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ST Servo-Torque Bellows Couplings

ST Servo-Torque Bellows Couplings from Servometer offer high strength and flexibility for motion control applications.  Available with up to 4000 inch ounces of torque, the ST Series coupling can survive tough conditions.  With bore sizes from 0.250″ to 1.00″ and four coupling sizes, the ST coupling line can be configured with a number of combinations to ensure the right size meets customer needs.Using electrodeposited metal bellows technology, ST flexible shaft couplings offer the maximum amount of flexibility and strength in the industry.   ST couplings offer zero backlash, minimal wind up, and the ability to combine angular and parallel offsets.  Their compact size allows for installation in confined areas.

ST High Torque Bellows Couplings

Part #Std. Bore SizeODBellows LengthOverall LengthScrew SizeTorque: in-ozWindup: arc sec/in-ozParallel Misalignment: inSide Thrust: oz/0.001Angular Misalignment (ø)Stroke Compression: in
ST-1000.375"1.43"0.916"1.510"# 8-3215000.8500.0188.160.129
ST-1500.375"1.43"0.226"0.820"# 8-3215000.2500.001304.010.026
ST-2000.500"2.00"1.508"2.160"# 10-3225000.4000.0425.480.240
ST-3000.500"2.00"0.946"1.600"# 10-3240000.1700.01420.640.160

ST Flexible Shaft Coupling Bore Sizes

Coupling SizeBore Sizes Available (inches)
ST-1000.250 | 0.3125 | 0.394 | 0.500 | 0.625 | 0.750 |0.875
ST-1500.250 | 0.3125 | 0.394 | 0.500 | 0.625 | 0.750 |0.875
ST-2000.375 | 0.394 | 0.625 | 0.750 | 0.875 | 1.000
ST-3000.625 | 0.750 | 0.875 | 1.000

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Description of Flexible Shaft Couplings Requirement

ST High Torque Flexible Shaft Couplings
Applications Advantages of Servometer
Bellows Couplings
Encoders Extremely Low Elastic Windup
Servos Zero Backlash
Motion Control Instrumentation Zero Cyclic Speed Variation during 360 degree rotation
Robotics
CNC Machine Tools Minimal Side Loading
Precision Positioning Resolvers