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Measurement and Control Systems
    The torsional stiffness of the GS Series coupling provides zero backlashes needed for the accuracy for measurement and control systems. The low torques of these applications give the GS Series the ability to provide zero backlashes due to the elastomeric pre-stress.
Servo and Positioning Drives
    The GS Series provides a zero backlash, flexible connection for servo and positioning drives. An added benefit of the GS Series is its damping capabilities.
    For applications that have vibrations at critical speeds, the GS Series coupling can provide a zero backlash solution for vibration problems.
Main Spindle Drives
    The GS Series coupling is used in main spindle drives for machine tools. Torque spikes and cyclical loading are handled by the GS Series by damping or by shifting the vibratory frequency range to a non-critical speed range.
The GS Series can be used in a variety of different applications requiring precision and accuracy.

The GS Series spider features a straight center of the spider tooth, providing higher stiffness due to coupling prestress. The crowning of the ends of the spider legs allows for misalignment, while the curved jaws and solid spider center provide high-speed capability.The jaws of the hubs and the spider legs are chamfered to provide easy assembly. The GS Series coupling design also allows the blind assembly in tight spaces. Raised spider dots on the legs of the spider ensure proper spacing of hubs and spider.

Proper installation of the coupling can provide isolation of electrical currents. Check the CL dimension listed on this page to ensure the proper spacing between spiders and hubs.

The GS Series coupling has spiders available in four different shore hardnesses. Each spider offers benefits for different vibratory, environmental, and torque transmission requirements.
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Unit of Measure
Items
GS14_spider_green

GS Series Elastomeric Spiders
GS14 _Spider_yellow

GS Series Elastomeric Spiders
CJ_4 LEGGED_RED OCT

GS Series Elastomeric Spiders
GREEN_GS19_6legged

GS Series Elastomeric Spiders
GS19_spider_yellow

GS Series Elastomeric Spiders
Description  N/A GS14-SPIDER-64D GREEN-HYTREL N/A GS14-SPIDER-92A YELLOW N/A GS14-SPIDER-98A RED-URE N/A GS19-SPIDER-64D GREEN-HYTREL N/A GS19-SPIDER-92A YELLOW-URE
Spider Size N/A 14 N/A 14 N/A 14 N/A 19 N/A 19
Set Screw Size N/A 8-32 N/A 8-32 N/A 8-32 N/A 10-24 N/A 10-24
Set Screw Style Coupling Location Size (Dimension SL) N/A 0.200 in5.08 mm N/A 0.200 in5.08 mm N/A 0.200 in5.08 mm N/A 0.390 in9.91 mm N/A 0.390 in9.91 mm
Type N/A Jaw
Spider Type N/A 64 Shore D N/A 92 Shore A N/A 98 Shore A N/A 64 Shore D N/A 92 Shore A
Material N/A Urethane
Length thru Bore N/A 0.433 in11.00 mm N/A 0.433 in11.00 mm N/A 0.433 in11.00 mm N/A 0.984 in24.99 mm N/A 0.984 in24.99 mm
Style N/A Solid Center Type
Dimension HD N/A 1.180 in29.97 mm N/A 1.180 in29.97 mm N/A 1.180 in29.97 mm N/A 1.57 in39.88 mm N/A 1.57 in39.88 mm
Spider Outside Diameter (Dimension A) N/A 1.180 in N/A 1.180 in N/A 1.180 in N/A 1.570 in N/A 1.570 in
Spider Thickness (Dimension W) N/A 0.390 in9.91 mm N/A 0.390 in9.91 mm N/A 0.390 in9.91 mm N/A 0.470 in11.94 mm N/A 0.470 in11.94 mm
Color N/A Green N/A Yellow N/A Red N/A Green N/A Yellow
Temperature  N/A -20 to 230 ºF N/A -40 to 194 ºF N/A -30 to 194 ºF N/A -20 to 230 ºF N/A -40 to 194 ºF
Max. Temperature Range N/A -30 to 248 ºF N/A -50 to 248 ºF N/A -40 to 248 ºF N/A -30 to 248 ºF N/A -50 to 248 ºF
Nominal Torque N/A 141.60 in·lb N/A 66.40 in·lb N/A 110.60 in·lb N/A 185.90 in·lb N/A 88.50 in·lb
Max. Torque N/A 283.20 in·lb N/A 132.80 in·lb N/A 221.30 in·lb N/A 371.70 in·lb N/A 177.00 in·lb
Min. Bore (Dimensions ID1/ID2) N/A Solid
Max. Bore (Dimensions ID1/ID2) N/A 0.625 in16 mm N/A 0.625 in16 mm N/A 0.625 in16 mm N/A .938 in24.00 mm N/A .938 in24.00 mm
Max. Speed for Clamping Style Hub N/A 12700.00 rpm N/A 12700.00 rpm N/A 12700.00 rpm N/A 9550 rpm N/A 9550 rpm
Max. Speed for Set Screw Style Hub N/A 15900.00 rpm N/A 15900.00 rpm N/A 15900.00 rpm N/A 11900.00 rpm N/A 11900.00 rpm
Max. Speed for Locking Device Style Hub N/A 25400.00 rpm N/A 25400.00 rpm N/A 25400.00 rpm N/A 19000.00 rpm N/A 19000.00 rpm
Dimension CL N/A 0.060 in1.52 mm N/A 0.060 in1.52 mm N/A 0.060 in1.52 mm N/A .08 in2.03 mm N/A .08 in2.03 mm
Clamping Bolt Style Coupling Bolt Location Size (Dimension SL1) N/A 0.200 in N/A 0.200 in N/A 0.200 in N/A 0.470 in N/A 0.470 in
Dimension TH N/A 0.080 in2.03 mm N/A 0.080 in2.03 mm N/A 0.080 in2.03 mm N/A 0.120 in3.05 mm N/A 0.120 in3.05 mm
Clamping Bolt Style Coupling Bolt Size N/A M3 N/A M3 N/A M3 N/A M6 N/A M6
Weight N/A 0.02 lb N/A 0.01 lb N/A 0.01 lb N/A 0.03 lb N/A 0.02 lb
Axial Misalignment N/A +0.039 -0.019 in N/A +0.039 -0.019 in N/A +0.039 -0.019 in N/A +0.047 -0.019 in N/A +0.047 -0.019 in
Angular Misalignment N/A 0.80 º N/A 1.00 º N/A 0.90 º N/A 0.80 º N/A 1.00 º
Radial Misalignment N/A 0.002 in N/A 0.006 in N/A 0.003 in N/A 0.001 in N/A 0.004 in
Dynamic Torsional Stiffness N/A 6212.00 in·lb/rad N/A 3044.00 in·lb/rad N/A 4540.00 in·lb/rad N/A 32922.00 in·lb/rad N/A 15222.00 in·lb/rad
Static Torsional Stiffness N/A 2072.00 in·lb/rad N/A 1014.00 in·lb/rad N/A 1521.00 in·lb/rad N/A 70976.00 in·lb/rad N/A 5071.00 in·lb/rad
Radial Stiffness N/A 4892.0000 in·lb N/A 1920.0000 in·lb N/A 3452.0000 in·lb N/A 16745.0000 in·lb N/A 6401.0000 in·lb
Stock Sizes N/A 14 - 55
Cubic inches N/A 0.54304 in³ N/A 0.54304 in³ N/A 0.54304 in³ N/A 1.15850 in³ N/A 1.15850 in³