What is cogging?

A short explanation of cogging in iron core direct drive motors

Cogging force is a phenomenon caused by the attraction of the iron lamination stack of the motor to the permanent magnets. The direction of this force is either the same or opposite to the moving direction. By moving the motor over the magnet track the cogging effect can be noticed, the motor has a preferred position above the track and will move towards a permanent magnet.

This whitepaper is a general guideline and provides you with information on the K- factor variations and typical cogging values in iron core linear motors and torque motors.