Abstract
A repulsive type magnetic bearing system has been designed and fabricated employing the repulsive forces operating between the stator and rotor permanent magnets. The radial axis is the uncontrolled passive one. The vibration along the uncontrolled axis and the increase of control current due to the interference of eddy current has limited the performance at higher speed of operation. This paper has discussed different options to improve the performance at higher speed of operation and the method of reduction of eddy current effect.