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.

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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