KTR POLY-NORM Operating/Mounting Instructions
KTR POLY-NORM is a fail-safe, torsionally flexible jaw coupling designed for various industrial applications. It compensates for shaft misalignment caused by manufacturing inaccuracies, thermal expansion, and other factors. POLY-NORM is available with brake drum or brake disk options, providing versatility and adaptability to diverse machinery setups. It is suitable for use with finish bored, pilot bored, and unbored couplings, offering flexibility in installation and customization.
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POLY-NORM®
Operating/Assembly instructions
Type BTA, BT, SBA and SB
KTR-N
Sheet:
Edition:
49511 EN
1 of 16
5
Please observe protection
note ISO 16016.
Drawn: 2016-06-15 Pz/At Replacing: KTR-N dated 2011-11-24
Verified: 2016-12-23 Pz Replaced by:
POLY-NORM®
Flexible jaw-type couplings
ADR-BTA, AR-BTA,
ADR-BT, AR-BT
ADR-SBA, AR-SBA,
ADR-SB and AR-SB
for finish bored, pilot bored
and unbored couplings
Type ADR-BTA, AR-BTA, ADR-BT and AR-BT
Type ADR-SBA, AR-SBA, ADR-SB, and AR-SB
Operating/Assembly instructions
Type BTA, BT, SBA and SB
KTR-N
Sheet:
Edition:
49511 EN
1 of 16
5
Please observe protection
note ISO 16016.
Drawn: 2016-06-15 Pz/At Replacing: KTR-N dated 2011-11-24
Verified: 2016-12-23 Pz Replaced by:
POLY-NORM®
Flexible jaw-type couplings
ADR-BTA, AR-BTA,
ADR-BT, AR-BT
ADR-SBA, AR-SBA,
ADR-SB and AR-SB
for finish bored, pilot bored
and unbored couplings
Type ADR-BTA, AR-BTA, ADR-BT and AR-BT
Type ADR-SBA, AR-SBA, ADR-SB, and AR-SB
POLY-NORM®
Operating/Assembly instructions
Type BTA, BT, SBA and SB
KTR-N
Sheet:
Edition:
49511 EN
2 of 16
5
Please observe protection
note ISO 16016.
Drawn: 2016-06-15 Pz/At Replacing: KTR-N dated 2011-11-24
Verified: 2016-12-23 Pz Replaced by:
POLY-NORM® BTA, BT, SBA and SB is a fail-safe, torsionally flexible jaw coupling with brake drum or
brake disk, respectively. It is able to compensate for shaft misalignment, for example caused by
manufacturing inaccuracies, thermal expansion, etc.
1 Technical data 3
2 Advice 7
2.1 General advice 7
2.2 Safety and advice symbols 7
2.3 General hazard warnings 7
2.4 Intended use 8
2.5 Coupling selection 8
2.6 Reference to EC Machinery Directive 2006/42/EC 8
3 Storage, transport and packaging 9
3.1 Storage 9
3.2 Transport and packaging 9
4 Assembly 9
4.1 Components of the coupling 9
4.2 Advice for finish bore 11
4.3 Assembly of the coupling 12
4.4 Displacements - alignment of the coupling 14
5 Disposal 15
6 Maintenance and service 15
7 Spares inventory, customer service addresses 16
8 Advice for the use in hazardous locations according to directive 2014/34/EU 16
Table of contents
Operating/Assembly instructions
Type BTA, BT, SBA and SB
KTR-N
Sheet:
Edition:
49511 EN
2 of 16
5
Please observe protection
note ISO 16016.
Drawn: 2016-06-15 Pz/At Replacing: KTR-N dated 2011-11-24
Verified: 2016-12-23 Pz Replaced by:
POLY-NORM® BTA, BT, SBA and SB is a fail-safe, torsionally flexible jaw coupling with brake drum or
brake disk, respectively. It is able to compensate for shaft misalignment, for example caused by
manufacturing inaccuracies, thermal expansion, etc.
1 Technical data 3
2 Advice 7
2.1 General advice 7
2.2 Safety and advice symbols 7
2.3 General hazard warnings 7
2.4 Intended use 8
2.5 Coupling selection 8
2.6 Reference to EC Machinery Directive 2006/42/EC 8
3 Storage, transport and packaging 9
3.1 Storage 9
3.2 Transport and packaging 9
4 Assembly 9
4.1 Components of the coupling 9
4.2 Advice for finish bore 11
4.3 Assembly of the coupling 12
4.4 Displacements - alignment of the coupling 14
5 Disposal 15
6 Maintenance and service 15
7 Spares inventory, customer service addresses 16
8 Advice for the use in hazardous locations according to directive 2014/34/EU 16
Table of contents
POLY-NORM®
Operating/Assembly instructions
Type BTA, BT, SBA and SB
KTR-N
Sheet:
Edition:
49511 EN
3 of 16
5
Please observe protection
note ISO 16016.
Drawn: 2016-06-15 Pz/At Replacing: KTR-N dated 2011-11-24
Verified: 2016-12-23 Pz Replaced by:
Types ADR-BTA and ADR-SBA
Illustration 1: POLY-NORM® ADR-BTA Illustration 2: POLY-NORM® ADR-SBA
Table 1: Dimensions of types ADR-BTA and ADR-SBA
Size
Elastomer ring
Torque 1)
[Nm]
Dimensions 3) [mm] Cap screws
DIN EN ISO 4762 - 12.9
Max. finish bore 2) General
L l1; l2 s DH D1 D2 D3 z M TA
[Nm]TKN TK max. d2 d3
38 90 180 34 38 80 38 4 87 48 61 75 5 M6 10
42 150 300 38 42 88 42 4 96 54 68 82 5 M8 25
48 220 440 44 48 101 48 5 106 62 77 92 6 M8 25
55 300 600 50 55 115 55 5 118 72 88 104 6 M8 25
60 410 820 56 60 125 60 5 129 80 96 114 6 M8 25
65 550 1100 60 65 135 65 5 140 86 104 122 6 M10 49
75 850 1700 68 75 155 75 5 158 98 121 140 6 M10 49
85 1350 2700 78 85 175 85 5 182 112 137 160 6 M12 86
90 2000 4000 85 90 185 90 5 200 122 146 174 6 M16 210
100 2900 5800 95 100 206 100 6 224 136 164 195 6 M16 210
110 3900 7800 105 55 - 110 226 110 6 250 150 184 218 8 M16 210
125 5500 11000 115 55 - 125 256 125 6 280 168 208 245 8 M20 410
140 7200 14400 55 - 135 65 - 140 286 140 6 315 195 233 276 8 M20 410
160 10000 20000 65 - 155 75 - 160 326 160 6 350 225 263 308 9 M20 410
180 13400 26800 65 - 175 75 - 180 366 180 6 400 255 298 349 10 M20 410
1) Standard material Perbunan (NBR) 78 Shore A
2) Bore tolerance H7 with feather keyway DIN 6885 sheet 1 [JS9] and setscrew
3) Dimensions of brake drum (BTA) and brake disk (SBA) see table 3 and 4.
1 Technical data
Operating/Assembly instructions
Type BTA, BT, SBA and SB
KTR-N
Sheet:
Edition:
49511 EN
3 of 16
5
Please observe protection
note ISO 16016.
Drawn: 2016-06-15 Pz/At Replacing: KTR-N dated 2011-11-24
Verified: 2016-12-23 Pz Replaced by:
Types ADR-BTA and ADR-SBA
Illustration 1: POLY-NORM® ADR-BTA Illustration 2: POLY-NORM® ADR-SBA
Table 1: Dimensions of types ADR-BTA and ADR-SBA
Size
Elastomer ring
Torque 1)
[Nm]
Dimensions 3) [mm] Cap screws
DIN EN ISO 4762 - 12.9
Max. finish bore 2) General
L l1; l2 s DH D1 D2 D3 z M TA
[Nm]TKN TK max. d2 d3
38 90 180 34 38 80 38 4 87 48 61 75 5 M6 10
42 150 300 38 42 88 42 4 96 54 68 82 5 M8 25
48 220 440 44 48 101 48 5 106 62 77 92 6 M8 25
55 300 600 50 55 115 55 5 118 72 88 104 6 M8 25
60 410 820 56 60 125 60 5 129 80 96 114 6 M8 25
65 550 1100 60 65 135 65 5 140 86 104 122 6 M10 49
75 850 1700 68 75 155 75 5 158 98 121 140 6 M10 49
85 1350 2700 78 85 175 85 5 182 112 137 160 6 M12 86
90 2000 4000 85 90 185 90 5 200 122 146 174 6 M16 210
100 2900 5800 95 100 206 100 6 224 136 164 195 6 M16 210
110 3900 7800 105 55 - 110 226 110 6 250 150 184 218 8 M16 210
125 5500 11000 115 55 - 125 256 125 6 280 168 208 245 8 M20 410
140 7200 14400 55 - 135 65 - 140 286 140 6 315 195 233 276 8 M20 410
160 10000 20000 65 - 155 75 - 160 326 160 6 350 225 263 308 9 M20 410
180 13400 26800 65 - 175 75 - 180 366 180 6 400 255 298 349 10 M20 410
1) Standard material Perbunan (NBR) 78 Shore A
2) Bore tolerance H7 with feather keyway DIN 6885 sheet 1 [JS9] and setscrew
3) Dimensions of brake drum (BTA) and brake disk (SBA) see table 3 and 4.
1 Technical data
POLY-NORM®
Operating/Assembly instructions
Type BTA, BT, SBA and SB
KTR-N
Sheet:
Edition:
49511 EN
4 of 16
5
Please observe protection
note ISO 16016.
Drawn: 2016-06-15 Pz/At Replacing: KTR-N dated 2011-11-24
Verified: 2016-12-23 Pz Replaced by:
Types AR-BTA and AR-SBA
Illustration 3: POLY-NORM® AR-BTA Illustration 4: POLY-NORM® AR-SBA
Table 2: Dimensions of types AR-BTA and AR-SBA
Size
Elastomer ring
Torque 1) [Nm]
Dimensions [mm] Cap screws
DIN EN ISO 4762 - 12.9Max. finish bore 2) General
TKN TK max. d1 d3 L l1; l2 s DH D D2 D3 z M TA [Nm]
38 90 180 40 38 80 38 4 87 62 61 75 5 M6 10
42 150 300 45 42 88 42 4 96 69 68 82 5 M8 25
48 220 440 50 48 101 48 5 106 78 77 92 6 M8 25
55 300 600 60 55 115 55 5 118 90 88 104 6 M8 25
60 410 820 65 60 125 60 5 129 97 96 114 6 M8 25
65 550 1100 70 65 135 65 5 140 105 104 122 6 M10 49
75 850 1700 80 75 155 75 5 158 123 121 140 6 M10 49
85 1350 2700 90 85 175 85 5 182 139 137 160 6 M12 86
90 2000 4000 95 90 185 90 5 200 148 146 174 6 M16 210
100 2900 5800 110 100 206 100 6 224 165 164 195 6 M16 210
110 3900 7800 50 - 120 55 - 110 226 110 6 250 185 184 218 8 M16 210
125 5500 11000 55 - 140 55 - 125 256 125 6 280 210 208 245 8 M20 410
140 7200 14400 65 - 155 65 - 140 286 140 6 315 235 233 276 8 M20 410
160 10000 20000 75 - 175 75 - 160 326 160 6 350 265 263 308 9 M20 410
180 13400 26800 75 - 200 75 - 180 366 180 6 400 300 298 349 10 M20 410
1) Standard material Perbunan (NBR) 78 Shore A
2) Bore tolerance H7 with feather keyway DIN 6885 sheet 1 [JS9] and setscrew
Table 3: Dimensions of BTA
Coupling size 38 42 48 55 60 65 75 85 90 100 110 125 140 160 180
Dimension C with
brake drum
ØDB x B
160 x 60 4
200 x 75 9 8 4
250 x 95 17 16 20 7 3 0
315 x 118 25 21 16 12 9 2.5 -3.5
400 x 150 34 28 25 22 15.5 9.5 9 3
500 x 190 18 12 -2
630 x 236 20 13 -4
710 x 265 24 7 -11
Table 4: Dimensions of SBA
Coupling size 38 42 48 55 60 65 75 85 90 100 110 125 140 160 180
Dimension N with
brake disk
ØA x Gs
200 x 12.5 13.75
250 x 12.5 13.75 14.75 18.75
315 x 16 13 17 22 26 29 35.5
400 x 16 17 22 26 29 35.5 41.5 42 48
500 x 16 22 26 29 35.5 41.5 42 48 54 64
630 x 20 46 52 62 69 86
710 x 20 46 52 62 69 86 104
800 x 25 43.5 49.5 59.5 66.5 83.5 101.5
900 x 25 49.5 59.5 66.5 83.5 101.5
1 Technical data
Operating/Assembly instructions
Type BTA, BT, SBA and SB
KTR-N
Sheet:
Edition:
49511 EN
4 of 16
5
Please observe protection
note ISO 16016.
Drawn: 2016-06-15 Pz/At Replacing: KTR-N dated 2011-11-24
Verified: 2016-12-23 Pz Replaced by:
Types AR-BTA and AR-SBA
Illustration 3: POLY-NORM® AR-BTA Illustration 4: POLY-NORM® AR-SBA
Table 2: Dimensions of types AR-BTA and AR-SBA
Size
Elastomer ring
Torque 1) [Nm]
Dimensions [mm] Cap screws
DIN EN ISO 4762 - 12.9Max. finish bore 2) General
TKN TK max. d1 d3 L l1; l2 s DH D D2 D3 z M TA [Nm]
38 90 180 40 38 80 38 4 87 62 61 75 5 M6 10
42 150 300 45 42 88 42 4 96 69 68 82 5 M8 25
48 220 440 50 48 101 48 5 106 78 77 92 6 M8 25
55 300 600 60 55 115 55 5 118 90 88 104 6 M8 25
60 410 820 65 60 125 60 5 129 97 96 114 6 M8 25
65 550 1100 70 65 135 65 5 140 105 104 122 6 M10 49
75 850 1700 80 75 155 75 5 158 123 121 140 6 M10 49
85 1350 2700 90 85 175 85 5 182 139 137 160 6 M12 86
90 2000 4000 95 90 185 90 5 200 148 146 174 6 M16 210
100 2900 5800 110 100 206 100 6 224 165 164 195 6 M16 210
110 3900 7800 50 - 120 55 - 110 226 110 6 250 185 184 218 8 M16 210
125 5500 11000 55 - 140 55 - 125 256 125 6 280 210 208 245 8 M20 410
140 7200 14400 65 - 155 65 - 140 286 140 6 315 235 233 276 8 M20 410
160 10000 20000 75 - 175 75 - 160 326 160 6 350 265 263 308 9 M20 410
180 13400 26800 75 - 200 75 - 180 366 180 6 400 300 298 349 10 M20 410
1) Standard material Perbunan (NBR) 78 Shore A
2) Bore tolerance H7 with feather keyway DIN 6885 sheet 1 [JS9] and setscrew
Table 3: Dimensions of BTA
Coupling size 38 42 48 55 60 65 75 85 90 100 110 125 140 160 180
Dimension C with
brake drum
ØDB x B
160 x 60 4
200 x 75 9 8 4
250 x 95 17 16 20 7 3 0
315 x 118 25 21 16 12 9 2.5 -3.5
400 x 150 34 28 25 22 15.5 9.5 9 3
500 x 190 18 12 -2
630 x 236 20 13 -4
710 x 265 24 7 -11
Table 4: Dimensions of SBA
Coupling size 38 42 48 55 60 65 75 85 90 100 110 125 140 160 180
Dimension N with
brake disk
ØA x Gs
200 x 12.5 13.75
250 x 12.5 13.75 14.75 18.75
315 x 16 13 17 22 26 29 35.5
400 x 16 17 22 26 29 35.5 41.5 42 48
500 x 16 22 26 29 35.5 41.5 42 48 54 64
630 x 20 46 52 62 69 86
710 x 20 46 52 62 69 86 104
800 x 25 43.5 49.5 59.5 66.5 83.5 101.5
900 x 25 49.5 59.5 66.5 83.5 101.5
1 Technical data
5
6
7
8
9
10
11
12
13
14
15
16
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Key Features
- Fail-safe design
- Torsionally flexible
- Shaft misalignment compensation
- Brake drum or brake disk options
- Finish bored, pilot bored, and unbored coupling compatibility
- Modular construction
- Heavy-duty construction
- Variety of sizes and torque ratings
- Low maintenance
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Frequently Answers and Questions
What is the intended use of the KTR POLY-NORM coupling?
The KTR POLY-NORM coupling is designed to transmit torque between shafts while compensating for misalignment. It is suitable for various industrial applications, including those with finish bored, pilot bored, or unbored couplings. The coupling can be equipped with a brake drum or brake disk to suit specific needs.
What types of shaft misalignment can the KTR POLY-NORM coupling compensate for?
The KTR POLY-NORM coupling can compensate for radial, angular, and axial misalignment. It is designed to handle misalignment caused by manufacturing inaccuracies, thermal expansion, shaft deflection, or other factors.
What are the advantages of using a KTR POLY-NORM coupling with a brake drum or brake disk?
The brake drum or brake disk option provides additional functionality, allowing for controlled stopping or braking of the connected machinery. This feature is beneficial in applications where precise control over motion is required.
How do I determine the correct size and torque rating for a KTR POLY-NORM coupling?
The correct size and torque rating are determined based on the specific application requirements. The manual provides detailed technical data and selection guidelines to assist in this process. It is recommended to consult the manual to ensure a proper selection.
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