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High Performance Disc Couplings

High Performance Disc Couplings

Kop-Flex® High Performance or High Speed Disc Couplings are available in four designs to accommodate all operating conditions and applications. In reduced moment with lowest overhung moment, RM provides interlocking (redundant) configuration. RZ allows lowest overhung moment at an economical price. Marine style - allows for installing and removing factory assembled center sections without removing the driving, or driven end, rigid hubs/adapters. MS offers the interlocking flanges, MP is the more economical option. The KS disc coupling is a sister to the Kop-Flex high-performance disc coupling. It is designed to meet API 671. It provides a less expensive alternative for applications with intermediate speed range.

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Features & Benefits:

 

  • All couplings are custom designed to meet the specific requirement of the application and OEM – Engineered drive solutions.
  • Meets API 671.
  • Balanced to the most stringent standards and quality in the Industry.
  • Various standard configurations and sizes available.
  • High Speed, High Power Machines.
  • Peak Torque capacity over 14.6 million lb-in (1647 kN-m).
  • Bore capacity exceeds 19 inches (480 mm).
  • Stainless Steel Koplon™ Coated Flexible Discs for Maximum Life.
  • Unitized disc packs for ease of assembly and removal.
  • Heat Treated Alloy Steel Hubs, Spacers, and Sleeves.
  • RM (Reduced Moment) style has Lowest Moment Available on the Market.
  • Proven experience with application/experience list unmatched by anyone.
  • Options: Electrically insulated, shear section, back up or fail safe gears, various materials, and many more.
Additional Data 

 

RM Series

Size

(1)
Normal
Bore
Capacity
(in)

 (4)
Max.
Continuous
Coupling
Rating
HP/100 RPM
 (4)
Max.
Continuous
Torque
Rating
(in/lbs)
 (5)
Max.
Momentary
Torque
Rating
(in/lbs)
 Maximum
Speed
RPM
 (6)
Total
Weight
(lbs)
 (6)
Total
WR2
(in-lb2)
 (6)
Half
Coupling
C.G.
(in)
 (6) (7)
Torsional
Stiffness
K
(in.-in/rad x 106)
 Spacer Tube/in

K
(lb.-in x 106) rad

 

 Weight
(lbs)

WR2
(lb-in2)
 
103
 1.5
 19
 12000
 19000
 34300
 12.6
 20
 1.74
 0.36
 9.8
 0.23
 0.24
153
 2.0
 48
 30000
 48000
 28600
 19.8
 59.8
 1.83
 0.94
 30.1
 0.32
 0.72
154
 2.0
 72
 47000
 75000
 28600
 23.6
 80
 1.85
 0.99
 30.1
 0.32
 0.72
203
 2.5
 88
 56000
 89000
 23800
 32.6
 149
 2.29
 1.8
 63.7
 0.43
 1.53
204
 2.5
 132
 83000
 132000
 23800
 36.3
 178
 2.31
 1.9
 63.7
 0.43
 1.53
 











253 3.0
 135
 85000
 135000
 19900
 51.5
 355
 2.69
 3
 102
 0.48
 2.43
254
 3.0
 210
 132000
 210000
 19900
 55.5
 388
 2.71
 3.1
 102
 0.48
 2.43
303
 3.5
 219
 138000
 219000
 17100
 78.0
 689
 3.11
 5.7
 219
 0.75
 5.24
304
 3.5
 331
 209000
 332000
 17100
 86.0
 808
 3.14
 6
 219
 0.75
 5.24
353
 4.0
 353
 216000
 343000
 14900
 116
 1370
 3.50
 9.2
 383
 1.00
 9.18













354
 4.0
 517
 326000
 518000
 14900
 129
 1620
 3.53
 10
 383
 1.00
 9.18
355
 4.0
 647
 407000
 647000
 12800
 151
 1960
 3.50
 11
 475
 1.26
 11.4
403
 4.5
 501
 315000
 501000
 13100
 167
 2570
 3.85
 14
 637
 1.33
 15.3
404
 4.5
 750
 473000
 752000
 13100
 185
 3020
 3.89
 15
 637
 1.33
 15.3
405
 4.5
 938
 591000
 940000
 11300
 203
 3350
 3.83
 15
 790
 1.67
 18.9













453
 5.0
 660
 416000
 661000
 11900
 221
 4030
 4.43
 20
 980
 1.67
 23.5
454
 5.0
 1020
 642000
 1021000
 11900
 248
 4760
 4.40
 23
 980
 1.67
 23.5
455
 5.0
 1270
 801000
 1274000
 10100
 260
 5000
 4.37
 23
 1204
 2.08
 28.8
 504 5.5
 1290
 813000
 1293000
 10900
 297
 7090
 4.44
 26
 1300
 1.83
 31.2
505 5.5
 1610
 1016000
 1615000
 10900
 313
 7440
 4.45
 29
 1740
 2.5
 41.6













554
 6.0
 1720
 1082000
 1720000
 9900
 438
 12800
 5.36
 34
 1880
 2.23
 44.9
555
 6.0
 2150
 1354000
 2153000
 9900
 448
 13000
 5.37
 37
 2440
 2.96
 58.4
604
 6.5
 2190
 1379000
 2193000
 9200
 518
 17100
 5.94
 47
 2620
 2.67
 62.7
605
 6.5
 2730
 1724000
 2741000
 9200
 543
 17900
 5.97
 51
 3330
 3.45
 79.6

 

RZ Series

 

Size

(1)
Normal
Bore
Capacity
(in)

 (4)
Max.
Continuous
Coupling
Rating
HP/100 RPM
 (4)
Max.
Continuous
Torque
Rating
(in-lbs)
 (5)
Max.
Momentary
Torque
Rating
(in-lbs)
 Maximum
Speed
RPM
 (6)
Total
Weight
(lbs)
 (6)
Total
WR2
(in-lb2)
 (6)
Half
Coupling
C.G.
(in)
 (6) (7)
Torsional
Stiffness
K
(lb.-in/rad x106)
 Spacer Tube/in
K
(lb-in x 106) rad
 Weight
(lbs)
 WR2
(lb-in2)
103
 1.5
 19
 12000
 19000
 34300
 13.6
 21
 1.51
 0.36
 9.8
 0.23
 0.24
153
 2.0
 48
 30000
 48000
 28600 22.1
 72.7
 1.63
 0.90
 30.1
 0.32
 0.72
154
 2.0
 72
 47000
 75000
 28600
 23.6
 77
 1.57
 0.98
 30.1
 0.32
 0.72
203
 2.5
 88
 56000
 89000
 23800
 34.6
 163
 2.08
 1.7
 63.7
 0.43
 1.53
204
 2.5
 132
 83000
 132000
 23800
 35.3
 167
 2.07
 1.8
 63.7
 0.43
 1.53













253
 3.0
 135
 85000
 135000
 19900
 52.5
 35.4
 2.42
 2.9
 102
 0.48
 2.43
254
 3.0
 210
 132000
 210000
 19900
 53.3
 363
 2.42
 3.0
 102
 0.48
 2.43
303
 3.5
 219
 138000
 219000
 17100
 81.1
 732
 2.84
 5.6
 219
 0.75
 5.24
304
 3.5
 331
 209000
 332000
 17100
 82.5
 755
 2.84
 5.8
 219
 0.75 5.24
353
 4.0
 343
 216000
 343000
 14900
 121
 1460
 3.19
 8.9
 383
 1.00
 9.18










     
354
 4.0
 517
 326000
 518000
 14900
 124
 1500
 3.19
 9.2
 383
 1.00
 9.18
355
 4
 647
 407000
 647000
 12800
 129
 1540
 3.07
 9.7
 475
 1.26
  11.40
403
 4.5
 501
 315000
 501000
 13100
 174
 2720
 3.48
 13
 637
 1.33
 15.3
404
 4.5
 750
 473000
 752000
 13100
 178
 2790
 3.48
 14
 637
 1.33
 15.3
405
 4.5
 938
 591000
 940000
 11300
 186
 2870
 3.36
 15
 790 1.67
 18.9










     
453
 5.0
 660
 416000
 661000
 11900
 229
 4260
 4.07
 19
 980 1.67
 23.5
454
 5.0
 1020
 642000
 1021000
 11900
 237
 4330
 4.06
 20
 980
 1.67
 23.5
455
 5
 1270
 801000
 1274000
 10100
 244
 4500
 3.97 21
 1204
 2.08
 28.8
504
 5.5
 1290
 813000
 1293000
 10900
 283
 6530
 3.95 25
 1300
 1.83
 31.2
505
 5.5
 1610
 1016000
 1615000
 10900
 301
 6950
 3.95
 28 1740
 2.50
 41.6










     
554
 6.0
 1720
 1082000
 1720000
 9900
 403
 11000
 4.79
 33
 1880
 2.23
 44.9
555
 6.0
 2150
 1354000
 2153000
 9900
 424
 11600
 4.80
 36
 2440
 2.96
 58.4
604
 6.5
 2190
 1379000
 2193000
 9200
 491
 15600
 5.41
 46
 2620 2.67
 62.7
605
 6.5
 2730
 1724000
 2741000
 9200
 516
 16400
 5.41
 49
 3330
 3.45
 79.6
704
 8.0
 4130
 2603000
 4139000
 7500
 880
 42100
 6.61
 93
 6100
 4.05
 146
 











705
 8.0
 5160
 3253000
 5172000
 7500
 920
 44400
 6.62
 99
 7790
 5.28
 187
804
 9.0
 6120
 3852000
 6125000
 6600
 1250
 76000
 7.18
 130
 10100
 5.28
 241

MS Series

 

Size

(1)
Normal
Bore
Capacity
(in)

 (4)
Max.
Continuous
Coupling
Rating
HP/100 RPM
 (4)
Max.
Continuous
Torque
Rating
(in-lbs)
 (5)
Max.
Momentary
Torque Rating
(in-lbs)
 Maximum
Speed
RPM
 (6)
Total
Weight
(lbs)
 (6)
Total
WR2
(in-lb2)
 (6)
Half
Coupling
C.G.
(in)
 (6) (7)
Torsional
Stiffness
K
(lb.-in/rad x106)
 Spacer Tube/in
K
(lb-in x 106) rad
 Weight
(lbs)
 WR2
(lb-in2)
103
 2.5
 19
 12000
 19000
 27700
 18.8
 52
 0.13
 0.52
 12.1
 0.21
 0.29
153
 3.5
 48
 30000
 48000
 23100
 32.9
 150
 0.18
 1.4
 41.5
 0.38
 0.99
154
 3.5
 72
 47000
 75000
 23100
 34.7
 134
 0.18
 1.7
 41.5
 0.38
 0.99
203
 4.0
 88
 56000
 89000
 20200
 47.2
 291
 0.36
 2.4
 71.3
 0.43
 1.71
204
 4.0
 132
 83000
 132000
 20200
 47.5
 293
 0.36
 2.6
 71.3
 0.43
 1.71













253
 5.0
 135
 85000
 135000
 16900
 75.3
 669
 0.41
 4.3
 129
 0.55
 3.10
254
 5.0
 210
 132000
 210000
 16900
 76.2
 678
 0.41
 4.8
 129
 0.55
 3.10
303
 6.0
 219
 138000
 219000
 14800
 110
 678
 0.46
 8.0
 252
 0.77
 6.04
304
 6.0
 331
 209000
 332000
 14800
 112
 1310
 0.45
 8.9
 252
 0.77
 6.04
353
 6.5
 343
 216000
 343000
 12800
 164
 2590
 0.44
 13
 458
 1.06
 11.0










     
354
 6.5
 517
 326000
 518000
 12800
 167
 2620
 0.42
 15
 458
 1.06
 11.0
355
 6.5
 647
 407000
 647000
 12800
 166
 2570
 0.37
 15
 536
 1.25
 12.8
403
 7.5
 501
 315000
 501000
 11300
 235
 4810
 0.40
 19
 769
 1.41
 18.4
404
 7.5
 750
 473000
 752000
 11300
 238
 4800
 0.39
 23
 769
 1.41
 18.4
405
 7.5
 938
 591000
 940000
 11300
 235
 4720
 0.34
 28
 769
 1.40
 18.4










     
453
 8.5
 660
 416000
 661000
 10100
 317
 7960
 0.58
 27
 1190
 1.78
 28.5
454
 8.5
 1020
 642000
 1021000
 10100
 322
 8080
 0.56
 33
 1190
 1.78
 28.5
455
 8.5
 1270
 801000
 1274000
 10100
 336
 8450
 0.47
 22
 1190
 1.80
 28.5
504
 9.0
 1290
 813000
 1293000
 9400
 399
 11600
 0.76
 37
 1560
 1.94
 37.2
505
 9.0
 1610
 1016000
 1615000
 9400
 407
 11500
 0.71
 41
 1560
 1.94
 37.2










     
554
 10.0
 1720
 1082000
 1720000
 8400
 552
 20200
 0.66
 49
 2250
 2.37
 53.9
555
 10.0
 2150
 1354000
 2153000
 8400
 564
 20100
 0.61
 54
 2250
 2.37
 53.9
604
 11.0
 2190
 1379000
 2193000
 7900
 668
 28000
 0.83
 72
 3160
 2.84
 75.6
605
 11.0
 2730
 1724000
 2741000
 7900
 683
 27900
 0.78
 77
 3160
 2.84
 75.6

 

MP Series

 

Size

(1)
Normal
Bore
Capacity
(in)

 (4)
Max.
Continuous
Coupling
Rating
HP/100 RPM
 (4)
Max.
Continuous
Torque
Rating
(in-lbs)
 (5)
Max.
Momentary
Torque
Rating
(in-lbs)
 Maximum
Speed
RPM
 (6)
Total
Weight
(lbs)
 (6)
Total
WR2
(in-lb2)
 (6)
Half
Coupling
C.G.
(in)
 (6) (7)
Torsional
Stiffness
K
(lb.-in/rad x106)
 Spacer Tube/in
K
(lb-in x 106) rad
 Weight
(lbs)
 WR2
(lb-in2)
103
 2.5
 19
 12000
 19000
 27700
 18.5
 52
 0.13
 -0.04
 12.1
 0.21
 0.29
153
 3.5
 48
 30000
 48000
 23100
 33.3
 154
 0.18
 0.01
 41.5
 0.38
 0.99
154
 3.5
 72
 47000
 75000
 23100
 34.3
 156
 0.18
 -0.01 41.5
 0.38
 0.99
203
 4.0
 88
 56000
 89000
 20200
 47.8
 300 0.17
 2.3
 71.3
 0.43
 1.71
204
 4.0
 132
 83000
 132000
 20200
 48.5
 304 0.14
 2.6
 71.3
 0.43
 1.71













253
 5.0
 135
 85000
 135000
 16900
 74.6
 669
 0.28
 4.3
 129
 0.55
 3.10
254
 5.0
 210
 132000
 210000
 16900
 75.5
 679
 0.25
 4.7
 129
 0.55
 3.10
303
 6.0
 219
 138000
 219000
 14800
 109
 1290 0.31
 7.9
 252
 0.77
 6.04
304
 6.0
 331
 209000
 332000
 14800
 111
 1320
 0.28
 8.8
 252
 0.77
 6.04
353
 6.5
 343
 216000
 343000
 12800
 163
 2590
 0.26
 13
 458
 1.06
 11.0










     
354
 6.5
 517
 326000
 518000
 12800
 166
 2640
 0.22
 14
 458
 1.06
 11.0
355
 6.5
 647
 407000
 647000
 12800
 169
 2670
 0.16
 15
 458 1.06
 11.0
403
 7.5
 501
 315000
 501000
 11300
 233
 4730 0.23
 19
 769
 1.41
 18.4
404
 7.5
 750
 473000
 752000
 11300
 236
 4800
 0.19
 21
 769
 1.41
 18.4
405
 7.5
 938
 591000
 940000
 11300
 240
 4840
 0.12
 24
 769
 1.41
 18.4










     
453
 8.5
 660
 416000
 661000
 10100
 314
 7940
 0.44
 27
 1190
 1.78
 28.5
454
 8.5
 1020
 642000
 1021000
 10100
 318
 8050
 0.40
 31
 1190
 1.78
 28.5
455
 8.5
 1270
 801000
 1274000
 10100
 320
 8050
 0.35
 29
 1190
 1.78
 28.5
504
 9.0
 1290
 813000
 1293000
 9400
 392
 11500
 0.56
 37
 1560
 1.94
 37.2
505
 9.0
 1610
 1016000
 1615000
 9400
 399 11700
 0.50
 40
 1560
 1.94
 37.2










     
554
 10.0
 1720
 1082000
 1720000
 8400
 554
 20100
 0.41
 49
 2250
 2.37
 53.9
555
 10.0
 2150
 1354000
 2153000
 8400
 553
 20500
 0.35
 53
 2250
 2.37
 53.9
604
 11.0
 2190
 1379000
 2193000
 7900
 655
 27700
 0.62
 70
 3160
 2.84
 75.6
605
 11.0
 2730
 1724000
 2741000
 7900
 666
 28200
 0.55
 76
 3160
 2.84
 75.6
655 12.0 3640 2293000 3656000 7000 877 44000 0.33 82 5035 3.60 121 


 

 






704 13.0 4130 2603000 4139000 6500 1130 69400 0.65 150 7120 4.19 171
705 13.0 5160 3253000 5172000 6500 1150 71100 0.57 160 7120 4.19 171
755 14.0 5810 3663000 5824000 6300 1320 95300 0.46 206 10120 5.10 242
804 14.5 6120 3852000 6125000 6100 1590 140000 0.60 210 11100 5.16 266
805 14.5 7640 4814000 7654000 5900 1650 145000 0.42 250 13443 6.33 322













905 15.0 10330 6516000 10360000 5200 2050 185000 0.76 300 30193 8.64 484
(4) 1006 18.0 16440 10361000 18240000 4700 3760 501700 0.03 595 36055 11.0 863
(4) 1106 20.0 23800 15000000 26400000 3000 4950 795000 1.07 830 63830 17.0 1530

 

KS Series

 

Size
 Max.1
Continuous
Rating
HP/100
RPM		 Max.1
Torque Rating
 Maximum
Speed
RPM
  Max.
Bore
(in)		 Total2
Weight
(lbs)
 Total2
WR2
(in-lb2)
 Total
Stiffness
K
(lb.-in/rad x 104)
 Spacer Tube/in
 Size 
 Continuous
(in-lb)		 Peak
(in-lb) 		 K
(lb-in/rad x 104)
 Weight
(lbs)
 WR2
(lb-in)
103 9.5 6000 8000 14200 2.88 22.0 61 0.3 11.2 .24 .27 103
153 32.4 20400 27200 12500 3.88 41.1 187 1.1 33.4 .40 .80 153
204 85.7 54000 72000 11100 4.63 69.1 420 2.8 111 .80 2.66 204
 254 124 78000 104000 9900 5.50 99.8 893 4.2 180 .78 4.30 254
304 212 133500 178000 8700 6.50 152 1770 8.0 336 1.17 8.06 304













354 357 225000 300000 7500 7.50 240 3730 14 709 1.96 17.0 354
404 512 322500 430000 6600 9.00 344 6830 21 1020 2.21 24.3 404
454 607 383000 510000 6000 9.75 455 11400 27 1550 2.54 37.0 454
 504 857 540000 720000 5600 10.75 576 16600 38 2650 3.67 62.6 504
554 1200 758000 1010000 4800 12.00 792 28400 50 3120 3.89 74.7 554













604 1570 990000 1320000 4600 13.00 992 40700 69 4800 5.21 115 604
705 3590 2265000 3020000 3860 15.75 1690 102000 160 12700 9.43 304 705
805 5500 3465000 4620000 3450 18.00 2440 18500 240 21200 12.6 507 805
905 6190 3900000 5200000 3100 20.00 3180 304000 300 27500 11.7 658 905

 

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