Ceramic bearing is an important part of mechanical foundation. It has excellent performance that metal bearings can not match, high temperature resistance, super strength and so on in the world of new materials.

In the past ten years, ceramic bearings have been increasingly widely used in various fields. Aerospace, Marine, nuclear industry, petroleum, chemical industry, textile industry, machinery, metallurgy, electric power, food, locomotive, subway, high speed machine tools and scientific research and national defense military technology need to be in high temperature, high speed, cryogenic, inflammable, explosive, corrosive, vacuum, electrical insulation, non-magnetic, the dry friction under special conditions such as work, The indispensable replacement role of ceramic bearings is gradually recognized by people.

Ceramic bearings have the following advantages: high speed and acceleration capacity -- can operate under the condition of DN value of more than 3 million, and skid, wear and heating can be reduced; Long life and wear resistance -- the fatigue life of all ceramic bearings is expected to be 10-50 times longer than that of all steel bearings, and the life of mixed ceramic bearings is about 3-5 times higher than that of all steel bearings. Very little lubrication is required -- the friction coefficient of ceramic materials is low, and the lubrication capacity of oil-lubricated ceramic bearings is still no less than the traditional lubricants commonly used in steel bearings when the lubricating oil becomes thin or lean; Abrasion resistance -- because ceramic material is inert material, it is more resistant to corrosion and wear; High rigidity - because of the high elastic modulus of ceramic materials, its rigidity is 15-20% larger than ordinary steel bearings; High temperature resistance -- all-ceramic bearing can work in temperature above 500C; Low torque -- according to the structure, the torque of ceramic bearings is reduced by about 1/3; Non-magnetic non-conductive - ceramic bearing can not be damaged by magnetic and electric.