We sell full ceramic bearing and ceramic ball bearing.

Full ceramic bearing means the inner ring, out ring, and ball are composed of ceramic materials, including zirconia and silicon nitride.

Ceramic ball bearing, also named hybrid bearing, means the ball is ceramic, while the out ring and inner ring are steel. Ceramic ball bearing could have identical structure with steel bearing. And we also capability design or produce customers special request.

zirconia bearing

silicon nitride bearing

ceramic bearing (out and inner ring: silicon nitride; rolling element: zirconia ball)

ceramic bearing ( out and inner ring: zirconia; rolling element: silicon nitride ball)

ceramic bearing ( out ring and rolling element: silicon nitride; inner ring: zirconia)

Full zirconia bearing without retainer

Retainer Material:

PTFE, NYLON, PEEK, Stainless Steel or without retainer

Precision:

P0 for full ceramic bearing and P0 ~ P4 for ceramic ball bearing

Major bearing series:

Deep groove ball bearing, Angular contact ball bearing, and Thrust ball bearing

Properties advantage, compared with metal bearing:

1. Higher limit speed:

Ceramic is lighter than steel and can effectively restrain the centrifugal force, therefore enhances the limit speed.

2. Higher precision usage:

Ceramic has hardness and elastic modulus than steel which means ceramic bearing is stiffer more rigid than steel bearing thus can be used in higher precision condition.

3. Longer life:

Lighter ceramic leads to lower centrifugal force, thus extends bearing life. Furthermore friction coefficient of ceramic is lower than steel which also extends bearing life.

4. Higher temperature usage:

Ceramic is more mechanical stable at elevated temperature, thus could be used under higher temperature.

5. Temperature-variation usage:

Ceramic has a lower thermal expansion coefficient, thus the clearance and the tolerance variation is lower than those of steel bearing which leads to a large temperature-variation range usage of ceramic bearing.

6. Better seizure resistance:

Ceramic has smaller thermal expansion coefficient, indicating less thermal deformation, thus enhance seizure resistance.

7. Could run without oil or grease:

Ceramic never rusts and is self-lubricated, thus can be used in situation that requires no oil or grease.

8. Resistant to acid, alkali and salt:

Chemical industry is the largest potential application industry of ceramic bearing to be exploited.

9. More suitable for magnetic application:

Our ceramic bearing is non-magnetic which means it is difficult for magnetic particle to adhere on the race, thus reducing particle-abrasion.

Ceramic ball bearing is especially outstanding in above first three items, while full ceramic bearing is outstanding in other items.

Full silicon nitride bearing is more superior than full zirconia bearing. It can endure higher temperature and is more resistant to acid, alkai and salt.

Usage:

For rough service environment, as such as like chemical, metallurgy, food, electric, medical industry etc. Our bearing products have been used as high-speed motor spindle bearing, high-precision machine spindle bearing, dental drill bearing, high-speed wheel head bearing, instrument bearing, hard drive bearing, skating bearing, fishing bearing, etc.