the pim can utilize magnets for electrical production or as bearings or both electrical production and bearings or no magnets at all just heat to motion magnets provide no contact parts to wear out or cause drag strong magnets can accurately locate the components providing proper tolerances magnets can also be used to generate an electrical field for the purpose of transferring power into and out of a pim non contact permanent rare earth neodymium magnetic bearings are the most desirable bearing option when the pim is spinning at higher rpm the leakage from the ddcs causes a fluid pressure bearing to occur between the fixed and moving components this fluid pressure bearing aids the magnetic bearing in ensuring that moving and stationary components do not make unwanted contact with each other how does a fluid pressure bearing work there are many types of fluid pressure bearings in common use already the puck on an air hockey table rides on a fluid pressure bearing ice skates ride on a fluid pressure bearing fluid pressure bearings work by maintaining sufficient fluid pressure between components to not have physical contact between the components turbulence induced sealing u201c tis u201d can be utilized in a pim in order to improve the effectiveness of a fluid pressure bearing tis is the addition of texture to the internal surfaces the texture reduces drag by causing fluid layers to adhere to each of the individual surfaces which when combined with the constant flow created by the fluid leakage that occurs between differing.