(1) High temperature resistance and small thermal expansion coefficient of ceramic ball, bearing ball will not expand due to temperature in high temperature environment, which greatly improves the service temperature of the whole bearing.
(2) With high rotating speed, ceramic ball has oil-free self-lubrication property and low friction coefficient.
(3) Long service life, ceramic ball can be without any grease, service life is 2-3 times that of ordinary bearings.
(4) Insulation. As ceramic ball is an insulator, the insulation effect can be achieved by using ceramic ball between the inner and outer rings of the bearing.