MINEX®-H Hysteresis coupling

As a  hysteresis coupling version it is in turn suitable as a wear-free overload protection alternatively to classical safety couplings.  With the  disk coupling which is optionally available the magnets face each other axially so that torques can be transmitted through plane walls. The transmittable torque can be varied by adjusting the air gap.

The  MINEX® hysteresis coupling transmits the torque from the driving to the driven element without contact via magnetic forces (wear-free torque transmission).

As long as the operating torque is lower than the selected torque (slipping torque), the speed is transmitted synchronously. As soon as the operating torque exceeds the selected torque, the coupling slips  and there is a relative speed between driving and driven side.  At this moment the polarity of the hysteresis material is continuously reversed and it heats up. The holding torque with overload remains almost constant, but might lightly rise with an increasing relative speed and the resulting losses of eddy current.

At this moment the polarity of the hysteresis material is continuously reversed and it heats up. The holding torque with overload remains almost constant, but might lightly rise with an increasing relative speed and the resulting losses of eddy current