ceramic ball silicon nitride ball si3n4 ball zirconia ball zro2 ball silicon carbide ball sic ball aluminum oxide ball al2o3 ball
ceramic roller silicon nitride roller si3n4 roller zirconia roller zro2 roller
ceramic bearing silicon nitride bearing si3n4 bearing zirconia bearing zro2 bearing silicon carbide bearing sic ball aluminum oxide bearing al2o3 bearing full ceramic bearing ceramic ball bearing ceramic roller bearing
hybrid ceramic bearing hybrid ceramic ball bearing hybrid ball bearing hybrid roller bearing ceramic hybrid bearing ceramic hybrid ball bearing
Home | Company | Engineering Data | Product Range | Application | Contact | Site Map

Home > Engineering Data > Load Ratings of Ceramic Bearings

Load Ratings of Ceramic Bearings

Ceramics has a modulus of elasticity higher than that of high carbon chrome bearing steel. In the ceramic bearing, therefore, less deformation on the rolling elements (balls or rollers) generates higher stress at the contact point between the rolling element and raceway, when compared to a steel bearing.

Therefore, the contact stress between rolling elements and races of ceramic bearing would be significantly higher than that of steel bearing, under the same amount of load. The following table shows the evaluation of load ratings of ceramic bearings versus steel bearings.

Item Dynamic Load Rating Static Load Rating Impact Load Capacity
Full ceramic bearing 「80% of steel bearing 「80% of steel bearing 「10-20% of steel bearing
Hybrid ceramic bearing
「80% of steel bearing 「70% of steel bearing 「70% of steel bearing

The load capacity of ceramic bearings is accordingly decreasing when working temperature is increasing. HSC suggests choosing a larger load rating capacity bearing when using a full ceramic bearing for your application.

Due to the brittleness of ceramics, full ceramic bearings are not capabale of withstanding too much impact load. The outer races or inner races will generate cracks or even suddenly break under a certain amount of impact load.

Please consult HSC to learn more about the specific load ratings of a specific bearing size.



Copyright (C) 2008 HSC CERAMICS. All Rights Reserved.