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).

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

Service
The combination of superior material and finish deliver better overall service life than traditional steel balls. Additionally, Cerbec Balls are used in harsh duty applications, including corrosive environments and high operating temperatures that would rapidly degrade steel balls.

Reduced operating costs
Limited maintenance
Higher reliability
Longer part life

Material : ceramic, silicon nitride
Applications : for bearings
Other characteristics : precision
Diameter : Min.: