In the development and application of engineering ceramic products, ceramic ball bearings are a typical example of the wide application of engineering ceramics in the industrial field, and are highly valued by many countries. Among high-speed precision bearings, hybrid ceramic ball bearings are the most widely used, that is, the rolling elements use hot-pressed Si3N4 ceramic balls, and the bearing rings are still steel rings. This kind of bearing has a high degree of standardization, small changes to the machine tool structure, easy maintenance, and especially suitable for high-speed running occasions. The assembled high-speed electric spindle has the advantages of high speed, high rigidity, high power and long life.
Ceramic bearings and ceramic ball bearings have many excellent properties such as self-lubricating, high temperature resistance, and corrosion resistance.