... the Corrosion resistance, nonmagnetic insulated, high temperatures of full ceramic bearing:1. (Outer, inner ring and ball with ceramic ZrO2 ... temperature will attainability 260~1100 centi-grade About the Ceramic bearing's cage material have PEEK, UPE, PA66, and PTFE and ... resistance, nonmagnetic insulated and lubricities without oil of plastic bearing:1.(outer, inner ring with plastic material POM,PP, ...