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Zero Backlash Couplings
 
JSC - Set Screw Jaw Coupling w/ Keyway
  • Large torque capacity
  • Electrically isolating
  • Replaceable spider
  • Balanced design

Ordering Information

  • For a complete coupling, order two hubs and one spider.
  • For example: order JSC16-6-A, JSC16-8-A and JD16/25-98R to form a complete coupling with a 1 " OD, 3/8 " and 1/2" bores and a 98 Shore A spider.
Clamp Style Jaw Couplings
Set Screw Style Jaw Couplings
 

Hubs

PART NUMBER ALUMINUM BORE B (in) OD (in) HUB LENGTH
LH (in)
 COUPLING LENGTH L (in) SHAFT PENETRATION (in)

KEYWAY (in)

SET SCREW
JSC16-6-A 0.3750 1.000 0.467 1.375 0.467 3/32 M4
JSC16-8-A 0.5000 1/8
JSC21-6-A 0.3750 1.313 0.590 1.750 0.590 3/32 M4
JSC21-8-A 0.5000 1/8
JSC21-10-A 0.6250 3/16
JSC26-6-A 0.3750 1.625 0.710 2.086 0.710 3/32 M5
JSC26-8-A 0.5000 1/8
JSC26-10-A 0.6250 3/16
JSC26-12-A 0.7500 3/16
JSC32-8-A 0.5000 2.000 0.820 2.400 0.820 1/8 M6
JSC32-10-A 0.6250 3/16
JSC32-12-A 0.7500 3/16
JSC32-14-A 0.8750 3/16
JSC32-16-A 1.0000 1/4
JSC36-8-A 0.5000 2.250 1.130 3.150 1.130 1/8 M8
JSC36-10-A 0.6250 3/16
JSC36-12-A 0.7500 3/16
JSC36-14-A 0.8750 3/16
JSC36-16-A 1.0000 1/4
JSC36-18-A 1.1250 1/4


Spiders

PART NUMBER OD (in)

DUROMETER/COLOR

TORSIONAL STIFFNESS (Deg/lb-in)

 NOMINAL TORQUE (lb-in) 

  PEAK TORQUE (lb-in) MISALIGNMENT
ANGULAR (Deg) PARALLEL (in) AXIAL MOTION (in)
JD10/15-98R 0.590 98 Shore A/RED .121 8 16
0.8 0.002 0.020
JD12/19-98R 0.750 98 Shore A/RED .114 15 30
0.8 0.003 0.020
JD16/25-98R 1.000 98 Shore A/RED .024 75 150
0.8 0.003 0.030
JD21/33-98R 1.313 98 Shore A/RED .012 87 174
0.8 0.003 0.030
JD26/41-98R 1.625 98 Shore A/RED .006 165 330

0.8

0.004

0.050

JD32/51-98R 2.000 98 Shore A/RED .004 275 550

0.8

0.005

0.050

JD36/57-98R 2.250 98 Shore A/RED .003 410 820

0.8

0.004

0.050

JD10/15-92Y 0.590 92 Shore A/YELLOW .270 5 10

0.9

0.004

0.020

JD12/19-92Y 0.750 92 Shore A/YELLOW .257 9 18

0.9

0.004

0.020

JD16/25-92Y 1.000 92 Shore A/YELLOW .067 29 58

0.9

0.005

0.030

JD21/33-92Y 1.313 92 Shore A/YELLOW .045 35 70

0.9

0.005

0.030

JD26/41-92Y 1.625 92 Shore A/YELLOW .012 97 194
0.9

0.006

0.050

JD32/51-92Y 2.000 92 Shore A/YELLOW .005 220 440

0.9

0.006

0.050

JD36/57-92Y 2.250 92 Shore A/YELLOW .004 285 570

0.9

0.005

0.050


Note 1 Hardware is alloy steel with black oxide finish. Parts have two set screws 90° apart.
Note 2 Performance ratings are for guidance only. The user must determine suitability for a particular application.

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