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Nuteck Couplings ISO Logo

Pin Bush Couplings

The Pin Bush Coupling is a flexible power transmission solution designed to accommodate misalignment and dampen vibrations. Constructed from high-grade cast iron with resilient rubber bushes, it ensures smooth torque transmission with minimal backlash.

Curve Pin Bush Couplings
Curve Pin Bush Couplings

Flexible couplings are designed to transmit torque between two shafts and are especially effective in applications where slight shaft misalignment cannot be avoided. The Bush Type Flexible Coupling, designed as a cushioned drive system, transmits torque to the machine's input shaft through high-tensile steel bolts. Specially engineered rubber bushes are used to absorb shock loads, dampen torsional vibrations, and compensate for minor misalignments.

Advantages
Material Specifications
HUB CAST IRON (CI) DIN 1693 GG 20
HUB CAST IRON (CI) DIN 1693 GG 25  
BUSH 800 Shore A NATURAL RUBBER (NR) ASTM D2000 810  
COUPLING PIN STEEL C40 (ST) EN/DIN 10263 - 2  
BUSH 920 Shore A NATURAL RUBBER (NR) ASTM D2000 910 TORQUE 1.6 TIMES OF STANDARD
BUSH 920 Shore A POLYURETHANE (PU)   TORQUE 1.8 TIMES OF STANDARD
BUSH 980 Shore A POLYURETHANE (PU)   TORQUE 2.5 TIMES OF STANDARD
NU-TECK Straight Pin Bush Coupling

Curve Pin Bush Couplings

Size Rated
Torque
(Nm)
KW
Rating at
100 rpm
Max.
Speed
RPM
BORE
Min.
BORE
Max.
A B C F G No.
of
PINS
Weight
in
Kgs.
M.I
(Wr²) in (kgm²)
NPB-1 77 0.81 6100 13 30 95 79 38 44 3 3 1.7 0.0015
NPB-2 310 3.25 5100 13 35 114 99 48 51 3 4 3 0.0038
NPB-3 516 5.4 4400 16 45 130 105 51 67 3 6 4.3 0.0069
NPB-4 621 6.5 3600 16 50 160 107 51 75 5 4 8.7 0.024
NPB-5 A 0.024 8.7 3000 20 70 191 125 60 105 5 4 13.6 0.051
NPB-5 B 1241 13 3000 20 70 191 125 60 105 5 6 13.6 0.052
NPB-6 1241 13 2800 20 70 200 125 60 105 5 6 14.6 0.061
NPB-7 1662 17.4 2600 25 80 225 157 76 115 5 6 20.6 0.102
NPB-8 A 2359 24.7 2300 45 100 254 183 89 140 5 8 30 0.181
NPB-8 B 2932 30.7 2300 45 100 254 183 89 140 5 10 30 0.182
NPB-8 C 3533 37 2300 45 100 254 183 89 140 5 12 30 0.182
NPB-9 4154 43.5 1950 55 120 290 235 115 175 5 12 50 0.364
NPB-10 5195 54.4 1900 55 125 300 235 115 185 5 14 60 0.495
NPB-11 5816 60.9 1850 60 135 310 255 125 200 5 16 70.2 0.614
NPB-12 7268 76.1 1650 60 138 340 265 130 205 5 18 81.5 0.836
NPB-13 8729 91.4 1590 65 142 360 276 135 212 6 12 107 1.379
NPB-14 9932 104 1470 70 152 390 316 155 225 6 13 134 1.956
NPB-15 13274 139 1400 80 162 410 336 165 240 6 15 154 2.459
NPB-16 14420 151 1300 90 175 440 366 180 255 6 16 186 3.32
NPB-17 18050 181 1200 100 185 480 386 190 270 6 17 233 5.107
NPB-18 23780 249 1080 110 195 530 406 200 285 6 20 280 7.436
NPB-19 35100 367.3 950 120 220 580 426 210 315 6 24 357 11.05
NPB-20 41600 435.4 900 140 240 630 532 260 360 12 14 576 22.05
NPB-21 58500 612.3 800 140 260 710 572 280 390 12 15 748 35.2
NPB-22 87750 918.4 700 180 290 800 612 300 430 12 15 993 61.8
NPB-23 111800 1170.1 625 200 325 900 652 320 480 14 12 1485 124.6
NPB-24 197600 2068.2 575 230 350 1000 714 350 540 14 16 1937 195.5
NU-TECK Curve Pin Bush Coupling

Curve Curve Pin Bush Couplings

Size Rated
Torque
(Nm)
KW
Rating at
100 rpm
Max.
Speed
RPM
BORE
Min.
BORE
Max.
ØD1
BORE
Max.
ØD2
A B C F1 F2 G No.
of
PINS
Weight
in
Kgs.
M.I
(Wr²) in
(kgm²)
NCB-105-3 95 1.00 7200 11 30 32 105 94 45 48 50 2-6 3 2 0.003
NCB-116-4 146 1.53 6100 12 39 42 116 94 45 60 68 2-6 4 2.6 0.005
NCB-125-4 166 1.73 5500 14 45 50 125 104 50 68 78 2-6 4 3.1 0.007
NCB-144-6 318 3.33 4900 18 50 60 144 114 55 82 91 2-6 6 4.3 0.012
NCB-162-6 525 5.50 4500 22 60 65 162 124 60 89 100 2-6 6 7.5 0.030
NCB-178-6 643 6.73 3800 24 70 75 178 144 70 105 115 2-6 6 10 0.040
NCB-198-10 1248 13.07 3400 28 80 90 198 164 80 124 135 2-6 10 13 0.062
NCB-228-11 2050 21.47 3000 28 90 100 228 187 90 133 146 4-10 11 18 0.10
NCB-252-12 3069 32.13 2700 38 105 115 252 207 100 156 167 4-10 12 24 0.17
NCB-285-11 4552 47.67 2400 48 115 125 285 227 110 170 186 4-10 11 35 0.31
NCB-320-12 6099 63.87 2100 55 125 135 320 257 125 196 212 4-10 12 51 0.53
NCB-360-11 8900 93.20 1900 65 135 150 360 288 140 212 232 4-12 11 73 1.02
NCB-400-10 12051 126.20 1700 75 160 410 328 160 230 4-12 10 101 1.70
NCB-450-12 18602 194.80 1500 85 180 450 368 180 260 4-12 12 137 2.90
NCB-500-14 25802 270.20 1350 95 200 500 408 200 290 4-12 14 180 4.70
NCB-560-10 31003 324.67 1200 95 225 560 446 200 320 4-8 10 278 10.7
NCB-630-12 41998 439.80 1050 100 250 630 486 240 355 4-8 12 365 17.4
NCB-710-12 75000 785.40 950 100 250 710 527 260 385 5-9 12 516 33.0
NCB-800-14 100000 1047.20 850 100 280 800 587 290 420 5-9 14 691 53.0
NCB-900-16 160000 1623.13 750 100 305 900 647 320 465 5-9 16 927 86.0
NCB-1000-18 194997 2042 680 125 320 1000 708 350 515 5-10 18 1224 142.8
NCB-1120-18 269959 2827 600 135 350 1120 769 380 560 6-11 18 1584 231
NCB-1250-20 345016 3613 550 150 380 1250 849 420 610 6-11 20 2070 367.5
NCB-1400-20 529986 5550 490 175 440 1400 969 480 700 6-12 20 3060 693
NCB-1600-24 750002 7854 430 200 480 1600 1089 540 770 6-12 24 3960 1155
NCB-1800-22 974983 10210 380 225 540 1800 1212 600 870 8-16 22 5760 2205
NCB-2000-26 1300041 13614 340 250 600 2000 1332 660 960 8-16 26 7020 3255
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