TECHNIQUE FOR REDUCING COGGING IN CLOSED TRACK LINEAR MOTORS

A linear controlled motion system includes a track having at least one mover mounted to the track and effective for receiving articles at one location and transporting the articles to another location. The system includes at least one magnetic linear motion motor for providing a magnetic field effective for moving each mover in a controlled motion along the track. To reduce the cogging effect of the magnetic linear motion motor, at least one bridge element is disposed between the teeth of the motor. For example, slots may be formed in the top portions of each tooth, and individual bridge elements may be slid into the slots. The bridge elements may be made of a material having a relatively high magnetic permeability to reduce the cogging effects of the motor.