KTR POLY-NORM-M Operating/Mounting Instructions
KTR POLY-NORM-M is a torsionally flexible jaw coupling designed to compensate for shaft misalignment caused by manufacturing inaccuracies, thermal expansion, and other factors. It's used in various applications to connect and transmit power between shafts.
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POLY-NORM®-M
Operating/Assembly instructions
KTR-N
Sheet:
Edition:
49810 EN
1 of 15
5
Please observe protection
note ISO 16016.
Drawn: 2023-01-24 Pz/Kr Replacing: KTR-N dated 2021-03-05
Verified: 2023-01-25 Pz Replaced by:
POLY-NORM®-M
Flexible jaw coupling type AFN
for finish bored, pilot bored and unbored couplings
Type AFN
Operating/Assembly instructions
KTR-N
Sheet:
Edition:
49810 EN
1 of 15
5
Please observe protection
note ISO 16016.
Drawn: 2023-01-24 Pz/Kr Replacing: KTR-N dated 2021-03-05
Verified: 2023-01-25 Pz Replaced by:
POLY-NORM®-M
Flexible jaw coupling type AFN
for finish bored, pilot bored and unbored couplings
Type AFN
POLY-NORM®-M
Operating/Assembly instructions
KTR-N
Sheet:
Edition:
49810 EN
2 of 15
5
Please observe protection
note ISO 16016.
Drawn: 2023-01-24 Pz/Kr Replacing: KTR-N dated 2021-03-05
Verified: 2023-01-25 Pz Replaced by:
POLY-NORM®-M is a torsionally flexible jaw coupling. It is able to compensate for shaft misalignment, for
example caused by manufacturing inaccuracies, thermal expansion, etc.
1 Technical data 3
2 Advice 4
2.1 General advice 4
2.2 Safety and advice symbols 4
2.3 General hazard warnings 4
2.4 Intended use 4
2.5 Coupling selection 5
2.6 Reference to EC Machinery Directive 2006/42/EC 5
3 Storage, transport and packaging 5
3.1 Storage 5
3.2 Transport and packaging 5
4 Assembly 6
4.1 Components of the couplings 6
4.2 Advice on remachining 6
4.3 Assembly of the coupling (general) 7
4.4 Assembly of type AFN 7
4.5 Displacements - alignment of the coupling 9
5 Start-up 10
6 Breakdowns, causes and elimination 11
7 Disposal 12
8 Maintenance and service 13
9 Spares inventory, customer service addresses 15
Table of contents
Operating/Assembly instructions
KTR-N
Sheet:
Edition:
49810 EN
2 of 15
5
Please observe protection
note ISO 16016.
Drawn: 2023-01-24 Pz/Kr Replacing: KTR-N dated 2021-03-05
Verified: 2023-01-25 Pz Replaced by:
POLY-NORM®-M is a torsionally flexible jaw coupling. It is able to compensate for shaft misalignment, for
example caused by manufacturing inaccuracies, thermal expansion, etc.
1 Technical data 3
2 Advice 4
2.1 General advice 4
2.2 Safety and advice symbols 4
2.3 General hazard warnings 4
2.4 Intended use 4
2.5 Coupling selection 5
2.6 Reference to EC Machinery Directive 2006/42/EC 5
3 Storage, transport and packaging 5
3.1 Storage 5
3.2 Transport and packaging 5
4 Assembly 6
4.1 Components of the couplings 6
4.2 Advice on remachining 6
4.3 Assembly of the coupling (general) 7
4.4 Assembly of type AFN 7
4.5 Displacements - alignment of the coupling 9
5 Start-up 10
6 Breakdowns, causes and elimination 11
7 Disposal 12
8 Maintenance and service 13
9 Spares inventory, customer service addresses 15
Table of contents
POLY-NORM®-M
Operating/Assembly instructions
KTR-N
Sheet:
Edition:
49810 EN
3 of 15
5
Please observe protection
note ISO 16016.
Drawn: 2023-01-24 Pz/Kr Replacing: KTR-N dated 2021-03-05
Verified: 2023-01-25 Pz Replaced by:
Illustration 1: POLY-NORM®-M type AFN
Table 1: Dimensions
Size
Dimensions [mm]
Max. finish
bore General
d1 d2 L l1 l2 l3 l4 DH D1 D2 D3 D4 D5 D6 d3 E W
202 350 200 425 195 215 200 218 640 500 552 530 600 360 480 300 12 150
252 355 250 438 208 215 213 218 720 550 635 610 680 460 570 360 12 150
302 380 300 464 203 247 209 255 770 600 682 660 730 510 625 430 13 175
402 480 400 580 224 335 230 350 1000 760 885 860 945 650 800 530 14 250
502 650 500 654 228 407 234 360 1200 1000 1080 1050 1140 830 990 700 19 250
503 650 500 777 228 530 234 505 1200 1000 1075 1340 1140 830 990 700 19 415
703 700 700 845 309 507 315 500 1560 1100 1395 1340 1480 1110 1280 950 19 360
803 1000 800 1040 406 600 416 530 1800 1600 1630 1550 1720 1250 1450 1100 24 390
903 1000 900 982 406 541 412 550 2060 1400 1865 1800 1975 1500 1730 1300 25 390
905 1000 900 1376 406 857 416 920 2060 1650 1865 1800 1975 1500 1730 1300 114 715
Table 2: Technical data
Size Torque [kNm] Max. speed 1)
[rpm]
Tightening torque [Nm] Weight 2) [kg]
TKN TK max. M1 TA1 M2 TA2
202 100 200 600 M24 970 M16 290 430
252 140 280 530 M24 970 M16 290 590
302 200 400 500 M24 970 M16 290 730
402 400 800 380 M30 1950 M16 290 1750
502 650 1300 320 M30 1950 M16 290 2240
503 950 1900 320 M30 1950 M16 290 3090
703 1200 2400 245 M42 3600 M16 290 5150
803 2400 4800 220 M48 5450 M24 970 9300
903 3300 6600 190 M48 5450 M24 970 9800
905 5500 11000 190 M48 5450 M24 970 14800
1) Maximum circumferential speed v = 20 m/s referring to the maximum outside diameter. Higher speed on request.
2) Weights apply for max. bore diameters with feather keyway according to DIN 6885 sheet 1
1 Technical data
Operating/Assembly instructions
KTR-N
Sheet:
Edition:
49810 EN
3 of 15
5
Please observe protection
note ISO 16016.
Drawn: 2023-01-24 Pz/Kr Replacing: KTR-N dated 2021-03-05
Verified: 2023-01-25 Pz Replaced by:
Illustration 1: POLY-NORM®-M type AFN
Table 1: Dimensions
Size
Dimensions [mm]
Max. finish
bore General
d1 d2 L l1 l2 l3 l4 DH D1 D2 D3 D4 D5 D6 d3 E W
202 350 200 425 195 215 200 218 640 500 552 530 600 360 480 300 12 150
252 355 250 438 208 215 213 218 720 550 635 610 680 460 570 360 12 150
302 380 300 464 203 247 209 255 770 600 682 660 730 510 625 430 13 175
402 480 400 580 224 335 230 350 1000 760 885 860 945 650 800 530 14 250
502 650 500 654 228 407 234 360 1200 1000 1080 1050 1140 830 990 700 19 250
503 650 500 777 228 530 234 505 1200 1000 1075 1340 1140 830 990 700 19 415
703 700 700 845 309 507 315 500 1560 1100 1395 1340 1480 1110 1280 950 19 360
803 1000 800 1040 406 600 416 530 1800 1600 1630 1550 1720 1250 1450 1100 24 390
903 1000 900 982 406 541 412 550 2060 1400 1865 1800 1975 1500 1730 1300 25 390
905 1000 900 1376 406 857 416 920 2060 1650 1865 1800 1975 1500 1730 1300 114 715
Table 2: Technical data
Size Torque [kNm] Max. speed 1)
[rpm]
Tightening torque [Nm] Weight 2) [kg]
TKN TK max. M1 TA1 M2 TA2
202 100 200 600 M24 970 M16 290 430
252 140 280 530 M24 970 M16 290 590
302 200 400 500 M24 970 M16 290 730
402 400 800 380 M30 1950 M16 290 1750
502 650 1300 320 M30 1950 M16 290 2240
503 950 1900 320 M30 1950 M16 290 3090
703 1200 2400 245 M42 3600 M16 290 5150
803 2400 4800 220 M48 5450 M24 970 9300
903 3300 6600 190 M48 5450 M24 970 9800
905 5500 11000 190 M48 5450 M24 970 14800
1) Maximum circumferential speed v = 20 m/s referring to the maximum outside diameter. Higher speed on request.
2) Weights apply for max. bore diameters with feather keyway according to DIN 6885 sheet 1
1 Technical data
POLY-NORM®-M
Operating/Assembly instructions
KTR-N
Sheet:
Edition:
49810 EN
4 of 15
5
Please observe protection
note ISO 16016.
Drawn: 2023-01-24 Pz/Kr Replacing: KTR-N dated 2021-03-05
Verified: 2023-01-25 Pz Replaced by:
Please read through these operating/assembly instructions carefully before you start up the coupling.
Please pay special attention to the safety instructions!
The operating/assembly instructions are part of your product. Please store them carefully and close to the
coupling. The copyright for these operating/assembly instructions remains with KTR.STOP
Warning of personal injury
This symbol indicates notes which may contribute to
preventing bodily injuries or serious bodily injuries that
may result in death.!
Warning of product damages This symbol indicates notes which may contribute to
preventing material or machine damage.
General advice This symbol indicates notes which may contribute to
preventing adverse results or conditions.
Warning of hot surfaces
This symbol indicates notes which may contribute to
preventing burns with hot surfaces resulting in light to
serious bodily injuries.STOP
With assembly, operation and maintenance of the coupling it has to be made sure that the
entire drive train is secured against accidental switch-on. You may be seriously hurt by
rotating parts. Make absolutely sure to read through and observe the following safety
indications.
• All operations on and with the coupling have to be performed taking into account "safety first".
• Make sure to switch off the power pack before you perform your work on the coupling.
• Secure the power pack against accidental switch-on, e. g. by providing warning signs at the place of switch-on
or removing the fuse for current supply.
• Do not reach into the operating area of the coupling as long as it is in operation.
• Secure the coupling against accidental contact. Provide for the necessary protection devices and covers.
You may only assemble, operate and maintain the coupling if you
• have carefully read through the operating/assembly instructions and understood them
• are technically qualified and specifically trained (e. g. safety, environment, logistics)
• are authorized by your company
The coupling may only be used in accordance with the technical data (see chapter 1). Unauthorized modifications
on the coupling design are not admissible. We will not assume liability for any damage that may arise. In the
interest of further development we reserve the right for technical modifications.
The POLY-NORM®-M described in here corresponds to the technical status at the time of printing of these
operating/assembly instructions.
2 Advice
2.1 General advice
2.2 Safety and advice symbols
2.3 General hazard warnings
2.4 Intended use
Operating/Assembly instructions
KTR-N
Sheet:
Edition:
49810 EN
4 of 15
5
Please observe protection
note ISO 16016.
Drawn: 2023-01-24 Pz/Kr Replacing: KTR-N dated 2021-03-05
Verified: 2023-01-25 Pz Replaced by:
Please read through these operating/assembly instructions carefully before you start up the coupling.
Please pay special attention to the safety instructions!
The operating/assembly instructions are part of your product. Please store them carefully and close to the
coupling. The copyright for these operating/assembly instructions remains with KTR.STOP
Warning of personal injury
This symbol indicates notes which may contribute to
preventing bodily injuries or serious bodily injuries that
may result in death.!
Warning of product damages This symbol indicates notes which may contribute to
preventing material or machine damage.
General advice This symbol indicates notes which may contribute to
preventing adverse results or conditions.
Warning of hot surfaces
This symbol indicates notes which may contribute to
preventing burns with hot surfaces resulting in light to
serious bodily injuries.STOP
With assembly, operation and maintenance of the coupling it has to be made sure that the
entire drive train is secured against accidental switch-on. You may be seriously hurt by
rotating parts. Make absolutely sure to read through and observe the following safety
indications.
• All operations on and with the coupling have to be performed taking into account "safety first".
• Make sure to switch off the power pack before you perform your work on the coupling.
• Secure the power pack against accidental switch-on, e. g. by providing warning signs at the place of switch-on
or removing the fuse for current supply.
• Do not reach into the operating area of the coupling as long as it is in operation.
• Secure the coupling against accidental contact. Provide for the necessary protection devices and covers.
You may only assemble, operate and maintain the coupling if you
• have carefully read through the operating/assembly instructions and understood them
• are technically qualified and specifically trained (e. g. safety, environment, logistics)
• are authorized by your company
The coupling may only be used in accordance with the technical data (see chapter 1). Unauthorized modifications
on the coupling design are not admissible. We will not assume liability for any damage that may arise. In the
interest of further development we reserve the right for technical modifications.
The POLY-NORM®-M described in here corresponds to the technical status at the time of printing of these
operating/assembly instructions.
2 Advice
2.1 General advice
2.2 Safety and advice symbols
2.3 General hazard warnings
2.4 Intended use
5
6
7
8
9
10
11
12
13
14
15
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Key Features
- Torsionally flexible
- Compensates misalignment
- Various sizes
- Low maintenance
- Easy assembly
- Durable construction
Related manuals
Frequently Answers and Questions
What is the intended use of the KTR POLY-NORM-M coupling?
The KTR POLY-NORM-M coupling is designed to connect and transmit power between shafts while compensating for misalignment. It should only be used according to the technical data provided in the manual.
How do I select the correct size for my application?
The selection of the coupling size depends on the specific application and operating conditions. Refer to the selection instructions (according to DIN 740 part 2) for your specific application.
How do I properly assemble the KTR POLY-NORM-M coupling?
Assembly instructions are provided in the manual and should be followed carefully. Ensure alignment of shafts, proper tightening torques, and correct installation of components for a safe and efficient operation.
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