GAM: Quick Reference — servo couplings, bellows vs elastomer
Mike Santora
Elastomer? Bellows? What is the best coupling technology for your motion control application? Each has its advantages from torsional stiffness to vibration dampening. A quick comparison of features and advantages can point to the best solution.
Servo Coupling Design
There are two basic types of servo couplings: bellows and elastomer. Both provide zero backlash, low inertia, and compensation for shaft misalignment. The difference between the two types lies in the flexible, compensating element.
