Why use Mechanical Torque Limiters in a Servo Drive System

R+W recently published a short white paper called, "Why use Mechanical Torque Limiters in a Servo Drive System," which provides a competent explanation of the validity of mechanical overload protection in a world of electronics

The article includes a mathematical explanation of torque overload in a machine crash, and how mechanical torque is often unrelated to instantaneous motor current.

It’s available for download here:

http://info.rw-america.com/why-use-mechanical-torque-limiters-article-0

R+W offers state-of-the-art flexible shaft couplings, motor couplings, and line shafts for any precision application: backlash-free torque limiters, torsionally rigid metal bellows couplings, vibration dampening elastomer jaw-type couplings, compact miniature couplings, flexible servo couplings, axial zero backlash linear couplings, and high-quality line shafts.

All motor, shaft, and servo couplings, as well as torque limiters and line shafts are torsion resistant, with zero backlash. Every shaft coupling and line shaft is also available in stainless steel. CAD drawing files of every shaft coupling, torque limiter, and line shaft are available to download at no cost.