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Ceramic Materials in Rolling Contact Bearings: Silicon Nitride for Increased Applications
The rolling contact fatigue of silicon nitride is considerably stronger than that of steel. This makes hybrid bearings a preferred bearing, especially for machine tool spindle bearings, and for a lot of applications, as they show significantly better performance: higher spindle speed, reduced vibration level of the spindle, cooler spindle operation, improved spindle run-out, simplified construction of spindle system, longer spindle life and lower spindle repair cost.