magneta Kendrion (Aerzen) electromagnetic clutches and electromagnetic brakes transmit the turning or braking torque while frictionally engaged during dry runs. Torque transmission is torsional backlash-free when a direct current is active. The pre-tensioned annular spring in the armature element ensures ventilation free of moments of inertia. Virtually maintenance-free, these clutches and brakes can be used in any installation location.