Internal locking elements (sprags) lock to transmit torque in one direction while turning freely in the other direction.

Also known as hysteresis clutches, these couplings use magnetic force to brake, control tension, and prevent torque overload. They have a shaft on one end for connecting to other components.

Often used in automated systems, these couplings are both air actuated and remotely adjustable, so you can adjust the torque setting even during operation.

Protect shafts, motors, and gear boxes from damage that’s caused by torque overload from machine jams and emergency stops.

If they exceed maximum torque, these couplings disengage, sound an alarm, and then automatically re-engage once the overtorque condition is eliminated.