Title: Influence of actuator geometry on rotating losses in heteropolar magnetic bearings

Recently, work on rotating losses in magnetic bearings has focused mainly on the measurement of rotating losses, and on the creation of models that attempt to reproduce these results. Though there has been some success on both counts, there has been less emphasis on interpreting what these results mean in terms of practical guidelines for the design of low-loss bearings. The present work reformulates a previously developed analytical model of rotating loss so that the effects shaft speed and pole count on rotating losses can be more easily identified. Conclusions drawn from this formulation are then compared to previously reported experimental data.