Silicon nitride ball CERBEC®

ceramicfor bearingsprecision

Cerbec® silicon nitride balls outperform traditional all steel bearing balls due to the tailored material properties and finishing that maximize the benefits of using ceramics — making Cerbec balls valuable in applications where steel balls degrade rapidly or where electrical insulation is a necessity. CoorsTek can engineer precision Cerbec Balls for size ranges from micro-bearings in dental drills to large-application bearings in wind turbines, with a diameter range from 0.5 mm (0.02in) to 50 mm (2in). APPLICATIONS Cerbec bearing balls are used in numerous applications and industries, including: Aerospace: satellites, jet engines, and wing flap ball screw actuators Automotive: electric vehicle traction motor shaft bearings, fuel injection systems Medical: dental drills Renewable Energy: wind turbine engines Industrial: machine tools spindles And more Material Cerbec Balls are manufactured out of CoorsTek silicon nitride. This tough ceramic has unique material properties that outperform traditional steel alloys. 58% lighter than steel alloys 121% Harder 68% Stiffer 76% Lower thermal expansion Electrically resistant Corrosion resistant Finish CoorsTek produces ceramic balls with exceptionally tight tolerances and smooth surfaces. The excellent surface finish allows Cerbec Balls to improve overall performance. Decreased friction Lower lubrication required Reduced wear Vibration elimination