MIXING APPARATUS AND METHOD WITH CERAMIC IMPELLER BEARINGS

摘要

An impeller system for a mixer is used with a vessel for holding a material to be mixed. A stationary shaft extends into the vessel. A rotor having impellers extending therefrom is supported on a ceramic roller bearing assembly that supports the rotor for rotation about the shaft. The bearing assembly has a ceramic inner race, a ceramic outer race and ceramic rolling elements. A drive system is external to the vessel to magnetically driver the rotor.