Detailed Product Description Kove Bearing widely used in assembling of semiconductor, plating machine, PCB machine, Petrol, Chemical, Electrical, Food, ... centi-grade4. (Outer, inner ring and ball with ceramic Si3N4 material, no cage) the temperature will attainability ... corrosion resistance, nonmagnetic insulated of Hybrid stainless steel with ceramic ball bearing:1. (Outer, inner ring with stainless ...