Ruland Set Screw Style Jaw Couplings


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Zero Backlash Couplings

JS - Set Screw Jaw Coupling


Large torque capacity Electrically isolating	Replaceable spider Balanced design

Ordering Information

For a complete coupling, order two hubs and one spider.
For example: order JS12-4-A, JS12-5-A and JD12/19-98R to form a complete coupling with a 3/4" OD, 1/4" and 5/16" 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)	SET SCREW
JS10-2-A	0.1250	0.590	0.300	0.875	0.300	M3
JS10-3-A	0.1875
JS10-4-A	0.2500
JS12-3-A	0.1875	0.750	0.385	1.070	0.385	M3
JS12-4-A	0.2500
JS12-5-A	0.3125
JS16-4-A	0.2500	1.000	0.467	1.375	0.467	M4
JS16-5-A	0.3125
JS16-6-A	0.3750
JS16-8-A	0.5000
JS21-5-A	0.3125	1.313	0.590	1.750	0.590	M4
JS21-6-A	0.3750
JS21-8-A	0.5000
JS21-10-A	0.6250
JS26-6-A	0.3750	1.625	0.710	2.086	0.710	M5
JS26-8-A	0.5000
JS26-10-A	0.6250
JS26-12-A	0.7500
JS32-8-A	0.5000	2.000	0.820	2.400	0.820	M6
JS32-10-A	0.6250
JS32-12-A	0.7500
JS32-14-A	0.8750
JS32-16-A	1.0000
JS36-8-A	0.5000	2.250	1.130	3.150	1.130	M8
JS36-10-A	0.6250
JS36-12-A	0.7500
JS36-14-A	0.8750
JS36-16-A	1.0000
JS36-18-A	1.1250

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

0.8

0.002

0.020

JD12/19-98R

0.750

98 Shore A/RED

.114

0.8

0.003

0.020

JD16/25-98R

1.000

98 Shore A/RED

.024

150

0.8

0.003

0.030

JD21/33-98R

1.313

98 Shore A/RED

.012

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

0.9

0.004

0.020

JD12/19-92Y

0.750

92 Shore A/YELLOW

.257

0.9

0.004

0.020

JD16/25-92Y

1.000

92 Shore A/YELLOW

.067

0.9

0.005

0.030

JD21/33-92Y

1.313

92 Shore A/YELLOW

.045

0.9

0.005

0.030

JD26/41-92Y

1.625

92 Shore A/YELLOW

.012

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 JS10 and JS12 have one set screw on each end. JS16, JS21 and JS26 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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