A: Silicon nitride is the typical ball material in a ceramic-hybrid bearing. The primary use for hybrid bearings are to extend bearing life by reducing wear. Ceramic balls in a bearing with stainless steel races have been proven to reduce lubricant breakdown and bearing wear.
Advantages of a ceramic-hybrid bearing include:
- Smoother running bearing, less vibration and noise
- Reduced centrifugal loads as the balls spin against the outer ring, due to lighter weight ceramic balls.
- Increased bearing life
- Lower bearing temperatures at high rotational speeds
- Reduced lubrication requirements
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