Roller Bearings for Aerospace Applications
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).
- Flight control components
- Gas turbine engines
- Main landing gear wheels
- Precision motion control components
- Wing flaps and slats ballscrew actuator
Cerbec® Balls are manufactured out of CoorsTek silicon nitride. This tough ceramic has unique material properties that outperform traditional steel alloys.
- 121% Harder
- 68% Stiffer
- 76% Lower thermal expansion
- Electrically and corrosion resistant
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
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