What is a torque arrestor?

A torque arrestor is a mechanical device used to limit or control the rotational motion of a shaft or component, preventing excessive torque that could lead to damage or failure. It typically engages when a predetermined torque threshold is exceeded, thereby protecting machinery and extending the lifespan of mechanical systems. Torque arrestors are commonly found in applications such as automotive drivetrains and industrial equipment. By providing a safety mechanism, they enhance reliability and safety in operations.