9
18.4
19.8
21.2
22.9
24.6
26.8
28.4
30.5
32.6
34.7
400 10.6
11.6
13.0
14.3
15.6
17.3
18.9
20.5
22.1
23.7
25.6
27.4
29.9
31.7
34.0
36.3
38.6
450 11.6
12.7
14.2
15.7
17.2
19.0
20.8
22.6
24.3
26.1
28.1
30.2
32.8
34.8
37.3
39.8
42.2
500 12.6
13.9
15.5
17.1
18.7
20.7
22.6
24.6
26.5
28.4
30.6
32.8
35.6
37.7
40.4
43.0
45.6
550 13.6
14.9
16.7
18.4
20.2
22.3
24.4
26.5
28.5
30.5
32.9
35.2
38.2
40.4
43.3
46.0
48.7
600 14.5
15.9
17.8
19.7
21.6
23.9
26.1
28.3
30.5
32.6
35.1
37.5
40.7
43.0
45.9
48.7
51.4
650 15.4
16.9
19.0
21.0
22.9
25.3
27.7
30.0
32.3
34.5
37.1
39.7
42.9
45.3
48.3
51.2
53.9
700 16.3
17.9
20.0
22.1
24.2
26.7
29.2
31.7
34.0
36.4
39.1
41.7
45.0
47.4
50.5
53.3
56.0
750 17.1
18.8
21.0
23.2
25.4
28.1
30.7
33.2
35.7
38.1
40.9
43.5
46.9
49.3
52.4
55.2
57.7
800
850
900
950
17.8
18.6
19.3
20.0
7.9
9.2
10.2
11.3
12.3
13.6
14.9
16.1
17.4
18.6
20.1
21.6
23.5
25.0
26.9
28.7
30.6
19.6
20.5
21.2
22.0
8.8
9.7
10.5
11.6
12.7
13.8
14.9
15.9
17.2
18.5
20.1
21.4
23.0
24.6
26.2
22.0
22.9
23.8
24.6
24.3
25.3
26.3
27.2
26.6
27.7
28.7
29.7
29.4
30.5
31.7
32.7
32.0
33.3
34.5
35.6
34.7
36.0
37.3
38.4
A
37.2
38.6
39.9
41.1
39.7
41.1
42.4
43.6
42.5
44.0
45.3
46.4
45.2
46.7
48.0
49.1
48.6
50.1
51.3
52.3
51.0
52.4
53.6
54.5
54.0
55.3
56.3
57.0
56.7
57.8
58.6
59.0
59.1
60.0
60.6
60.7
1000 20.6
22.7
25.4
28.0
30.6
33.7
36.6
39.4
42.1
44.6
47.4
50.0
53.1
55.1
57.3
59.1
60.3
1050 21.2
23.3
26.1
28.8
31.4
34.5
37.5
40.3
43.0
45.5
48.2
50.7
53.6
55.4
57.3
58.7
1100 21.7
23.9
26.7
29.5
32.1
35.3
38.3
41.1
43.7
46.2
48.8
51.2
53.8
55.4
56.9
1150 22.2
24.4
27.3
30.1
32.8
36.0
39.0
41.8
44.3
46.7
49.2
51.4
53.8
55.1
1200 22.7
24.9
27.9
30.7
33.4
36.6
39.6
42.3
44.8
47.1
49.4
51.4
53.4
54.4
1250 23.1
25.4
28.4
31.2
33.9
37.1
40.0
42.7
45.1
47.3
49.4
51.2
52.8
1300 23.4
25.8
28.8
31.7
34.4
37.5
40.4
43.0
45.3
47.2
49.2
50.7
1350 23.7
26.1
29.1
32.0
34.7
37.8
40.6
43.1
45.2
47.1
48.8
49.9
1400 24.0
26.4
29.4
32.3
35.0
38.0
40.7
43.1
45.1
46.7
48.1
1450 24.2
26.6
29.7
32.5
35.1
38.1
40.7
42.9
44.7
46.1
1500 24.4
26.8
29.8
32.6
35.2
38.1
40.5
42.6
44.1
45.3
1550 24.5
26.9
29.9
32.7
35.2
37.9
40.2
42.1
43.4
1600 24.6
27.0
29.9
32.6
35.1
37.7
39.8
41.4
42.5
1650 24.6
27.0
29.9
32.5
34.8
37.3
39.2
40.6
1700 24.5
26.9
29.8
32.3
34.5
36.8
38.5
1750 24.4
26.8
29.5
32.0
34.1
36.2
37.6
1800 24.3
26.5
29.3
31.6
33.5
35.4
1850 24.1
26.3
28.9
31.1
32.9
34.5
1900 23.8
25.9
28.4
30.5
32.1
33.5
1950 23.4
25.5
27.9
29.8
31.3
2000 23.0
25.0
27.3
29.0
30.3
D
74
For speeds over 30 m/s we recommend that pulleys be dynamically balanced.
Additional kW per belt for belt life
C
25000 Hrs
d x RPM
88652
12000 Hrs
0
6000 Hrs
d x RPM
93899
POWER RATINGS HI-POWER
®
Additional kW per belt for speed ratio Arc of contact correction factor G
RPM of faster shaft
1 1.02
1.04
1.07
1.09
1.13
1.17
1.23
1.33 >1.5
to to to to to to to to to
1.01
1.03
1.06
1.08
1.12
1.16
1.22
1.32
1.5
585 0.00
0.17
0.33
0.50
0.67
0.84
1.00
1.17
1.34
1.50
700 0.00
0.20
0.40
0.60
0.80
1.00
1.20
1.40
1.60
1.80
725 0.00
0.21
0.41
0.62
0.83
1.03
1.24
1.45
1.66
1.86
870 0.00
0.25
0.50
0.75
0.99
1.24
1.49
1.74
1.99
2.23
950 0.00
0.27
0.54
0.81
1.08
1.36
1.63
1.90
2.17
2.44
1160 0.00
0.33
0.66
1.00
1.32
1.66
1.99
2.32
2.65
2.98
1450 0.00
0.41
0.83
1.24
1.65
2.07
2.48
2.89
3.31
3.72
1750 0.00
0.50
1.00
1.50
2.00
2.50
3.00
3.49
4.00
4.49
2850 0.00
0.81
1.63
2.44
3.25
4.07
4.88
5.69
6.51
7.32
3450 0.00
0.99
1.97
2.96
3.94
4.92
5.91
6.89
7.88
8.86
50 0.00
0.01
0.03
0.04
0.06
0.07
0.09
0.10
0.11
0.13
100 0.00
0.03
0.06
0.09
0.11
0.14
0.17
0.20
0.23
0.26
150 0.00
0.04
0.09
0.13
0.17
0.21
0.26
0.30
0.34
0.39
200 0.00
0.06
0.11
0.17
0.23
0.29
0.34
0.40
0.46
0.51
250 0.00
0.07
0.14
0.21
0.29
0.36
0.43
0.50
0.57
0.64
300 0.00
0.09
0.17
0.26
0.34
0.43
0.51
0.60
0.69
0.77
350 0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
400 0.00
0.11
0.23
0.34
0.46
0.57
0.69
0.80
0.91
1.03
450 0.00
0.13
0.26
0.39
0.51
0.64
0.77
0.90
1.03
1.16
500 0.00
0.14
0.29
0.43
0.57
0.71
0.86
1.00
1.14
1.28
550 0.00
0.16
0.31
0.47
0.63
0.79
0.94
1.10
1.26
1.41
600 0.00
0.17
0.34
0.51
0.68
0.86
1.03
1.20
1.37
1.54
650
700
750
800
0.00
0.00
0.00
0.00
0.19
0.20
0.21
0.23
0.37
0.40
0.43
0.46
0.56
0.60
0.64
0.69
B
0.74
0.80
0.86
0.91
0.93
1.00
1.07
1.14
1.11
1.20
1.29
1.37
1.30
1.40
1.50
1.60
1.48
1.60
1.71
1.83
1.67
1.80
1.93
2.05
850 0.00
0.24
0.49
0.73
0.97
1.21
1.46
1.70
1.94
2.18
900 0.00
0.26
0.51
0.77
1.03
1.28
1.54
1.80
2.06
2.31
950 0.00
0.27
0.54
0.81
1.08
1.36
1.63
1.90
2.17
2.44
1000 0.00
0.29
0.57
0.86
1.14
1.43
1.71
2.00
2.28
2.57
1050 0.00
0.30
0.60
0.90
1.20
1.50
1.80
2.10
2.40
2.70
1100 0.00
0.31
0.63
0.94
1.26
1.57
1.88
2.20
2.51
2.82
1150 0.00
0.33
0.66
0.99
1.31
1.64
1.97
2.30
2.63
2.95
1200 0.00
0.34
0.69
1.03
1.37
1.71
2.06
2.40
2.74
3.08
1250 0.00
0.36
0.71
1.07
1.43
1.78
2.14
2.50
2.85
3.21
1300 0.00
0.37
0.74
1.12
1.48
1.86
2.23
2.60
2.97
3.34
1350 0.00
0.39
0.77
1.16
1.54
1.93
2.31
2.69
3.08
3.47
1400 0.00
0.40
0.80
1.20
1.60
2.00
2.40
2.79
3.20
3.60
1450 0.00
0.41
0.83
1.24
1.65
2.07
2.48
2.89
3.31
3.72
1500 0.00
0.43
0.86
1.29
1.71
2.14
2.57
2.99
3.43
3.85
1550 0.00
0.44
0.89
1.33
1.77
2.21
2.66
3.09
3.54
3.98
1600 0.00
0.46
0.91
1.37
1.83
2.28
2.74
3.19
3.65
4.11
1650 0.00
0.47
0.94
1.42
1.88
2.36
2.83
3.29
3.77
4.24
1700 0.00
0.49
0.97
1.46
1.94
2.43
2.91
3.39
3.88
4.37
1750 0.00
0.50
1.00
1.50
2.00
2.50
3.00
3.49
4.00
4.49
1800 0.00
0.51
1.03
1.54
2.05
2.57
3.08
3.59
4.11
4.62
1850 0.00
0.53
1.06
1.59
2.11
2.64
3.17
3.69
4.23
4.75
1900 0.00
0.54
1.09
1.63
2.17
2.71
3.26
3.79
4.34
4.88
1950 0.00
0.56
1.11
1.67
2.23
2.78
3.34
3.89
4.45
5.01
2000 0.00
0.57
1.14
1.72
2.28
2.85
3.43
3.99
4.57
5.14
D - d
A
Arc of contact on small pulley
(degrees)
0.00
0.10
180
174
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.00
1.10
1.20
1.30
1.40
1.50
169
163
157
151
145
139
G
113
106
99
91
83
0.91
0.89
0.87
0.85
0.82
0.80
0.77
0.73
0.70
0.65
1.00
0.99
0.97
0.96
0.94
0.93
Factor G
Belt length correction factor C
L
Belt ref.
ISO Corr.
datum factor length C
L mm
D-98
D-104
D-110
D-120
D-124
2570 0.83
2720 0.84
2875 0.85
3130 0.87
3230 0.88
D-298
D-300
D-330
D-360
D-128 3330 0.88
D-250
D-270
D-282
D-187
D-195
D-197
D-204
D-210
D-223
D-240
D-137
D-140
D-144
D-158
D-162
D-170
D-173
D-177
D-180
3560 0.90
3635 0.90
3740 0.91
4095 0.92
4195 0.93
4400 0.94
4475
4575
4650
C
0.94
0.95
0.95
4830 0.96
5035 0.97
5085 0.97
5260 0.97
5415 0.98
5680 0.99
6115 1.01
L
6365 1.01
6875 1.03
7180 1.04
7585 1.05
7635 1.05
8400 1.07
9160 1.09
HP
6
Number of belts required =
Design kW
(A + B + C) x G x C
L
75
76
POWER RATINGS MICRO-V
®
Basic Watt per rib
MV
6
20 24 26 28 30 32 34 36 38 40 42 45 48
RPM of faster shaft
5400
5600
5800
6000
6200
6400
6600
6800
7000
7500
8000
8500
9000
10000
4000
4200
4400
4600
4800
5000
5200
2400
2600
2800
3000
3200
3400
3600
3800
1300
1400
1500
1600
1700
1800
1900
2000
2200
600
700
800
900
1000
1100
1200
1750
2850
3450
100
200
300
400
500
585
700
725
870
950
1160
1450
18
19
19
19
16
17
17
18
18
11
12
13
14
14
15
16
18
20
19
7
8
3
5
10
11
12
12
13
14
15
17
20
20
20
20
20
19
19
19
18
18
17
25
29
29
34
36
42
49
29
34
35
40
43
51
60
34
39
41
47
51
59
71
39
45
46
54
58
68
81
43
50
52
60
65
76
48
56
57
67
72
85
52
61
63
73
79
57
66
68
80
86
61
72
74
86
68
79
82
75
87
90
79 86 92 107
92 100 108 126
95 103 111 130
96 105 112 121 130 152
93 103 114 120 131 141 164
93 102 110 122 135 143 155 167 195
91 102 112 122 133 148 163 173 188 202 237
57
79
69
99
82
118
94
137
106
156
119
175
131
194
143
212
155
231
173
259
191
286
203
304
220
331
238
357
278
419
90 113 136 158 181 203 225 247 269 301 334 355 386 417 489
44
60
67
12
15
5
9
18
20
23
24
27
29
33
39
45
46
48
51
36
38
40
41
43
20
23
25
28
30
32
34
7
12
17
22
8
14
20
25
9
16
22
28
9
17
25
31
10
19
27
35
11
21
30
38
12
22
32
41
13
24
34
44
14
27
38
49
16
29
42
54
6
10
15
18
22
25
29
32
35
37
40
43
46
48
51
53
55
58
60
62
67
71
75
78
26
30
34
38
42
45
49
52
55
58
62
65
68
71
74
76
82
59
70
79
89
65
76
87
35
39
44
48
53
57
61
65
69
72
76
80
84
34
40
45
50
55
60
65
70
74
79
83
88
38
44
50
56
62
68
73
78
84
89
42
49
56
62
69
75
81
87
30
A
46
53
61
68
75
82
89
50
58
66
74
82
90
54
63
72
80
89
97 108 119 126 136 147 172
97 105 117 129 137 148 160 186
96 104 113 126 139 147 160 172 201
93 102 112 121 135 148 157 171 184 215
99 109 119 129 143 158 168 182 196 230
94 105 115 126 136 152 168 178 193 208 244
99 110 122 133 144 160 177 188 204 220 258
92 104 116 128 140 151 169 186 198 215 232 271
96 109 121 134 146 159 177 195 207 225 243 285
87 100 114 127 140 153 166 185 204 217 236 255 298
91 105 118 132 146 160 173 193 213 227 246 266 311
97 113 128 143 158 172 187 209 231 245 267 288 337
87 104 120 137 153 169 185 201 225 248 264 287 310 363
93 110 128 146 163 180 197 214 240 265 282 307 331 388
98 117 135 154 173 191 210 228 255 282 299 326 352 413
82 102 123 143 163 182 202 221 241 269 298 317 345 373 437
86 107 129 150 171 192 212 233 253 284 314 334 363 393 460
89 112 134 157 179 201 223 244 266 298 330 351 382 413 483
92 116 140 163 187 210 233 256 278 312 345 367 400 432 506
95 121 145 170 194 219 243 267 290 325 360 383 417 451 528
69
81
75
88
80 94
94 110
92 100 108 126
98 104 113 121 141
99 108 115 125 134 157
17
31
44
57
18
33
48
61
19
36
51
66
22
41
60
77
54
57
59
62
64
66
68
70
72 98 125 151 176 202 227 252 277 302 339 375 399 435 470 550
74 101 129 156 183 209 236 262 288 314 352 390 414 451 488 571
75 104 133 161 189 217 244 271 298 325 365 404 430 468 506 592
77 107 137 166 195 224 252 280 308 336 377 418 445 484 524 613
79 110 140 171 201 231 260 289 318 347 390 432 459 500 541 633
80 112 144 175 207 238 268 298 328 358 402 445 474 516 558 652
81 115 148 180 212 244 276 307 338 369 414 458 488 531 574 671
83 117 151 185 218 251 283 315 347 379 426 471 502 546 590 690
84 119 154 189 223 257 291 324 357 389 437 484 515 561 606 708
85 121 158 193 229 263 298 332 366 399 448 497 529 575 622 726
86 124 161 197 234 270 305 340 375 409 459 509 541 590 637 743
87 126 164 201 239 276 312 348 383 418 470 521 554 603 651 759
88 128 167 205 244 281 319 355 392 428 481 533 567 617 666 776
89 129 170 209 248 287 325 363 400 437 491 544 579 630 680 791
89 131 172 213 253 293 332 370 408 446 501 555 590 642 693 806
90 133 175 217 258 298 338 377 416 455 511 566 602 655 706 821
91 137 181 225 269 311 353 395 435 476 535 592 629 684 737 855
92 140 187 233 279 324 368 411 453 495 557 616 655 711 766 886
93 143 192 241 288 335 381 426 470 514 577 639 678 736 792 913
93 145 197 247 297 346 393 440 486 531 596 659 700 759 815 937
92 149 204 259 312 364 415 465 514 561 629 695 736 797 853 972
For speeds over 30 m/s we recommend that pulleys be dynamically balanced.
50 53 56 63
PJ
POWER RATINGS MICRO-V
®
Additional Watt per rib for speed ratio Arc of contact correction factor G
RPM of faster shaft
5400
5600
5800
6000
6200
6400
6600
6800
7000
7500
8000
8500
9000
10000
3800
4000
4200
4400
4600
4800
5000
5200
2400
2600
2800
3000
3200
3400
3600
1300
1400
1500
1600
1700
1800
1900
2000
2200
500
600
700
800
900
1000
1100
1200
85
700
725
870
950
1160
1450
1750
2850
3450
100
200
300
400
1 to
1.03
to
1.07
to
1.11
to
1.17
to
1.24
to
1.34
to
1.48
to
1.72 >2.31
to
1.02
1.06
1.10
1.16
1.23
1.33
1.47
1.71
2.31
8
8
7
8
8
7
7
6
7
6
6
6
5
5
5
5
5
9
10
10
11
12
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
15
15
16
16
17
13
13
14
14
9
9
10
10
11
11
12
12
18
19
20
21
24
22
23
23
24
25
19
20
21
21
14
14
15
16
16
17
18
18
27
28
30
32
36
2
3
2
2
1
2
7
8
3
4
3
4
3
3
2
2
5
6
10
12
1
1
1
1
1
1
3
4
2
2
0
4
0
9
0
13
0 0 1
0
1
1
1
1
1
1
1
1
2
2
2
2
2
2
2
2
3
3
3
3
4
4
4
1
1
1
1
2
2
2
2
3
3
3
3
4
4
4
4
5
5
5
6
6
7
7
8
8
1
1
2
2
2
3
3
4
4
4
5
5
5
6
6
6
7
7
8
9
9
10
11
11
12
0
B
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
9
10
11
12
13
14
15
16
2
2
3
4
4
5
5
6
7
7
8
8
9
9
10
11
11
12
13
14
15
17
18
19
20
2
3
4
4
5
6
6
7
8
9
9
10
11
11
12
13
14
14
16
17
18
20
21
23
24
2
3
4
5
6
7
7
8
9
10
11
12
12
13
14
15
16
17
18
20
22
23
25
27
28
1 1 1 2
0
17
1
21
1
26
1
30
5
5
3
4
3
3
7
8
14
16
6
7
4
5
3
4
9
10
17
20
7
8
5
6
4
5
10
12
20
25
5
6
6
7
8
10
12
15
24
29
29
30
31
32
33
26
27
27
28
18
19
20
21
22
23
24
25
36
38
40
43
47
37
38
39
40
41
32
33
34
36
23
24
25
26
27
28
30
31
44
47
50
53
59
44
46
47
48
50
38
40
41
43
27
28
30
31
33
34
36
37
53
57
60
64
71
51
53
55
56
58
45
46
48
50
32
33
35
36
38
40
41
43
62
66
71
75
83
71
76
81
85
95
59
61
63
64
66
51
53
55
57
36
38
40
42
44
45
47
49
23
25
27
28
30
32
34
16
17
18
19
21
12
13
14
15
9
9
10
11
7
8
5
6
3
4
1
2
14
17
27
33
6
7
7
8
9
11
80
85
91
96
107
66
68
70
73
75
58
60
62
64
41
43
45
47
49
51
53
55
26
28
30
32
34
36
38
18
19
20
21
23
14
15
16
17
10
11
12
13
7
9
5
6
3
4
1
2
15
19
30
37
6
7
8
9
10
12
D - d
A
Arc of contact on small pulley
(degrees)
0.00
0.10
180
174
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.00
1.10
1.20
1.30
1.40
1.50
169
163
157
151
145
139
G
113
106
99
91
83
0.91
0.89
0.87
0.85
0.82
0.80
0.77
0.73
0.70
0.65
1.00
0.99
0.97
0.96
0.94
0.93
Factor G
Belt length correction factor C
L
Belt ref.
Corr.
factor
C
L
PJ 1473
PJ 1549
PJ 1651
PJ 1854
PJ 2210
PJ 2337
PJ 2489
0.76
0.78
0.79
0.82
0.83
PJ 457
PJ 483
PJ 508
PJ 559
PJ 584
PJ 610 0.85
PJ 1168
PJ 1219
PJ 1244
PJ 1270
PJ 1321
PJ 1397
PJ 660
PJ 711
PJ 762
PJ 813
PJ 838
PJ 864
PJ 914
PJ 965
PJ 1016
PJ 1041
PJ 1067
PJ 1092
PJ 1118
C
0.87
0.89
0.91
0.93
0.94
0.95
0.97
0.98
1.00
1.00
1.01
1.02
1.03
L
1.04
1.05
1.06
1.07
1.08
1.10
1.11
1.13
1.15
1.18
1.23
1.25
1.27
MV
6
Number of ribs required =
Design kW x 1000
(A + B) x G x C
L
77
78
POWER RATINGS MICRO-V
®
Basic kW per rib
MV
6
75 80 90 100 112 125 140 160 180 200 224 250 280 315 355 400 450
RPM of faster shaft
585 0.35
0.40
0.50
0.60
0.71
0.84
0.98
1.17
1.36
1.54
1.76
1.99
2.25
2.55
2.89
3.26
3.66
700 0.40
0.46
0.57
0.69
0.83
0.98
1.14
1.36
1.58
1.80
2.05
2.32
2.62
2.97
3.36
3.79
4.25
725 0.41
0.47
0.59
0.71
0.85
1.01
1.18
1.41
1.63
1.85
2.11
2.39
2.70
3.06
3.46
3.90
4.37
870 0.47
0.54
0.68
0.83
0.99
1.17
1.37
1.64
1.90
2.16
2.47
2.79
3.15
3.57
4.03
4.53
5.06
950 0.50
0.58
0.73
0.89
1.07
1.26
1.48
1.77
2.05
2.33
2.65
3.00
3.39
3.84
4.33
4.86
5.42
1160 0.58
0.68
0.86
1.04
1.26
1.49
1.75
2.09
2.42
2.75
3.13
3.54
3.99
4.50
5.06
5.65
6.27
1450 0.68
0.80
1.02
1.24
1.50
1.78
2.10
2.50
2.90
3.29
3.75
4.22
4.75
5.33
5.95
6.60
7.23
1750 0.78
0.92
1.18
1.44
1.74
2.07
2.43
2.91
3.37
3.81
4.33
4.86
5.44
6.07
6.72
7.35
2850 1.07
1.27
1.67
2.05
2.50
2.97
3.49
4.15
4.76
5.33
5.94
6.52
3450 1.20
1.43
1.88
2.33
2.84
3.36
3.94
4.65
5.29
5.85
100 0.08
0.09
0.11
0.13
0.16
0.18
0.21
0.25
0.29
0.32
0.37
0.42
0.47
0.53
0.61
0.69
0.77
200 0.15
0.16
0.20
0.24
0.29
0.33
0.39
0.46
0.53
0.60
0.68
0.77
0.88
0.99
1.13
1.27
1.44
300 0.20
0.23
0.29
0.34
0.40
0.47
0.55
0.66
0.76
0.86
0.98
1.11
1.26
1.42
1.61
1.82
2.06
400 0.26
0.29
0.36
0.43
0.52
0.61
0.71
0.84
0.98
1.11
1.26
1.43
1.62
1.83
2.08
2.35
2.64
500 0.31
0.35
0.44
0.52
0.62
0.73
0.86
1.02
1.18
1.34
1.53
1.73
1.96
2.23
2.52
2.85
3.20
600 0.35
0.40
0.51
0.61
0.73
0.86
1.00
1.20
1.39
1.57
1.79
2.03
2.30
2.61
2.95
3.33
3.74
700 0.40
0.46
0.57
0.69
0.83
0.98
1.14
1.36
1.58
1.80
2.05
2.32
2.62
2.97
3.36
3.79
4.25
800 0.44
0.51
0.64
0.77
0.93
1.09
1.28
1.53
1.77
2.01
2.30
2.60
2.94
3.33
3.76
4.23
4.74
900 0.48
0.56
0.70
0.85
1.02
1.20
1.41
1.69
1.96
2.22
2.54
2.87
3.24
3.67
4.14
4.65
5.20
1000 0.52
0.60
0.76
0.92
1.11
1.31
1.54
1.85
2.14
2.43
2.77
3.13
3.54
4.00
4.51
5.05
5.63
1100 0.56
0.65
0.82
1.00
1.20
1.42
1.67
2.00
2.32
2.63
3.00
3.39
3.82
4.32
4.86
5.44
6.04
1200 0.60
0.69
0.88
1.07
1.29
1.53
1.80
2.15
2.49
2.83
3.22
3.64
4.10
4.62
5.19
5.80
6.42
1300 0.63
0.74
0.94
1.14
1.38
1.63
1.92
2.29
2.66
3.02
3.44
3.88
4.37
4.91
5.51
6.13
6.77
1400 0.67
0.78
0.99
1.21
1.46
1.73
2.04
2.43
2.82
3.20
3.64
4.11
4.62
5.20
5.81
6.45
7.09
1500 0.70
0.82
1.05
1.28
1.54
1.83
2.15
2.57
2.98
3.38
3.85
4.33
4.87
5.46
6.09
6.74
7.37
1600
1700
1800
1900
0.73
0.77
0.80
0.83
0.86
0.90
0.93
0.97
1.10
1.15
1.20
1.25
1.34
1.41
1.47
1.53
1.62
1.70
1.78
1.86
1.93
2.02
2.11
2.20
2.27
2.38
2.49
2.59
2.71
2.84
2.97
3.10
A
3.14
3.29
3.44
3.59
3.56
3.73
3.90
4.06
4.05
4.24
4.42
4.60
4.55
4.76
4.96
5.15
5.11
5.33
5.55
5.75
5.72
5.95
6.18
6.39
6.36
6.60
6.83
7.03
7.00
7.24
7.46
7.64
7.62
2000 0.86
1.01
1.30
1.59
1.93
2.29
2.70
3.22
3.73
4.22
4.77
5.34
5.94
6.58
7.22
2100 0.88
1.04
1.35
1.65
2.00
2.38
2.80
3.34
3.87
4.37
4.94
5.51
6.13
6.76
7.38
2200 0.91
1.07
1.39
1.71
2.08
2.46
2.90
3.46
4.00
4.51
5.09
5.68
6.29
6.92
2300 0.94
1.11
1.44
1.76
2.14
2.55
3.00
3.58
4.13
4.65
5.24
5.84
6.45
7.07
2400 0.97
1.14
1.48
1.82
2.21
2.63
3.09
3.69
4.25
4.79
5.39
5.98
6.59
7.19
2500 0.99
1.17
1.53
1.87
2.28
2.71
3.19
3.80
4.37
4.92
5.53
6.12
6.72
2600 1.02
1.20
1.57
1.93
2.34
2.78
3.28
3.90
4.49
5.04
5.65
6.25
6.84
2700 1.04
1.23
1.61
1.98
2.41
2.86
3.36
4.00
4.60
5.16
5.78
6.37
6.94
2800 1.06
1.26
1.65
2.03
2.47
2.93
3.45
4.10
4.71
5.27
5.89
6.47
2900 1.08
1.29
1.69
2.08
2.53
3.01
3.53
4.19
4.81
5.38
5.99
6.57
3000 1.11
1.32
1.73
2.13
2.59
3.08
3.61
4.29
4.91
5.48
6.09
6.65
3100 1.13
1.34
1.76
2.17
2.65
3.14
3.69
4.37
5.00
5.57
6.18
3200 1.15
1.37
1.80
2.22
2.70
3.21
3.76
4.46
5.09
5.66
6.26
3300 1.17
1.39
1.83
2.26
2.76
3.27
3.84
4.54
5.17
5.74
6.33
3400 1.19
1.42
1.87
2.30
2.81
3.33
3.91
4.61
5.25
5.82
6.39
3500 1.20
1.44
1.90
2.35
2.86
3.39
3.97
4.69
5.33
5.89
3600 1.22
1.46
1.93
2.39
2.91
3.45
4.04
4.75
5.39
5.95
3700 1.24
1.49
1.96
2.43
2.96
3.51
4.10
4.82
5.46
6.00
3800 1.26
1.51
1.99
2.46
3.01
3.56
4.16
4.88
5.51
6.05
3900 1.27
1.53
2.02
2.50
3.05
3.61
4.21
4.94
5.56
4000 1.29
1.55
2.05
2.54
3.09
3.66
4.27
4.99
5.61
4200 1.31
1.58
2.10
2.60
3.17
3.75
4.36
5.08
5.68
4400 1.34
1.62
2.15
2.67
3.25
3.83
4.45
5.16
4600 1.36
1.65
2.20
2.72
3.32
3.91
4.52
5.22
4800 1.38
1.67
2.24
2.78
3.38
3.97
4.58
5000 1.40
1.70
2.28
2.82
3.43
4.02
4.63
5200 1.41
1.72
2.31
2.86
3.47
4.07
4.66
5400 1.42
1.74
2.34
2.90
3.51
4.10
4.68
5600 1.43
1.75
2.36
2.92
3.54
4.12
5800 1.44
1.76
2.38
2.95
3.56
4.14
6000 1.44
1.77
2.39
2.96
3.57
4.14
For speeds over 30 m/s we recommend that pulleys be dynamically balanced.
PL
POWER RATINGS MICRO-V
®
Additional kW per rib for speed ratio Arc of contact correction factor G
RPM of faster shaft
1 to
1.03
to
1.07
to
1.11
to
1.17
to
1.24
to
1.34
to
1.48
to
1.72 >2.31
to
1.02
1.06
1.10
1.16
1.23
1.33
1.47
1.71
2.31
585 0.00
0.01
0.02
0.02
0.03
0.04
0.05
0.06
0.07
0.07
700 0.00
0.01
0.02
0.03
0.04
0.05
0.06
0.07
0.08
0.09
725 0.00
0.01
0.02
0.03
0.04
0.05
0.06
0.07
0.08
0.09
870 0.00
0.01
0.02
0.04
0.05
0.06
0.07
0.09
0.10
0.11
950 0.00
0.01
0.03
0.04
0.05
0.07
0.08
0.09
0.11
0.12
1160 0.00
0.02
0.03
0.05
0.07
0.08
0.10
0.11
0.13
0.15
1450 0.00
0.02
0.04
0.06
0.08
0.10
0.12
0.14
0.16
0.18
1750 0.00
0.02
0.05
0.07
0.10
0.12
0.15
0.17
0.20
0.22
2850 0.00
0.04
0.08
0.12
0.16
0.20
0.24
0.28
0.32
0.36
3450 0.00
0.05
0.10
0.15
0.19
0.24
0.29
0.34
0.39
0.44
100 0.00
0.00
0.00
0.00
0.01
0.01
0.01
0.01
0.01
0.01
200 0.00
0.00
0.01
0.01
0.01
0.01
0.02
0.02
0.02
0.03
300 0.00
0.00
0.01
0.01
0.02
0.02
0.03
0.03
0.03
0.04
400 0.00
0.01
0.01
0.02
0.02
0.03
0.03
0.04
0.05
0.05
500 0.00
0.01
0.01
0.02
0.03
0.04
0.04
0.05
0.06
0.06
600 0.00
0.01
0.02
0.03
0.03
0.04
0.05
0.06
0.07
0.08
700 0.00
0.01
0.02
0.03
0.04
0.05
0.06
0.07
0.08
0.09
800 0.00
0.01
0.02
0.03
0.05
0.06
0.07
0.08
0.09
0.10
900 0.00
0.01
0.03
0.04
0.05
0.06
0.08
0.09
0.10
0.11
1000 0.00
0.01
0.03
0.04
0.06
0.07
0.08
0.10
0.11
0.13
1100 0.00
0.02
0.03
0.05
0.06
0.08
0.09
0.11
0.12
0.14
1200 0.00
0.02
0.03
0.05
0.07
0.08
0.10
0.12
0.14
0.15
1300
1400
1500
1600
0.00
0.00
0.00
0.00
0.02
0.02
0.02
0.02
0.04
0.04
0.04
0.05
0.05
0.06
0.06
0.07
B
0.07
0.08
0.08
0.09
0.09
0.10
0.11
0.11
0.11
0.12
0.13
0.14
0.13
0.14
0.15
0.16
0.15
0.16
0.17
0.18
0.16
0.18
0.19
0.20
1700 0.00
0.02
0.05
0.07
0.10
0.12
0.14
0.17
0.19
0.22
1800 0.00
0.03
0.05
0.08
0.10
0.13
0.15
0.18
0.20
0.23
1900 0.00
0.03
0.05
0.08
0.11
0.13
0.16
0.19
0.21
0.24
2000 0.00
0.03
0.06
0.08
0.11
0.14
0.17
0.20
0.23
0.25
2100 0.00
0.03
0.06
0.09
0.12
0.15
0.18
0.21
0.24
0.27
2200 0.00
0.03
0.06
0.09
0.12
0.15
0.19
0.22
0.25
0.28
2300 0.00
0.03
0.06
0.10
0.13
0.16
0.19
0.23
0.26
0.29
2400 0.00
0.03
0.07
0.10
0.14
0.17
0.20
0.24
0.27
0.30
2500 0.00
0.04
0.07
0.11
0.14
0.18
0.21
0.25
0.28
0.32
2600 0.00
0.04
0.07
0.11
0.15
0.18
0.22
0.26
0.29
0.33
2700 0.00
0.04
0.08
0.11
0.15
0.19
0.23
0.27
0.30
0.34
2800 0.00
0.04
0.08
0.12
0.16
0.20
0.24
0.28
0.32
0.35
2900 0.00
0.04
0.08
0.12
0.16
0.20
0.24
0.29
0.33
0.37
3000 0.00
0.04
0.08
0.13
0.17
0.21
0.25
0.30
0.34
0.38
3100 0.00
0.04
0.09
0.13
0.17
0.22
0.26
0.31
0.35
0.39
3200 0.00
0.05
0.09
0.14
0.18
0.23
0.27
0.32
0.36
0.41
3300 0.00
0.05
0.09
0.14
0.19
0.23
0.28
0.32
0.37
0.42
3400 0.00
0.05
0.10
0.14
0.19
0.24
0.29
0.33
0.38
0.43
3500 0.00
0.05
0.10
0.15
0.20
0.25
0.30
0.34
0.39
0.44
3600 0.00
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.41
0.46
3700 0.00
0.05
0.10
0.16
0.21
0.26
0.31
0.36
0.42
0.47
3800 0.00
0.05
0.11
0.16
0.21
0.27
0.32
0.37
0.43
0.48
3900 0.00
0.06
0.11
0.16
0.22
0.27
0.33
0.38
0.44
0.49
4000 0.00
0.06
0.11
0.17
0.23
0.28
0.34
0.39
0.45
0.51
4200 0.00
0.06
0.12
0.18
0.24
0.30
0.35
0.41
0.47
0.53
4400 0.00
0.06
0.12
0.19
0.25
0.31
0.37
0.43
0.50
0.56
4600 0.00
0.06
0.13
0.19
0.26
0.32
0.39
0.45
0.52
0.58
4800 0.00
0.07
0.14
0.20
0.27
0.34
0.41
0.47
0.54
0.61
5000 0.00
0.07
0.14
0.21
0.28
0.35
0.42
0.49
0.56
0.63
5200 0.00
0.07
0.15
0.22
0.29
0.37
0.44
0.51
0.59
0.66
5400 0.00
0.08
0.15
0.23
0.30
0.38
0.46
0.53
0.61
0.68
5600 0.00
0.08
0.16
0.24
0.32
0.39
0.47
0.55
0.63
0.71
5800 0.00
0.08
0.16
0.24
0.33
0.41
0.49
0.57
0.65
0.73
6000 0.00
0.08
0.17
0.25
0.34
0.42
0.51
0.59
0.68
0.76
D - d
A
Arc of contact on small pulley
(degrees)
0.00
0.10
180
174
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.00
1.10
1.20
1.30
1.40
1.50
169
163
157
151
145
139
G
113
106
99
91
83
0.91
0.89
0.87
0.85
0.82
0.80
0.77
0.73
0.70
0.65
1.00
0.99
0.97
0.96
0.94
0.93
Factor G
Belt length correction factor C
L
Belt ref.
Corr.
factor
C
L
PL 1270
PL 1371
PL 1422
PL 1562
PL 1613
0.87
0.89
0.90
0.92
0.93
PL 3696
PL 1664 0.94
PL 2845
PL 2921
PL 3086
PL 3125
PL 3289
PL 3327
PL 1715
PL 1764
PL 1841
PL 1943
PL 1981
PL 2020
PL 2070
PL 2134
PL 2197
PL 2324
PL 2476
PL 2515
PL 2705
C
0.95
0.95
0.96
0.98
0.98
0.99
0.99
1.00
1.01
1.02
1.04
1.04
1.06
L
1.07
1.08
1.09
1.09
1.11
1.11
1.13
MV
6
Number of ribs required =
Design kW
(A + B) x G x C
L
79
80
POWER RATINGS MICRO-V
®
MV
6
Basic kW per rib
180 190 200 212 224 236 250 280 315 355 400 450 500 560 630 710 800
RPM of faster shaft
585 2.96
3.26
3.56
3.92
4.27
4.62
5.02
5.88
6.86
7.95
9.15 10.44 11.70 13.16
14.78 16.54 18.39
700 3.40
3.75
4.10
4.51
4.92
5.33
5.80
6.79
7.92
9.18 10.55 12.02 13.44 15.06
16.85 18.73 20.65
725 3.49
3.85
4.21
4.64
5.06
5.48
5.96
6.98
8.14
9.44 10.84 12.35 13.80 15.45
17.26 19.16
21.08
870 4.00
4.42
4.84
5.34
5.83
6.31
6.87
8.05
9.38 10.86 12.45 14.13 15.72 17.50
19.39
21.29 23.06
950 4.27
4.72
5.17
5.70
6.23
6.75
7.35
8.61 10.03 11.59 13.27 15.02 16.67 18.48
20.37 22.19 23.77
1160 4.92
5.45
5.97
6.60
7.21
7.82
8.51
9.96 11.58 13.33 15.17 17.05
18.74 20.51
22.16
1450 5.70
6.33
6.95
7.68
8.40
9.10
9.91 11.56 13.37 15.27
17.19 19.02 20.50
1750 6.39
7.10
7.81
8.63
9.43 10.21 11.09 12.87 14.76
16.66 18.42
2850 7.71
8.58
9.40
10.32 11.17 11.95 12.76
3450 7.53
8.35
9.10
9.89
100 0.70
0.76
0.82
0.90
0.97
1.05
1.13
1.31
1.52
1.76
2.02
2.31
2.59
2.93
3.31
3.75
4.24
200 1.25
1.37
1.48
1.62
1.76
1.89
2.05
2.39
2.78
3.21
3.70
4.23
4.75
5.37
6.08
6.88
7.76
300 1.74
1.91
2.08
2.27
2.47
2.67
2.89
3.38
3.93
4.55
5.24
6.00
6.74
7.61
8.61
9.72 10.95
400 2.20
2.41
2.63
2.88
3.14
3.39
3.68
4.30
5.01
5.81
6.69
7.65
8.59
9.69
10.94 12.33 13.84
500 2.62
2.88
3.14
3.45
3.76
4.07
4.42
5.17
6.03
6.99
8.05
9.20 10.32 11.62
13.10 14.71 16.43
600 3.02
3.33
3.63
4.00
4.36
4.71
5.13
6.00
7.00
8.11
9.34 10.66 11.94 13.42
15.07 16.85 18.71
700 3.40
3.75
4.10
4.51
4.92
5.33
5.80
6.79
7.92
9.18 10.55 12.02 13.44 15.06
16.85 18.73 20.65
800 3.76
4.15
4.54
5.00
5.46
5.92
6.44
7.54
8.80 10.19 11.69 13.30 14.82 16.55
18.42 20.34
22.21
900 4.10
4.53
4.96
5.47
5.98
6.48
7.05
8.26
9.63 11.14 12.76 14.47 16.09 17.88
19.78
21.65 23.36
1000 4.43
4.90
5.37
5.92
6.47
7.01
7.64
8.94 10.41 12.03 13.75 15.55 17.22 19.04
20.90 22.64
1100 4.74
5.25
5.75
6.35
6.94
7.52
8.19
9.59 11.15 12.86 14.66 16.52 18.22
20.01
21.77
1200 5.03
5.58
6.12
6.76
7.39
8.01
8.72 10.20 11.85 13.63 15.49 17.38
19.07 20.79
22.37
1300 5.31
5.89
6.47
7.14
7.81
8.46
9.21 10.77 12.49 14.34 16.24
18.13 19.76 21.36
1400 5.58
6.19
6.80
7.51
8.21
8.90
9.68 11.31 13.09 14.98 16.89
18.75 20.30
1500 5.83
6.47
7.11
7.85
8.59
9.31 10.12 11.80 13.64 15.55
17.46 19.25 20.66
1600
1700
1800
1900
6.06
6.28
6.49
6.68
6.74
6.99
7.22
7.43
7.40
7.68
7.93
8.17
8.18
8.48
8.77
9.03
8.94
9.86 10.67 11.57 13.39
A
17.92 19.61
16.47 18.28
16.82 18.53
15.27 17.09 18.68
2000 6.86
7.63
8.39
9.27 10.12 10.94 11.85 13.68
15.53 17.27
2100 7.02
7.81
8.58
9.48 10.35 11.18 12.10
13.92 15.73 17.37
2200 7.16
7.98
8.76
9.67 10.55 11.39 12.31
14.11 15.87
2300 7.29
8.12
8.92
9.84 10.73 11.56
12.49 14.26 15.93
2400 7.41
8.25
9.06
9.99 10.87 11.71
12.63 14.35 15.93
2500 7.50
8.35
9.17 10.11 10.99
11.83 12.73 14.40
2600 7.58
8.44
9.26 10.20
11.08 11.91 12.79 14.39
2700 7.64
8.51
9.34 10.27
11.14 11.95 12.81 14.32
2800 7.69
8.56
9.38
10.31 11.17 11.96 12.79
2900 7.72
8.59
9.41 10.33 11.17 11.93 12.72
3000 7.73
8.59
9.41 10.31 11.13 11.87 12.61
3100 7.72
8.58
9.38 10.27 11.07 11.77
3200 7.69
8.54
9.33 10.20 10.96 11.62
3300 7.64
8.48
9.26 10.10 10.83
3400 7.57
8.40
9.16
9.96 10.65
3500 7.48
8.30
9.03
9.80
3600 7.38
8.17
8.88
9.60
3700 7.25
8.02
8.69
3800 7.10
7.84
8.48
3900 6.92
7.64
4000 6.73
7.41
PM
For speeds over 30 m/s we recommend that pulleys be dynamically balanced.
POWER RATINGS MICRO-V
®
Additional kW per rib for speed ratio Arc of contact correction factor G
RPM of faster shaft
1 to
1.03
to
1.07
to
1.11
to
1.17
to
1.24
to
1.34
to
1.48
to
1.72 >2.31
to
1.02
1.06
1.10
1.16
1.23
1.33
1.47
1.71
2.31
585 0.00
0.05
0.11
0.16
0.21
0.26
0.32
0.37
0.42
0.47
700 0.00
0.06
0.13
0.19
0.25
0.31
0.38
0.44
0.50
0.57
725 0.00
0.07
0.13
0.20
0.26
0.33
0.39
0.46
0.52
0.59
870 0.00
0.08
0.16
0.23
0.31
0.39
0.47
0.55
0.63
0.70
950 0.00
0.09
0.17
0.26
0.34
0.43
0.51
0.60
0.68
0.77
1160 0.00
0.10
0.21
0.31
0.42
0.52
0.63
0.73
0.83
0.94
1450 0.00
0.13
0.26
0.39
0.52
0.65
0.78
0.91
1.04
1.17
1750 0.00
0.16
0.31
0.47
0.63
0.79
0.94
1.10
1.26
1.42
2850 0.00
0.26
0.51
0.77
1.03
1.28
1.54
1.80
2.05
2.31
3450 0.00
0.31
0.62
0.93
1.24
1.55
1.86
2.17
2.48
2.79
100 0.00
0.01
0.02
0.03
0.04
0.04
0.05
0.06
0.07
0.08
200 0.00
0.02
0.04
0.05
0.07
0.09
0.11
0.13
0.14
0.16
300 0.00
0.03
0.05
0.08
0.11
0.13
0.16
0.19
0.22
0.24
400 0.00
0.04
0.07
0.11
0.14
0.18
0.22
0.25
0.29
0.32
500 0.00
0.05
0.09
0.14
0.18
0.22
0.27
0.31
0.36
0.40
600 0.00
0.05
0.11
0.16
0.22
0.27
0.32
0.38
0.43
0.49
700 0.00
0.06
0.13
0.19
0.25
0.31
0.38
0.44
0.50
0.57
800 0.00
0.07
0.14
0.22
0.29
0.36
0.43
0.50
0.58
0.65
900 0.00
0.08
0.16
0.24
0.32
0.40
0.49
0.57
0.65
0.73
1000 0.00
0.09
0.18
0.27
0.36
0.45
0.54
0.63
0.72
0.81
1100 0.00
0.10
0.20
0.30
0.40
0.49
0.59
0.69
0.79
0.89
1200 0.00
0.11
0.22
0.32
0.43
0.54
0.65
0.76
0.86
0.97
1300
1400
1500
1600
0.00
0.00
0.00
0.00
0.12
0.13
0.14
0.14
0.23
0.25
0.27
0.29
0.35
0.38
0.41
0.43
B
0.47
0.50
0.54
0.58
0.58
0.63
0.67
0.72
0.70
0.76
0.81
0.86
0.82
0.88
0.94
1.01
0.94
1.01
1.08
1.15
1.05
1.13
1.21
1.30
1700 0.00
0.15
0.31
0.46
0.61
0.76
0.92
1.07
1.22
1.38
1800 0.00
0.16
0.32
0.49
0.65
0.81
0.97
1.13
1.30
1.46
1900 0.00
0.17
0.34
0.51
0.68
0.85
1.03
1.20
1.37
1.54
2000 0.00
0.18
0.36
0.54
0.72
0.90
1.08
1.26
1.44
1.62
2100 0.00
0.19
0.38
0.57
0.76
0.94
1.13
1.32
1.51
1.70
2200 0.00
0.20
0.40
0.59
0.79
0.99
1.19
1.39
1.58
1.78
2300 0.00
0.21
0.41
0.62
0.83
1.03
1.24
1.45
1.66
1.86
2400 0.00
0.22
0.43
0.65
0.86
1.08
1.30
1.51
1.73
1.94
2500 0.00
0.23
0.45
0.68
0.90
1.12
1.35
1.57
1.80
2.02
2600 0.00
0.23
0.47
0.70
0.94
1.17
1.40
1.64
1.87
2.10
2700 0.00
0.24
0.49
0.73
0.97
1.21
1.46
1.70
1.94
2.19
2800 0.00
0.25
0.50
0.76
1.01
1.26
1.51
1.76
2.01
2.27
2900 0.00
0.26
0.52
0.78
1.04
1.30
1.57
1.83
2.09
2.35
3000 0.00
0.27
0.54
0.81
1.08
1.35
1.62
1.89
2.16
2.43
3100 0.00
0.28
0.56
0.84
1.12
1.39
1.67
1.95
2.23
2.51
3200 0.00
0.29
0.58
0.86
1.15
1.44
1.73
2.02
2.30
2.59
3300 0.00
0.30
0.59
0.89
1.19
1.48
1.78
2.08
2.37
2.67
3400 0.00
0.31
0.61
0.92
1.22
1.53
1.84
2.14
2.45
2.75
3500 0.00
0.32
0.63
0.95
1.26
1.57
1.89
2.20
2.52
2.83
3600 0.00
0.32
0.65
0.97
1.30
1.62
1.94
2.27
2.59
2.91
3700 0.00
0.33
0.67
1.00
1.33
1.66
2.00
2.33
2.66
3.00
3800 0.00
0.34
0.68
1.03
1.37
1.71
2.05
2.39
2.73
3.08
3900 0.00
0.35
0.70
1.05
1.40
1.75
2.11
2.46
2.81
3.16
4000 0.00
0.36
0.72
1.08
1.44
1.80
2.16
2.52
2.88
3.24
D - d
A
Arc of contact on small pulley
(degrees)
0.00
0.10
180
174
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.00
1.10
1.20
1.30
1.40
1.50
169
163
157
151
145
139
G
113
106
99
91
83
0.91
0.89
0.87
0.85
0.82
0.80
0.77
0.73
0.70
0.65
1.00
0.99
0.97
0.96
0.94
0.93
Factor G
Belt length correction factor C
L
Belt ref.
Corr.
factor
C
L
0.88
0.89
0.90
0.91
0.92
PM 2286
PM 2388
PM 2515
PM 2693
PM 2832
PM 2921 0.93
PM 6883
PM 7646
PM 8408
PM 9169
PM 3010
PM 3124
PM 3327
PM 3531
PM 3734
PM 4089
PM 4191
PM 4470
PM 4648
PM 5029
PM 5410
PM 6121
PM 6502
C
0.94
0.94
0.96
0.97
0.98
1.00
1.01
1.02
1.03
1.04
1.06
1.09
1.10
L
1.11
1.13
1.15
1.17
MV
6
Number of ribs required =
Design kW
(A + B) x G x C
L
81
POWER RATINGS POLYFLEX
®
JB™
Basic Watt per rib
PF
6
26 28 30 32 34 36 38 40 42 45 48 50 53
RPM of faster shaft
585
700
725
75 96 116 136 156 176 195 215 234 264 293 312 341 369 436 473 511
85 109 133 156 180 203 226 250 273 307 341 364 398 431 509 554 598
87 112 136 161 185 209 233 257 281 316 352 375 410 445 525 571 616
870 98 127 156 185 214 242 271 299 327 369 410 438 479 520 615 669 723
950 104 136 167 198 229 260 291 321 352 397 442 472 517 561 664 722 780
1160 118 156 193 231 268 305 342 378 415 469 523 559 612 666 789 858 928
1450 134 181 227 272 318 363 408 453 498 564 630 674 739 804 955 1040 1125
1750 149 204 259 313 367 420 474 527 580 658 737 788 866 943 1121 1222 1322
2850 187 272 357 441 525 608 691 773 854 976 1097 1177 1296 1415 1689 1843 1997
3450 200 301 402 501 601 699 797 894 991 1135 1278 1373 1514 1654 1977 2159 2340
20
34
47
58
24
42
58
72
28
49
32
57
36
64
40
72
44
79
47
86
51 57 63 67 72 78 91 99 106
94 105 116 123 134 144 169 183 197
68 79 90 101 112 122 133 149 165 175 191 206 242 263 283
86 100 114 128 142 156 170 191 211 225 245 265 312 339 365
100
200
300
400
500
600
700
800
900 100 130 160 190 220 249 278 307 336 379 422 451 493 536 634 689 744
1000 107 140 173 206 238 271 303 335 367 414 462 493 540 586 694 755 816
1100 114 150 186 222 257 292 327 362 397 449 500 534 585 636 753 820 886
1200 120 159 198 237 275 313 351 389 426 482 538 575 630 685 812 884 955
1300 126 168 210 251 292 333 374 415 455 515 575 615 674 733 870 947 1024
1400 132 177 221 265 310 353 397 440 484 548 612 655 718 781 927 1009 1091
1500 137 185 232 279 326 373 419 466 512 580 648 693 761 828 983 1071 1158
1600
1700
1800
1900
67
77
85 109 133 156 180 203 226 250 273 307 341 364 398 431 509 554 598
93 120 147 173 200 226 253 279 305 344 382 408 446 484 572 622 672
142
147
151
156
85 102 120 137 154 171 188 205 231 256 273 298 322 380 412 445
97 118 138 159 179 199 220 240 269 299 319 348 378 445 484 522
193
200
208
215
243
253
264
274
293
306
319
332
343
359
375
390
392
411
430
448
441
463
484
505
490
515
539
562
A
539
566
593
619
612
643
674
704
684
719
754
788
732
770
807
844
803
845
887
927
874
920
965
1010
1039
1094
1148
1202
1132
1192
1251
1310
1224
1289
1354
1418
2000 160 222 283 344 405 466 526 586 645 734 822 881 968 1055 1255 1368 1481
2200 167 235 302 369 435 501 566 632 696 793 889 953 1048 1142 1360 1483 1606
2400 174 247 320 392 464 535 606 676 746 851 954 1023 1126 1228 1463 1596 1728
2600 180 259 337 414 491 568 644 720 795 907 1018 1092 1202 1312 1564 1707 1849
2800 186 270 353 436 518 600 681 762 843 962 1081 1160 1278 1394 1664 1816 1967
3000 191 280 369 457 544 631 718 804 889 1017 1143 1227 1352 1476 1762 1924 2084
3200 195 290 384 477 570 662 753 844 935 1070 1204 1292 1424 1556 1858 2029 2199
3400 199 299 398 497 595 692 788 884 980 1122 1263 1357 1496 1634 1953 2134 2312
3600 202 308 412 516 619 721 822 923 1024 1173 1322 1420 1567 1712 2047 2236 2423
3800 205 316 425 534 642 749 856 962 1067 1224 1379 1482 1636 1788 2139 2337 2533
5400
5600
5800
6000
6200
6400
6600
6800
7000
4000 208 323 438 552 665 777 889 999 1110 1274 1436 1544 1704 1863 2230 2437 2641
4200 210 331 450 569 687 804 921 1036 1151 1322 1492 1604 1772 1937 2319 2535 2748
4400 212 337 462 586 709 831 952 1073 1192 1370 1547 1664 1838 2010 2408 2631 2853
4600 213 344 473 602 730 857 983 1108 1232 1418 1601 1722 1903 2082 2495 2726 2956
4800 214 350 484 618 751 882 1013 1143 1272 1464 1654 1780 1968 2153 2580 2820 3058
5000 214 355 495 633 771 907 1043 1177 1311 1510 1707 1837 2031 2223 2665 2913 3158
5200 215 360 505 648 790 932 1072 1211 1349 1555 1759 1893 2094 2292 2748 3004 3257
365
369
373
377
380
514
524
532
541
549
663
677
690
703
716
810
828
847
864
882
956
979
1002
1024
1046
1100
1128
1156
1183
1209
1244
1277
1309
1340
1371
1387
1424
1460
1496
1531
1599
1643
1686
1728
1770
1809
1860
1909
1958
2006
1948
2003
2056
2109
2161
2155
2216
2276
2335
2393
2360
2427
2493
2558
2622
2830
2911
2990
3069
3146
3094
3182
3269
3355
3439
3354
3450
3544
3637
3728
384 557 728 899 1068 1235 1401 1566 1811 2053 2213 2450 2685 3222 3522 3817
386 564 740 915 1089 1260 1431 1600 1851 2099 2263 2506 2747 3296 3604 3906
389 571 752 931 1109 1285 1460 1634 1891 2145 2313 2562 2808 3370 3684 3992
391 578 763 947 1129 1310 1489 1666 1930 2190 2362 2617 2868 3442 3763 4077
7500
8000
8500
9000
10000
395 593 790 985 1178 1369 1558 1746 2025 2300 2481 2750 3014 3618 3954 4283
397 606 814 1020 1223 1425 1625 1823 2116 2405 2595 2877 3155 3786 4137 4479
397 618 836 1053 1267 1478 1688 1896 2203 2506 2705 2999 3289 3947 4311 4665
627 856 1083 1307 1529 1748 1965 2286 2602 2810 3116 3418 4100 4476 4841
640 890 1137 1381 1621 1859 2094 2441 2782 3005 3334 3657 4381 4778 5161
56 63 67 71
For speeds over 30 m/s we recommend that pulleys be dynamically balanced.
5M-JB
82
Please contact Gates application engineers for 3M-JB drive design data.
POWER RATINGS POLYFLEX
®
JB™
Basic Watt per rib for speed ratio Arc of correction factor G
RPM of faster shaft
5400
5600
5800
6000
6200
6400
6600
6800
7000
7500
8000
8500
9000
10000
3800
4000
4200
4400
4600
4800
5000
5200
2400
2600
2800
3000
3200
3400
3600
1300
1400
1500
1600
1700
1800
1900
2000
2200
500
600
700
800
900
1000
1100
1200
585
700
725
870
950
1160
1450
1750
2850
3450
100
200
300
400
1.00
1.02
1.04
1.06
1.09
1.12
1.16
1.22
1.30 >1.46
to to to to to to to to to
1.01
1.03
1.05
1.08
1.11
1.15
1.21
1.29
1.46
25
27
28
30
33
21
21
22
23
23
18
19
19
20
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
42
43
44
46
47
36
38
39
40
50
54
57
75
80
85
61 91
67 101
62
64
66
68
70
54
56
58
60
3
4
2
3
2
2
10
12
5
6
6
8
5
6
4
5
10
12
19
23
10
12
7
9
6
7
15
18
29
35
10
12
13
16
8
9
19
24
38
46
10
12
12
15
16
19
24
29
48
58
13
13
14
15
15
16
17
17
26
27
28
30
31
32
34
35
38
40
42
44
46
48
50
52
51
54
56
59
62
64
67
70
0
12
1
24
1
36
1 1 2
1
2
2
2
3
3
3
4
4
4
5
5
5
6
6
6
7
7
8
9
9
10
11
11
2
3
3
4
5
5
6
7
7
8
9
9
10
11
11
12
13
13
15
16
17
19
20
22
23
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
22
24
26
28
30
32
34
1
B
4
5
7
8
9
11
12
13
15
16
17
19
20
21
23
24
26
27
30
32
35
38
40
43
46
5
7
8
10
12
13
15
17
18
20
22
23
25
27
29
30
32
34
37
40
44
47
50
54
57
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
44
48
52
56
60
64
68
7
9
12
14
16
19
21
23
26
28
31
33
35
38
40
42
45
47
52
56
61
66
70
75
80
3 3 4 5
1
48
2
60
2
72
2
85
64
70
75
72
78
85
81
86
91
97
91 103
97 109
77
81
89 102 115
94 107 121
85 99 113 127
89 103 118 133
93 108 124 139
97 113 129 145
101 117 134 151
105 122 140 157
64
67
70
74
77
81
84
87
16
19
19
23
26
31
8
11
3
5
39
47
44
53
77 86
93 104
9
12
3
6
18
21
22
26
29
35
46
48
51
54
59
35
38
40
43
24
27
30
32
13
16
19
21
51
54
57
60
66
39
42
45
48
27
30
33
36
15
18
21
24
12
14
15
18
19
23
29
35
57
69
14
16
17
20
22
27
34
41
67
81
73
75
91
94
78 97
81 101
83 104
86 107
89 111
91 114
94 117
101 126
107 134
114 143
121 151
134 168
109 127 145 163
113 132 150 169
117 136 156 175
121 141 161 181
125 146 167 187
129 150 172 193
133 155 177 199
137 160 183 205
141 164 188 211
151 176 201 226
161 188 215 242
171 200 228 257
181 211 242 272
201 235 269 302
D - d
A
Arc of contact on small pulley
(degrees)
0.00
0.10
180
174
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.00
1.10
1.20
1.30
1.40
1.50
169
163
157
151
145
139
G
113
106
99
91
83
0.91
0.89
0.87
0.85
0.82
0.80
0.77
0.73
0.70
0.65
1.00
0.99
0.97
0.96
0.94
0.93
Factor G
Belt length correction factor C
L
Belt ref.
Belt ref.
Corr.
factor
C
L
5M-JB 580
5M-JB 600
5M-JB 615
5M-JB 630
5M-JB 650
5M-JB 670
5M-JB 690
5M-JB 710
5M-JB 730
5M-JB 750
5M-JB 775
0.83
0.84
0.85
0.86
0.87
5M-JB 800
5M-JB 825
5M-JB 850
5M-JB 875
5M-JB 900
5M-JB 280
5M-JB 290
5M-JB 300
5M-JB 307
5M-JB 315
5M-JB 325 0.88
5M-JB 925
5M-JB 530
5M-JB 545
5M-JB 560
5M-JB 345
5M-JB 355
5M-JB 365
5M-JB 375
5M-JB 387
5M-JB 400
5M-JB 412
5M-JB 425
5M-JB 437
5M-JB 450
5M-JB 462
5M-JB 475
5M-JB 487
5M-JB 500
5M-JB 515
5M-JB 335
C
0.89
0.89
0.90
0.91
0.92
0.93
0.94
0.95
0.96
0.96
0.97
0.98
0.99
1.00
1.00
1.01
5M-JB 950
5M-JB 975
5M-JB 1000
5M-JB 1030
5M-JB 1060
5M-JB 1090
5M-JB 1120
5M-JB 1150
5M-JB 1180
5M-JB 1220
5M-JB 1250
5M-JB 1280
5M-JB 1320
5M-JB 1360
5M-JB 1400
L
1.25
1.26
1.27
1.28
1.29
1.29
5M-JB 1450
5M-JB 1500
1.30
1.31
1.32
1.02
1.03
1.04
1.19
1.20
1.20
1.21
1.22
1.23
1.24
1.25
1.18
1.14
1.15
1.16
1.17
1.17
1.05
1.06
1.06
1.07
1.08
1.09
1.10
1.10
1.11
1.12
1.13
Corr.
factor
C
L
PF
6
Number of ribs required =
Design kW x 1000
(A + B) x G x C
L
83
POWER RATINGS POLYFLEX
®
JB™
Basic kW per rib
PF
6
42 45 48 50 53 56 63 67 71 75 80 85 90
RPM of faster shaft
585 0.30
0.36
0.42
0.45
0.51
0.57
0.70
0.77
0.85
0.92
1.01
1.10
1.19
1.28
1.37
1.48
1.59
700 0.35
0.41
0.48
0.53
0.59
0.66
0.81
0.90
0.99
1.07
1.18
1.29
1.40
1.50
1.61
1.73
1.86
725 0.36
0.43
0.50
0.54
0.61
0.68
0.84
0.93
1.02
1.11
1.22
1.33
1.44
1.55
1.66
1.79
1.92
870 0.41
0.49
0.57
0.63
0.71
0.79
0.98
1.09
1.19
1.30
1.43
1.56
1.69
1.82
1.95
2.10
2.25
950 0.44
0.53
0.62
0.67
0.76
0.85
1.05
1.17
1.29
1.40
1.54
1.68
1.82
1.96
2.10
2.27
2.44
1160 0.51
0.61
0.72
0.79
0.90
1.00
1.25
1.39
1.52
1.66
1.83
2.00
2.17
2.34
2.51
2.70
2.90
1450 0.60
0.73
0.86
0.95
1.08
1.20
1.50
1.67
1.84
2.01
2.22
2.43
2.63
2.84
3.04
3.28
3.53
1750 0.68
0.84
0.99
1.10
1.25
1.40
1.76
1.96
2.16
2.36
2.60
2.85
3.09
3.33
3.58
3.86
4.15
2850 0.94
1.19
1.43
1.59
1.83
2.06
2.61
2.92
3.23
3.53
3.91
4.29
4.66
5.03
5.39
5.83
6.26
3450 1.06
1.35
1.63
1.82
2.11
2.39
3.03
3.40
3.76
4.12
4.57
5.01
5.44
5.87
6.30
6.80
7.30
100 0.07
0.08
0.09
0.10
0.11
0.12
0.15
0.16
0.18
0.19
0.21
0.23
0.25
0.26
0.28
0.30
0.32
200 0.13
0.15
0.17
0.18
0.21
0.23
0.28
0.30
0.33
0.36
0.39
0.43
0.46
0.49
0.53
0.57
0.61
300 0.18
0.21
0.24
0.26
0.29
0.32
0.39
0.43
0.47
0.51
0.56
0.61
0.66
0.71
0.76
0.82
0.87
400 0.22
0.26
0.30
0.33
0.37
0.41
0.50
0.56
0.61
0.66
0.72
0.79
0.85
0.92
0.98
1.05
1.13
500 0.27
0.32
0.37
0.40
0.45
0.50
0.61
0.67
0.74
0.80
0.88
0.96
1.04
1.12
1.19
1.29
1.38
600 0.31
0.37
0.42
0.46
0.52
0.58
0.71
0.79
0.86
0.94
1.03
1.13
1.22
1.31
1.40
1.51
1.62
700 0.35
0.41
0.48
0.53
0.59
0.66
0.81
0.90
0.99
1.07
1.18
1.29
1.40
1.50
1.61
1.73
1.86
800 0.38
0.46
0.54
0.59
0.66
0.74
0.91
1.01
1.11
1.21
1.33
1.45
1.57
1.69
1.81
1.95
2.09
900 0.42
0.50
0.59
0.65
0.73
0.81
1.01
1.12
1.23
1.34
1.47
1.61
1.74
1.87
2.01
2.16
2.32
1000 0.45
0.55
0.64
0.70
0.80
0.89
1.10
1.22
1.34
1.46
1.61
1.76
1.91
2.05
2.20
2.37
2.55
1100 0.49
0.59
0.69
0.76
0.86
0.96
1.19
1.33
1.46
1.59
1.75
1.91
2.07
2.23
2.39
2.58
2.77
1200 0.52
0.63
0.74
0.81
0.92
1.03
1.28
1.43
1.57
1.71
1.89
2.06
2.24
2.41
2.58
2.79
2.99
1300 0.55
0.67
0.79
0.87
0.98
1.10
1.37
1.53
1.68
1.83
2.02
2.21
2.40
2.58
2.77
2.99
3.21
1400 0.58
0.71
0.84
0.92
1.05
1.17
1.46
1.63
1.79
1.95
2.15
2.35
2.55
2.75
2.95
3.19
3.42
1500 0.61
0.75
0.88
0.97
1.10
1.24
1.55
1.72
1.90
2.07
2.28
2.50
2.71
2.92
3.13
3.38
3.63
1600
1700
1800
1900
0.64
0.67
0.69
0.72
0.78
0.82
0.85
0.89
0.93
0.97
1.01
1.06
1.02
1.07
1.12
1.17
1.16
1.22
1.28
1.33
1.30
1.37
1.43
1.50
1.63
1.72
1.80
1.88
1.82
1.91
2.01
2.10
A
2.00
2.11
2.21
2.31
2.19
2.30
2.41
2.53
2.41
2.54
2.67
2.79
2.64
2.78
2.92
3.06
2.86
3.02
3.17
3.32
3.09
3.25
3.42
3.58
3.31
3.49
3.66
3.84
3.58
3.77
3.96
4.14
3.84
4.05
4.25
4.45
2000 0.75
0.92
1.10
1.21
1.39
1.56
1.96
2.19
2.41
2.64
2.91
3.19
3.46
3.74
4.01
4.33
4.65
2200 0.80
0.99
1.18
1.31
1.50
1.68
2.12
2.37
2.61
2.86
3.16
3.46
3.76
4.05
4.34
4.69
5.04
2400 0.84
1.05
1.26
1.40
1.60
1.80
2.27
2.54
2.81
3.07
3.39
3.72
4.04
4.36
4.67
5.05
5.42
2600 0.89
1.11
1.33
1.48
1.70
1.92
2.43
2.71
3.00
3.28
3.63
3.97
4.32
4.66
5.00
5.40
5.80
2800 0.93
1.17
1.41
1.57
1.80
2.03
2.57
2.88
3.18
3.48
3.86
4.23
4.59
4.95
5.31
5.74
6.17
3000 0.97
1.23
1.48
1.65
1.90
2.15
2.72
3.04
3.36
3.68
4.08
4.47
4.86
5.24
5.62
6.08
6.52
3200 1.01
1.28
1.55
1.73
1.99
2.25
2.86
3.20
3.54
3.88
4.30
4.71
5.12
5.53
5.93
6.40
6.88
3400 1.05
1.34
1.62
1.80
2.08
2.36
3.00
3.36
3.72
4.07
4.51
4.95
5.38
5.80
6.22
6.72
7.22
3600 1.09
1.39
1.68
1.88
2.17
2.46
3.14
3.52
3.89
4.26
4.72
5.18
5.63
6.07
6.52
7.04
7.55
3800 1.12
1.44
1.75
1.95
2.26
2.57
3.27
3.67
4.06
4.45
4.93
5.41
5.88
6.34
6.80
7.34
7.88
4000 1.16
1.48
1.81
2.03
2.35
2.67
3.40
3.81
4.22
4.63
5.13
5.63
6.12
6.60
7.08
7.64
8.19
4200 1.19
1.53
1.87
2.09
2.43
2.76
3.53
3.96
4.39
4.81
5.33
5.84
6.35
6.85
7.35
7.93
8.50
4400 1.22
1.57
1.93
2.16
2.51
2.86
3.65
4.10
4.54
4.98
5.52
6.06
6.58
7.10
7.61
8.21
8.80
4600 1.25
1.62
1.99
2.23
2.59
2.95
3.77
4.24
4.70
5.15
5.71
6.26
6.81
7.34
7.87
8.49
9.09
4800 1.27
1.66
2.04
2.29
2.67
3.04
3.89
4.37
4.85
5.32
5.90
6.47
7.02
7.58
8.12
8.75
9.37
5000 1.30
1.70
2.09
2.35
2.74
3.13
4.01
4.51
5.00
5.48
6.08
6.66
7.24
7.80
8.36
9.01
9.65
5200 1.33
1.74
2.15
2.41
2.82
3.21
4.13
4.64
5.14
5.64
6.25
6.86
7.45
8.03
8.59
9.26
9.91
5400 1.35
1.77
2.20
2.47
2.89
3.30
4.24
4.76
5.28
5.80
6.42
7.04
7.65
8.24
8.82
9.50
10.16
5600 1.37
1.81
2.24
2.53
2.96
3.38
4.35
4.89
5.42
5.95
6.59
7.22
7.84
8.45
9.04
9.73
10.40
5800 1.39
1.84
2.29
2.59
3.02
3.46
4.45
5.01
5.56
6.09
6.76
7.40
8.03
8.65
9.26
9.96
10.64
6000 1.41
1.88
2.34
2.64
3.09
3.54
4.56
5.13
5.69
6.24
6.91
7.57
8.22
8.85
9.46 10.17
10.86
6200 1.43
1.91
2.38
2.69
3.15
3.61
4.66
5.24
5.81
6.38
7.07
7.74
8.40
9.04
9.66 10.38
11.07
6400 1.45
1.94
2.42
2.74
3.22
3.68
4.75
5.35
5.94
6.51
7.22
7.90
8.57
9.22
9.85 10.58
11.28
6600 1.46
1.97
2.46
2.79
3.28
3.75
4.85
5.46
6.06
6.64
7.36
8.06
8.74
9.39
10.03 10.76
11.47
6800 1.48
1.99
2.50
2.84
3.33
3.82
4.94
5.56
6.17
6.77
7.50
8.21
8.90
9.56
10.20 10.94
11.65
7000 1.49
2.02
2.54
2.88
3.39
3.89
5.03
5.67
6.29
6.89
7.64
8.35
9.05
9.72
10.37 11.11
7500 1.52
2.08
2.63
2.99
3.52
4.05
5.24
5.91
6.55
7.18
7.95
8.69
9.40 10.09
10.74
8000 1.54
2.13
2.70
3.08
3.64
4.19
5.44
6.13
6.80
7.45
8.23
8.99
9.71 10.40
8500 1.56
2.17
2.77
3.16
3.75
4.32
5.61
6.32
7.01
7.68
8.48
9.25
9000
10000
2.20
2.82
3.24
3.84
4.43
5.77
6.50
7.21
7.89
8.70
2.23
2.91
3.34
3.99
4.62
6.02
6.78
7.51
8.21
95 100 106 112
For speeds over 30 m/s we recommend that pulleys be dynamically balanced.
7M-JB
84
Please contact Gates application engineers for 3M-JB drive design data.
POWER RATINGS POLYFLEX
®
JB™
Basic kW per rib for speed ratio Arc of correction factor G
RPM of faster shaft
1.00
1.02
1.04
1.06
1.09
1.12
1.16
1.22
1.30 >1.46
to to to to to to to to to
1.01
1.03
1.05
1.08
1.11
1.15
1.21
1.29
1.46
585 0.000
0.005
0.011
0.016
0.022
0.027
0.033
0.038
0.044
0.049
700 0.000
0.007
0.013
0.020
0.026
0.033
0.039
0.046
0.052
0.059
725 0.000
0.007
0.014
0.020
0.027
0.034
0.041
0.047
0.054
0.061
870 0.000
0.008
0.016
0.024
0.033
0.041
0.049
0.057
0.065
0.073
950 0.000
0.009
0.018
0.027
0.036
0.044
0.053
0.062
0.071
0.080
1160 0.000
0.011
0.022
0.032
0.043
0.054
0.065
0.076
0.087
0.097
1450 0.000
0.013
0.027
0.041
0.054
0.068
0.081
0.095
0.108
0.122
1750 0.000
0.016
0.033
0.049
0.065
0.082
0.098
0.114
0.131
0.147
2850 0.000
0.026
0.053
0.080
0.107
0.133
0.160
0.186
0.213
0.239
3450 0.000
0.032
0.065
0.097
0.129
0.161
0.193
0.226
0.258
0.290
100 0.000
0.001
0.002
0.003
0.004
0.005
0.006
0.007
0.007
0.008
200 0.000
0.002
0.004
0.006
0.007
0.009
0.011
0.013
0.015
0.017
300 0.000
0.003
0.006
0.008
0.011
0.014
0.017
0.020
0.022
0.025
400 0.000
0.004
0.007
0.011
0.015
0.019
0.022
0.026
0.030
0.034
500 0.000
0.005
0.009
0.014
0.019
0.023
0.028
0.033
0.037
0.042
600 0.000
0.006
0.011
0.017
0.022
0.028
0.034
0.039
0.045
0.050
700 0.000
0.007
0.013
0.020
0.026
0.033
0.039
0.046
0.052
0.059
800 0.000
0.007
0.015
0.022
0.030
0.037
0.045
0.052
0.060
0.067
900 0.000
0.008
0.017
0.025
0.034
0.042
0.050
0.059
0.067
0.076
1000 0.000
0.009
0.019
0.028
0.037
0.047
0.056
0.065
0.075
0.084
1100 0.000
0.010
0.021
0.031
0.041
0.051
0.062
0.072
0.082
0.092
1200 0.000
0.011
0.022
0.034
0.045
0.056
0.067
0.078
0.090
0.101
1300
1400
1500
1600
0.000
0.000
0.000
0.000
0.012
0.013
0.014
0.015
0.024
0.026
0.028
0.030
0.036
0.039
0.042
0.045
B
0.049
0.052
0.056
0.060
0.061
0.065
0.070
0.075
0.073
0.078
0.084
0.090
0.085
0.092
0.098
0.105
0.097
0.105
0.112
0.120
0.109
0.118
0.126
0.134
1700 0.000
0.016
0.032
0.048
0.064
0.079
0.095
0.111
0.127
0.143
1800 0.000
0.017
0.034
0.050
0.067
0.084
0.101
0.118
0.135
0.151
1900 0.000
0.018
0.036
0.053
0.071
0.089
0.106
0.124
0.142
0.160
2000 0.000
0.019
0.037
0.056
0.075
0.093
0.112
0.131
0.149
0.168
2200 0.000
0.020
0.041
0.062
0.082
0.103
0.123
0.144
0.164
0.185
2400 0.000
0.022
0.045
0.067
0.090
0.112
0.134
0.157
0.179
0.202
2600 0.000
0.024
0.049
0.073
0.097
0.121
0.146
0.170
0.194
0.218
2800 0.000
0.026
0.052
0.078
0.105
0.131
0.157
0.183
0.209
0.235
3000 0.000
0.028
0.056
0.084
0.112
0.140
0.168
0.196
0.224
0.252
3200 0.000
0.030
0.060
0.090
0.120
0.149
0.179
0.209
0.239
0.269
3400 0.000
0.032
0.064
0.095
0.127
0.159
0.191
0.222
0.254
0.286
3600 0.000
0.033
0.067
0.101
0.135
0.168
0.202
0.235
0.269
0.302
3800 0.000
0.035
0.071
0.106
0.142
0.177
0.213
0.248
0.284
0.319
4000 0.000
0.037
0.075
0.112
0.150
0.187
0.224
0.262
0.299
0.336
4200 0.000
0.039
0.079
0.118
0.157
0.196
0.235
0.275
0.314
0.353
4400 0.000
0.041
0.082
0.123
0.164
0.205
0.247
0.288
0.329
0.370
4600 0.000
0.043
0.086
0.129
0.172
0.215
0.258
0.301
0.344
0.386
4800 0.000
0.045
0.090
0.134
0.179
0.224
0.269
0.314
0.359
0.403
5000 0.000
0.046
0.094
0.140
0.187
0.233
0.280
0.327
0.374
0.420
5200 0.000
0.048
0.097
0.146
0.194
0.243
0.291
0.340
0.389
0.437
5400 0.000
0.050
0.101
0.151
0.202
0.252
0.303
0.353
0.404
0.454
5600 0.000
0.052
0.105
0.157
0.209
0.262
0.314
0.366
0.419
0.471
5800 0.000
0.054
0.109
0.162
0.217
0.271
0.325
0.379
0.434
0.487
6000 0.000
0.056
0.112
0.168
0.224
0.280
0.336
0.392
0.448
0.504
6200 0.000
0.058
0.116
0.174
0.232
0.290
0.347
0.405
0.463
0.521
6400 0.000
0.059
0.120
0.179
0.239
0.299
0.359
0.418
0.478
0.538
6600 0.000
0.061
0.124
0.185
0.247
0.308
0.370
0.432
0.493
0.555
6800 0.000
0.063
0.127
0.190
0.254
0.318
0.381
0.445
0.508
0.571
7000 0.000
0.065
0.131
0.196
0.262
0.327
0.392
0.458
0.523
0.588
7500 0.000
0.070
0.140
0.210
0.280
0.350
0.420
0.490
0.561
0.630
8000 0.000
0.074
0.150
0.224
0.299
0.374
0.448
0.523
0.598
0.672
8500 0.000
0.079
0.159
0.238
0.318
0.397
0.476
0.556
0.635
0.714
9000 0.000
0.084
0.169
0.252
0.336
0.420
0.504
0.588
0.673
0.756
10000 0.000
0.093
0.187
0.280
0.374
0.467
0.560
0.654
0.747
0.840
D - d
A
Arc of contact on small pulley
(degrees)
0.00
0.10
180
174
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.00
1.10
1.20
1.30
1.40
1.50
169
163
157
151
145
139
G
113
106
99
91
83
0.91
0.89
0.87
0.85
0.82
0.80
0.77
0.73
0.70
0.65
1.00
0.99
0.97
0.96
0.94
0.93
Factor G
Belt length correction factor C
L
Belt ref.
Belt ref.
Corr.
factor
C
L
7M-JB 1120
7M-JB 1150
7M-JB 1180
7M-JB 1220
7M-JB 1250
7M-JB 1280
7M-JB 1320
7M-JB 1360
7M-JB 500
7M-JB 515
7M-JB 530
7M-JB 545
0.87
0.88
0.88
0.89
7M-JB 1400
7M-JB 1450
7M-JB 1500
7M-JB 1550
7M-JB 1030
7M-JB 1060
7M-JB 1090
0.90
0.91
7M-JB 1600
7M-JB 1650
7M-JB 560
7M-JB 580
7M-JB 925
7M-JB 950
7M-JB 975
7M-JB 1000
7M-JB 615
7M-JB 630
7M-JB 650
7M-JB 670
7M-JB 690
7M-JB 710
7M-JB 730
7M-JB 750
7M-JB 775
7M-JB 800
7M-JB 825
7M-JB 850
7M-JB 875
7M-JB 900
7M-JB 600
C
0.91
0.92
0.93
0.94
0.94
0.95
0.96
0.96
0.97
0.98
0.99
1.00
1.00
1.01
1.02
7M-JB 1700
7M-JB 1750
7M-JB 1800
7M-JB 1850
7M-JB 1900
7M-JB 1950
7M-JB 2000
7M-JB 2060
7M-JB 2180
7M-JB 2240
7M-JB 2300
7M-JB 2120
L
1.23
1.24
1.25
1.25
1.02
1.03
1.04
1.04
1.18
1.19
1.19
1.20
1.21
1.21
1.22
1.23
1.16
1.17
1.05
1.06
1.07
1.13
1.14
1.15
1.15
1.07
1.08
1.09
1.09
1.10
1.11
1.11
1.12
Corr.
factor
C
L
PF
6
Number of ribs required =
Design kW
(A + B) x G x C
L
85
POWER RATINGS POLYFLEX
®
JB™
Basic kW per rib
PF
6
67 71 75 80 85 90 95 100 106 112 118 125 132 140 150 160 170
RPM of faster shaft
585 1.01
1.16
1.30
1.48
1.66
1.84
2.02
2.19
2.40
2.61
2.82
3.07
3.31
3.58
3.93
4.27
4.61
700 1.17
1.35
1.52
1.73
1.94
2.15
2.36
2.57
2.82
3.06
3.31
3.60
3.88
4.21
4.61
5.01
5.41
725 1.21
1.39
1.56
1.78
2.00
2.22
2.43
2.65
2.90
3.16
3.42
3.71
4.01
4.34
4.76
5.17
5.59
870 1.40
1.61
1.82
2.08
2.34
2.59
2.85
3.10
3.41
3.71
4.01
4.36
4.71
5.11
5.60
6.09
6.58
950 1.51
1.73
1.96
2.24
2.52
2.80
3.07
3.35
3.68
4.01
4.34
4.72
5.09
5.52
6.06
6.59
7.11
1160 1.77
2.04
2.31
2.65
2.98
3.32
3.65
3.98
4.38
4.77
5.17
5.62
6.07
6.59
7.23
7.86
8.49
1450 2.11
2.44
2.77
3.19
3.60
4.01
4.42
4.82
5.31
5.79
6.27
6.83
7.38
8.01
8.79
9.56
10.33
1750 2.44
2.84
3.23
3.72
4.21
4.70
5.18
5.66
6.23
6.80
7.37
8.03
8.68
9.42
10.34 11.24
12.14
2850 3.51
4.12
4.73
5.49
6.25
6.99
7.73
8.47
9.34 10.20
11.06
12.05
13.02 14.12
15.48 16.80
18.10
3450 4.01
4.73
5.45
6.35
7.23
8.11
8.98
9.83
10.85 11.86
12.85
13.99
15.11 16.36
17.90 19.39
20.84
100 0.23
0.25
0.28
0.32
0.35
0.39
0.42
0.45
0.49
0.53
0.58
0.62
0.67
0.72
0.79
0.85
0.92
200 0.41
0.46
0.52
0.58
0.65
0.72
0.78
0.85
0.92
1.00
1.08
1.17
1.26
1.36
1.49
1.61
1.74
300 0.58
0.66
0.74
0.83
0.93
1.02
1.12
1.21
1.33
1.44
1.55
1.68
1.81
1.96
2.15
2.33
2.52
400 0.74
0.84
0.94
1.07
1.19
1.32
1.44
1.57
1.72
1.86
2.01
2.18
2.35
2.55
2.79
3.03
3.27
500 0.89
1.02
1.14
1.29
1.45
1.60
1.76
1.91
2.09
2.27
2.45
2.66
2.87
3.11
3.41
3.70
4.00
600 1.04
1.18
1.33
1.51
1.70
1.88
2.06
2.24
2.46
2.67
2.89
3.14
3.38
3.67
4.02
4.37
4.71
700 1.17
1.35
1.52
1.73
1.94
2.15
2.36
2.57
2.82
3.06
3.31
3.60
3.88
4.21
4.61
5.01
5.41
800 1.31
1.50
1.70
1.94
2.17
2.41
2.65
2.88
3.17
3.45
3.73
4.05
4.37
4.74
5.20
5.65
6.10
900 1.44
1.66
1.87
2.14
2.40
2.67
2.93
3.20
3.51
3.82
4.13
4.50
4.86
5.26
5.77
6.28
6.78
1000 1.57
1.81
2.04
2.34
2.63
2.92
3.21
3.50
3.85
4.19
4.54
4.93
5.33
5.78
6.34
6.89
7.45
1100 1.69
1.95
2.21
2.53
2.85
3.17
3.49
3.80
4.18
4.56
4.93
5.36
5.80
6.29
6.90
7.50
8.10
1200 1.81
2.10
2.38
2.72
3.07
3.42
3.76
4.10
4.51
4.92
5.32
5.79
6.26
6.79
7.45
8.10
8.75
1300 1.93
2.24
2.54
2.91
3.29
3.66
4.03
4.39
4.83
5.27
5.70
6.21
6.71
7.28
7.99
8.69
9.39
1400 2.05
2.37
2.70
3.10
3.50
3.89
4.29
4.68
5.15
5.62
6.08
6.62
7.16
7.77
8.52
9.27
10.01
1500 2.16
2.51
2.85
3.28
3.70
4.13
4.55
4.97
5.47
5.96
6.46
7.03
7.60
8.25
9.05
9.85
10.63
1600
1700
1800
1900
2.27
2.38
2.49
2.60
2.64
2.77
2.90
3.02
3.01
3.16
3.30
3.45
3.46
3.63
3.81
3.98
3.91
4.11
4.31
4.51
4.36
4.58
4.81
5.03
4.80
5.06
5.30
5.55
5.25
5.52
5.80
6.07
A
5.78
6.08
6.39
6.68
6.30
6.64
6.97
7.30
6.83
7.19
7.55
7.91
7.43
7.83
8.22
8.61
8.04
8.47
8.89
8.72
9.19
9.65
9.31 10.11
9.57 10.41
10.08 10.97
10.59 11.52
11.09 12.06
11.24
11.85
12.44
13.02
2000 2.70
3.15
3.59
4.15
4.70
5.25
5.79
6.33
6.98
7.62
8.26
8.99
9.73 10.55
11.58 12.59
13.59
2200 2.90
3.39
3.88
4.48
5.08
5.68
6.27
6.86
7.56
8.25
8.94
9.74
10.54 11.43
12.54 13.64
14.72
2400 3.09
3.62
4.15
4.80
5.45
6.09
6.73
7.37
8.12
8.87
9.62
10.48
11.33 12.29
13.48 14.65
15.80
2600 3.28
3.85
4.41
5.11
5.81
6.50
7.18
7.86
8.67
9.47
10.27
11.19
12.09 13.12
14.38 15.63
16.85
2800 3.46
4.07
4.67
5.42
6.16
6.89
7.62
8.35
9.21 10.06
10.90
11.88
12.84 13.93
15.26 16.57
17.85
3000 3.64
4.28
4.92
5.71
6.50
7.28
8.05
8.82
9.73 10.63
11.52
12.55
13.56 14.71
16.11 17.48
18.82
3200 3.81
4.49
5.16
6.00
6.83
7.65
8.47
9.28
10.24 11.19
12.12
13.20
14.26 15.46
16.92 18.35
19.75
3400 3.97
4.69
5.40
6.28
7.15
8.02
8.88
9.72
10.73 11.72
12.70
13.83
14.94 16.19
17.71 19.19
20.63
3600 4.12
4.88
5.62
6.55
7.47
8.37
9.27 10.16
11.21 12.25
13.27
14.44
15.59 16.88
18.46
19.99
21.46
3800 4.27
5.06
5.84
6.81
7.77
8.72
9.65 10.58
11.67 12.75
13.81
15.03
16.22 17.56
19.18
20.74
22.25
4000 4.42
5.24
6.06
7.07
8.06
9.05
10.02 10.98
12.12 13.24
14.34
15.59
16.82 18.20
19.86 21.46
23.00
4200 4.56
5.41
6.26
7.31
8.35
9.37
10.38 11.38
12.55 13.71
14.84
16.14
17.40
18.81
20.50 22.13
23.69
4400 4.69
5.58
6.46
7.55
8.62
9.68
10.73 11.76
12.97 14.16
15.33
16.66
17.95 19.39
21.11 22.76
24.33
4600 4.82
5.74
6.65
7.78
8.89
9.98
11.06 12.12
13.37 14.59
15.79
17.15
18.47 19.93
21.68 23.34
4800 4.94
5.89
6.84
8.00
9.15
10.27
11.38 12.47
13.76 15.01
16.23
17.62
18.97 20.45
22.21
5000 5.05
6.04
7.01
8.21
9.39
10.55
11.69 12.81
14.12 15.40
16.65
18.07
19.43 20.93
22.70
5200 5.16
6.18
7.18
8.41
9.63
10.82
11.99 13.13
14.47
15.78
17.05
18.48
19.86 21.37
5400 5.26
6.31
7.34
8.61
9.85
11.07
12.27 13.44
14.81
16.14
17.43
18.88
20.27 21.78
5600 5.36
6.43
7.49
8.79
10.07
11.32
12.54 13.73
15.12 16.47
17.78
19.24
20.64
5800 5.45
6.55
7.64
8.97
10.27
11.55
12.79
14.01
15.42 16.79
18.10
19.58
6000 5.53
6.66
7.77
9.14
10.47
11.76
13.03
14.26
15.70 17.08
18.41
19.89
6200 5.61
6.77
7.90
9.29
10.65
11.97
13.26 14.51
15.96 17.35
18.68
6400 5.68
6.86
8.02
9.44
10.82
12.16
13.47 14.73
16.20 17.60
18.94
6600 5.75
6.95
8.13
9.58
10.98
12.34
13.66 14.94
16.42 17.82
6800 5.81
7.03
8.24
9.70
11.13
12.51
13.84 15.13
16.61 18.02
7000 5.86
7.11
8.33
9.82
11.26
12.66
14.01 15.31
16.79
7500 5.96
7.26
8.53
10.07
11.55
12.98
14.35 15.66
8000 6.01
7.36
8.67 10.25
11.76
13.21
14.58
8500 7.41
8.75 10.36
11.89
11M-JB
For speeds over 30 m/s we recommend that pulleys be dynamically balanced.
86
Please contact Gates application engineers for 3M-JB drive design data.
POWER RATINGS POLYFLEX
®
JB™
Basic kW per rib for speed ratio Arc of correction factor G
RPM of faster shaft
1.00
1.02
1.04
1.06
1.09
1.12
1.16
1.22
1.30 >1.46
to to to to to to to to to
1.01
1.03
1.05
1.08
1.11
1.15
1.21
1.29
1.46
585 0.00
0.02
0.03
0.05
0.06
0.08
0.09
0.11
0.12
0.14
700 0.00
0.02
0.04
0.05
0.07
0.09
0.11
0.13
0.15
0.16
725 0.00
0.02
0.04
0.06
0.08
0.09
0.11
0.13
0.15
0.17
870 0.00
0.02
0.05
0.07
0.09
0.11
0.14
0.16
0.18
0.20
950 0.00
0.02
0.05
0.07
0.10
0.12
0.15
0.17
0.20
0.22
1160 0.00
0.03
0.06
0.09
0.12
0.15
0.18
0.21
0.24
0.27
1450 0.00
0.04
0.08
0.11
0.15
0.19
0.23
0.26
0.30
0.34
1750 0.00
0.05
0.09
0.14
0.18
0.23
0.27
0.32
0.37
0.41
2850 0.00
0.07
0.15
0.22
0.30
0.37
0.45
0.52
0.59
0.67
3450 0.00
0.09
0.18
0.27
0.36
0.45
0.54
0.63
0.72
0.81
100 0.00
0.00
0.01
0.01
0.01
0.01
0.02
0.02
0.02
0.02
200 0.00
0.01
0.01
0.02
0.02
0.03
0.03
0.04
0.04
0.05
300 0.00
0.01
0.02
0.02
0.03
0.04
0.05
0.05
0.06
0.07
400 0.00
0.01
0.02
0.03
0.04
0.05
0.06
0.07
0.08
0.09
500 0.00
0.01
0.03
0.04
0.05
0.07
0.08
0.09
0.10
0.12
600 0.00
0.02
0.03
0.05
0.06
0.08
0.09
0.11
0.13
0.14
700 0.00
0.02
0.04
0.05
0.07
0.09
0.11
0.13
0.15
0.16
800 0.00
0.02
0.04
0.06
0.08
0.10
0.13
0.15
0.17
0.19
900 0.00
0.02
0.05
0.07
0.09
0.12
0.14
0.16
0.19
0.21
1000 0.00
0.03
0.05
0.08
0.10
0.13
0.16
0.18
0.21
0.23
1100 0.00
0.03
0.06
0.09
0.11
0.14
0.17
0.20
0.23
0.26
1200 0.00
0.03
0.06
0.09
0.13
0.16
0.19
0.22
0.25
0.28
1300
1400
1500
1600
0.00
0.00
0.00
0.00
0.03
0.04
0.04
0.04
0.07
0.07
0.08
0.08
0.10
0.11
0.12
0.12
B
0.14
0.15
0.16
0.17
0.17
0.18
0.20
0.21
0.20
0.22
0.23
0.25
0.24
0.26
0.27
0.29
0.27
0.29
0.31
0.33
0.30
0.33
0.35
0.38
1700 0.00
0.04
0.09
0.13
0.18
0.22
0.27
0.31
0.35
0.40
1800 0.00
0.05
0.09
0.14
0.19
0.23
0.28
0.33
0.38
0.42
1900 0.00
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.40
0.45
2000 0.00
0.05
0.10
0.16
0.21
0.26
0.31
0.36
0.42
0.47
2200 0.00
0.06
0.11
0.17
0.23
0.29
0.34
0.40
0.46
0.52
2400 0.00
0.06
0.13
0.19
0.25
0.31
0.38
0.44
0.50
0.56
2600 0.00
0.07
0.14
0.20
0.27
0.34
0.41
0.47
0.54
0.61
2800 0.00
0.07
0.15
0.22
0.29
0.36
0.44
0.51
0.58
0.66
3000 0.00
0.08
0.16
0.23
0.31
0.39
0.47
0.55
0.63
0.70
3200 0.00
0.08
0.17
0.25
0.33
0.42
0.50
0.58
0.67
0.75
3400 0.00
0.09
0.18
0.27
0.35
0.44
0.53
0.62
0.71
0.80
3600 0.00
0.09
0.19
0.28
0.38
0.47
0.56
0.66
0.75
0.84
3800 0.00
0.10
0.20
0.30
0.40
0.50
0.59
0.69
0.79
0.89
4000 0.00
0.10
0.21
0.31
0.42
0.52
0.63
0.73
0.83
0.94
4200 0.00
0.11
0.22
0.33
0.44
0.55
0.66
0.77
0.88
0.98
4400 0.00
0.11
0.23
0.34
0.46
0.57
0.69
0.80
0.92
1.03
4600 0.00
0.12
0.24
0.36
0.48
0.60
0.72
0.84
0.96
1.08
4800 0.00
0.12
0.25
0.37
0.50
0.63
0.75
0.88
1.00
1.13
5000 0.00
0.13
0.26
0.39
0.52
0.65
0.78
0.91
1.04
1.17
5200 0.00
0.13
0.27
0.41
0.54
0.68
0.81
0.95
1.08
1.22
5400 0.00
0.14
0.28
0.42
0.56
0.70
0.84
0.99
1.13
1.27
5600 0.00
0.15
0.29
0.44
0.58
0.73
0.88
1.02
1.17
1.31
5800 0.00
0.15
0.30
0.45
0.61
0.76
0.91
1.06
1.21
1.36
6000 0.00
0.16
0.31
0.47
0.63
0.78
0.94
1.09
1.25
1.41
6200 0.00
0.16
0.32
0.48
0.65
0.81
0.97
1.13
1.29
1.45
6400 0.00
0.17
0.33
0.50
0.67
0.83
1.00
1.17
1.34
1.50
6600 0.00
0.17
0.34
0.52
0.69
0.86
1.03
1.20
1.38
1.55
6800 0.00
0.18
0.36
0.53
0.71
0.89
1.06
1.24
1.42
1.59
7000 0.00
0.18
0.37
0.55
0.73
0.91
1.09
1.28
1.46
1.64
7500 0.00
0.19
0.39
0.59
0.78
0.98
1.17
1.37
1.56
1.76
8000 0.00
0.21
0.42
0.62
0.83
1.04
1.25
1.46
1.67
1.88
8500 0.00
0.22
0.44
0.66
0.89
1.11
1.33
1.55
1.77
1.99
D - d
A
Arc of contact on small pulley
(degrees)
0.00
0.10
180
174
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.00
1.10
1.20
1.30
1.40
1.50
169
163
157
151
145
139
G
113
106
99
91
83
0.91
0.89
0.87
0.85
0.82
0.80
0.77
0.73
0.70
0.65
1.00
0.99
0.97
0.96
0.94
0.93
Factor G
Belt length correction factor C
L
Belt ref.
Belt ref.
Corr.
factor
C
L
11M-JB 1450
11M-JB 1500
11M-JB 1550
11M-JB 1600
11M-JB 1650
11M-JB 1700
11M-JB 1750
11M-JB 1800
11M-JB 1850
11M-JB 1900
11M-JB 1950
0.90
0.91
0.91
0.92
0.93
11M-JB 2000
11M-JB 2060
11M-JB 2120
11M-JB 2180
11M-JB 2240
11M-JB 710
11M-JB 730
11M-JB 750
11M-JB 775
11M-JB 800
11M-JB 825 0.94
11M-JB 2300
11M-JB 1220
11M-JB 1250
11M-JB 1280
11M-JB 1320
11M-JB 1360
11M-JB 1400
11M-JB 850
11M-JB 875
11M-JB 900
11M-JB 925
11M-JB 950
11M-JB 975
11M-JB 1000
11M-JB 1030
11M-JB 1060
11M-JB 1090
11M-JB 1120
11M-JB 1150
11M-JB 1180
C
0.94
0.95
0.96
0.96
0.97
0.98
0.98
0.99
1.00
1.00
1.01
1.02
1.02
L
1.03
1.04
1.04
1.05
1.06
1.06
1.18
1.15
1.15
1.16
1.17
1.17
1.07
1.08
1.09
1.09
1.10
1.11
1.12
1.12
1.13
1.13
1.14
Corr.
factor
C
L
PF
6
Number of ribs required =
Design kW
(A + B) x G x C
L
87
DRIVE DESIGN EXAMPLE
DRIVE DESIGN EXAMPLE, USING A STANDARD SPEED ELECTRIC MOTOR AND
STANDARD PULLEY DIAMETERS
GIVEN
1. A 30 kilowatt squirrel cage electric motor is to drive an air compressor with following characteristics: flow 4m 3 /min at
0.7 MPa (7 kg/cm
2
) according to DIN.
2. 2850 RPM motor speed.
3. The desired compressor speed is 1250 RPM.
4. Shaft to shaft centre distance should be about 760 mm. Because of space limitations, the maximum pulley datum diameter cannot exceed 220 mm.
5. Normal service - one year of service is requested.
DRIVE DESIGN
Step 1
A one year belt service is normal for this kind of application, thus 6000 hrs life range needs to be taken.
Step 2
A. From table No. 1 the normal service factor is 1.2
B. The power requirement is 30 kW
C. Design power = 1.2 x 30 kW = 36 kW
Step 3
From table No. 2, 3 or 4 find the proper cross-section: Gates Quad-Power II, moulded notch, XPA section.
Step 4
Speed ratio:
2850
1250
= 2.28
Step 5 & 6
Pulley diameters can be selected from tables Nos. 5 and 6. In this case space availability is the limiting factor. For that reason we have to start from the driveN pulley. With a maximum of 220 mm, locate a possible large pulley diameter range in the top row of table No. 6 and go down to find a speed ratio close to 2.28.
Using a driveN pulley of 212 mm and a ratio of 2.23 the driveR becomes 95 mm.
V =
95 x 2850
19100
= 14.2 m/s
Step 7
A. Tentative belt length:
2 x 760 + 1.57 (212 + 95) +
(212 - 95)
2
4 x 760
= 2006 mm
B. From the size listing on page 11, find the closest standard datum length to be
2000 mm or XPA 2000. Then calculate the actual centre distance:
F = 2000 - 1.57 (212 + 95) = 1518 mm
D - d 212 - 95
=
F 1518
= 0.0771
from table No. 9: h = 0.04
7
88
A =
1518 - 0.04 (212 - 95)
2
= 757 mm
Step 8
A. From table A find the basic kW rating: 8.02 kW
B. From table B find the additional kW for speed ratio: 0.66 kW
C. Table C gives the additional kW for belt life:
C =
95 x 2850
362319
= 0.75
RESULTS
Service life range: 6000 hrs.
Service factor: 1.2
Design power: 36 kW
Belt section: XPA
Speed ratio: 2.28
d: 95
D: 212
Belt speed: 14.2 m/s
Tentative belt length: 2006 mm
Standard datum length:
2000 mm or XPA 2000
Actual centre distance: 757 mm
Basic kW A: 8.02 kW
Additional kW B: 0.76 kW
Additional kW C: 0.75 kW
DRIVE DESIGN EXAMPLE
Open the cover flap and follow step by step the drive design method.
D - d 212 - 95
=
A 757
= 0.15
D. From table G find the arc of contact correction factor G: 0.98
E. Table C
L
gives the belt length correction factor: 0.98
F. Net kW per belt: (8.02 + 0.76 + 0.75) x 0.98 x 0.98 = 9.15
G. Number of belts required:
36
9.15
= 3.93 or 4 belts
Pulley width: (3 x 15) + (2 x 10) = 65 mm
Step 9
From table No. 11 find the:
- minimum allowance on centre distance for installation: 25 mm
- minimum allowance on centre distance for takeup: 40 mm
Arc correction factor G: 0.98
Length correction factor C
L
: 0.98
Net kW per belt: 9.15
Number of belts: 4
Pulley width: 65 mm
Installation allowance: 25 mm
Takeup allowance: 40 mm
THE DRIVE REQUIRES 4 GATES QUAD-POWER II BELTS WITH CROSS-SECTION XPA 2000
TENSIONING
Step 10
Static tension per belt (Table No. 13: M = 0.104)
T s
= 450 x
(2.5 - 0.98)
0.98
x
30
4 x 14.2
+ 0.104 x (14.2)
2
= 390 N
Step 11
A.
Span length t = 757 [1 - 0.125
(
212 - 95
)
2
] = 755 mm
757
B.
Deflection =
755
100
= 7.55 mm
C. Minimum and maximum recommended deflection forces:
(Table No. 13: Y = 20 )
Minimum recommended deflection force =
390 + 20
25
= 16.4 N
Static tension per belt: 390 N
Span length: 755 mm
Deflection: 7.55 mm
Min. deflection force: 16 N
Maximum recommended deflection force =
1.5 x 390 + 20
25
= 24.2 N
Kilowatt rating tables (Step 8)
Section
XPZ-3VX
XPA
XPB-5VX
XPC
SPZ-3V-9J
SPA
Page
46 - 47
48 - 49
50 - 51
52 - 53
54 - 55
65 - 57
Section Page
SPB-SPB PowerBand
®
5V-15J 58 - 59
SPC-SPC
PowerBand ®
8V-25J
8VK
60 - 61
62 - 63
64 - 65
Section
B
C
Z
A
D
Max. deflection force: 24 N
Page
66 - 67
68 - 69
70 - 71
72 - 73
74 - 75
Section
PJ
PL
PM
5M-JB
7M-JB
11M-JB
89
Page
76 - 77
78 - 79
80 - 81
82 - 83
84 - 85
86 - 87
7
USEFUL DATA
EXPLANATION OF SYMBOLS
Physical quantity
Power
Torque
Force
Time
Velocity of rotation
Pulley datum diameter
Shaft centre distance
Belt datum length
Belt speed or velocity
Mass
Belt mass per datum length unit
Belt effective tension
Belt centrifugal tension
FORMULAE
Belt speed
Conversion factor:
Metric units:
Imperial units:
Power
Metric units:
Torque
Metric units:
Belt effective tension
Metric units:
7
90
Belt centrifugal tension
Metric units:
Symbol
V m
A
L
M
T e
T c
P
T
F t n
D or d
Unit
kiloWatt
Newton metre
Newton second rev./min.
millimetre millimetre millimetre metre/second kilogramme gramme/metre
Newton
Newton
1 ft/min.
= 0.00508 m/s
V (m/s) = d x n
19100
V (ft/min.) = 0.262 x d x n
P(kW)
P(kW)
=
=
T e
x V
10
3
T x n
9.55 x 10
3
T(Nm) =
9.55 x 10
3
P n
T e
(N) =
2 x 10
3
T d
T c
(N) =
MV
2
10
3
1 oz
1 lb
1 UK ton
1 UK gal
1 UK pint
1 radian
1 degree
1 HP
1 ft
1 in
1 ft
2
1 in
2
1 ft
3
1 in
3
1 lbf
1 lbf
1 kgf
1 lbf in
CONVERSION TABLE
=
=
=
=
0.454 kgf
4.448 N
9.807 N
0.113 Nm
=
=
=
=
0.3048 m
25.4 mm
0.093 m
2
645.16 mm
2
0.028 m
3
16.387 cm
3
=
=
=
=
=
=
28.35 g
0.454 kg
1.016 ton
4.546 litre
= 0.568 litre
= 57.296 degree
= 0.0175 radian
= 0.746 kW
Abbreviation
mm mm m/s kg g/m
N
N kW
Nm
N s rpm mm
SUPPORT
DESIGNFLEX CALCULATION SOFTWARE
You may calculate your own application by means of one of Gates’ design manuals or by using DesignFlex, a Windows-based multilingual software program. The program is available on CD-ROM (E/20098), but can also be downloaded from Gates’ website at www.gates.com/europe.
The program offers a step-by-step drive calculation procedure for both
V-belts and synchronous belts based on the criteria and/or limitations specified by the user.
DesignFlex runs under Windows 95, 98, 2000, NT or Millennium, requires a
Pentium 133 processor or higher and an 800 x 600 screen resolution or higher. A minimum of 32 MB RAM is recommended for satisfactory calculation speed.
GATES’ APPLICATION ENGINEERS
AT YOUR SERVICE
If your application cannot be designed with the aid of Gates’ design manuals or the DesignFlex software, you can always contact Gates’ application engineers. They are at your service to solve even the most difficult drive design problem.
Gates’ application engineers now use DESIGN IQ, a very powerful software program allowing them to calculate multiple pulley drives for the most diverse complex duty cycles. For more information on this brandnew software possibilities please contact your Gates representative.
ELECTRONIC PRICE LIST
Gates’ electronic price list for industrial Power Transmission products is available on CD-ROM and enables the user to easily select any product from the power transmission range by product number, bar code, description, type, profile and dimension. A full colour photograph and a drawing of the belt profiles complete the information.
The information on the CD-ROM is available in six languages.
GATES LITERATURE
Please consult our web site at www.gates.com/europe for specific and updated information on other Gates industrial belt products and our list of available literature. Industrial Power Transmission brochures and leaflets can be downloaded from the site. Distributors may link up with the Gates European site thus supplying visitors with updated information on the
European Gates organisation.
91
7
ADDRESSES
OPERATIONS
FRANCE
Gates S.A.
Power Transmission Div.
111, rue Francis Garnier
B.P. 37
F - 58027 Nevers - Cedex
Tl : (33) 3 / 86 71 75 00
Fx : (33) 3 / 86 36 62 47
GERMANY
Gates GmbH Aachen
Eisenbahnweg 50
D - 52068 Aachen
Tl : (49) 241 / 5108-0
Fx : (49) 241 / 5108-297
www.gates.com/europe [email protected]
POLAND
Gates Polska Sp. z o.o.
Ul. Jaworzy
µ ska 301
P - 59-220 Legnica
Tl : (48) 76 / 855 10 00
Fx : (48) 76 / 855 10 01
UK
Gates
Power Transmission Ltd
Tinwald Downs Road
Heathhall - Dumfries
DG1 1TS
Tl : (44) 1387 / 24 20 00
Fx : (44) 1387 / 24 20 10
SALES AND
MARKETING FACILITIES
BELGIUM
Gates Europe nv
Dr. Carlierlaan 30
B - 9320 Erembodegem
Tl : (32) 53 / 76 27 11
Fx : (32) 53 / 76 27 13
FRANCE
Gates France S.A.R.L.
B.P. 37
Zone Industrielle
F - 95380 Louvres
Tl : (33) 1 / 34 47 41 41
Fx : (33) 1 / 34 72 60 54
GERMANY
Gates GmbH Langenfeld
Haus Gravener Straße 191-193
D - 40764 Langenfeld
Tl : (49) 2173 / 795-0
Fx : (49) 2173 / 795-150
ITALY
Gates S.R.L.
Via Senigallia 18
(Int. 2 - Blocco A - Edificio 1)
I - 20161 Milano MI
Tl : (39) 02 / 662 16 21
Fx : (39) 02 / 645 86 36
SPAIN
Gates S.A.
Polígono Industrial
Les Malloles
E - 08660 Balsareny
(Barcelona)
Tl : (34) 93 / 877 70 00
Fx : (34) 93 / 877 70 39
All Gates’ European Power Transmission Operations are ISO 9001 and ISO 14001 registered.
Important
Every effort has been made to ensure the accuracy and comprehensiveness of the information included in this catalogue. However Gates cannot be held responsible for errors or omissions and for alterations occurred after release for printing; or if Gates products are used in special or exceptional circumstances without prior consultation with and clearance from a Gates representative.
This issue is released September 2004 and supersedes all previous versions of this design manual. If your drive design manual is more than 2 years old, please consult a Gates representative to check whether you have the latest version.
The manufacturers reserve the right to amend details where necessary.
© Gates Europe nv 2004 Printed in Belgium - 09/04.
92
93
DRIVE DESIGN
1
Select the desired service life range
2
Determine the design power
3
Select the proper V-belt section
4
Determine the speed ratio
5
Choose the pulley datum diameter p. 21 p. 23 p. 23 p. 28 p. 28
6
Calculate the belt speed
7
Select centre distance and V-belt length p. 28 p. 29
8 Determine the number of belts or ribs required
A. Determine the basic kW rating (A).
B. Determine the additional kW rating for speed ratio (B).
C. Determine the additional kW rating for belt life (C).
D. Determine the arc of contact correction factor (G).
E. Determine the belt length correction factor (C
L
).
F. Calculate the net kW per belt or rib.
G. Determine the number of belts or ribs required.
See “Kilowatt rating tables (Step 8)” page 89.
p. 31
9
Provide the minimum installation and takeup allowances p. 31
TENSIONING
10
Determine the required tension per rib/strand or belt
(static tension)
11 p. 33
Determine the minimum and maximum recommended forces to deflect one belt (or one belt with different strands of belts if PowerBand ® , Micro-V ® or Polyflex ® JB™ is used) 1 mm per 100 mm of span length p. 33
12
Check if the belts are properly tensioned p. 34
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Key features
- Increased power capacity
- High transmission efficiency
- Improved belt life
- Cost and space savings
- Maximum load-carrying capacity
