Age Related Failures In Magnetic Bearing Systems.

LecturePg. 21-26Magnetic bearings continue to be successfully applied throughout industry. As the population of machines using magnetic bearings grows, so does the interest in the appropriate predictive and preventive maintenance (PPM) procedures necessary to deal with both initial startup and aging related problems. This paper highlights several examples of actual field problems, discusses critical maintenance procedures and intervals, and briefly reviews a portion of the proposed new ISO 14839 relating to allowable vibration levels for magnetic bearing equipped turbomachinery