In the development and application of engineering ceramics products, ceramic ball bearing is widely used as a typical example in the industrial area, attached great importance by many countries. In high-speed and precise bearings, the hybrid ceramic ball bearing is most widely used. Its rolling body uses hot-pressing Si3N4 ceramic ball and its bearing ring is still steel ring. This type of bearing has a high standardization and have a little influence on machine structure changes. And ceramic ball bearing is easy to maintain, especially for high-speed operation occasions. Its assembly high-speed spindle has high speed, high stiffness, high power, long life and other advantages.