Ceramic bearings compared with metal bearings have what advantages?

Ceramic bearings as an important mechanical foundation parts, due to its excellent performance unmatched by metal bearings, high temperature resistance, super strength, etc. in the world of new materials a horse's head. In the past decade or so, in various fields of national planning and livelihood has been increasingly widely used. Ceramic bearing as an important mechanical base parts in mechanical machines, because of its excellent performance that can not be compared with metal bearings, and metal bearings, compared with metal bearings, better performance, high temperature resistance, super strength, etc. in the world of new materials first, is the leader in the world of new materials. In the past decade or so, it has been used more and more widely in various fields.

In the last decade or so, ceramic bearings have also been increasingly widely used in a variety of different fields and industries. Aerospace, navigation, petroleum, chemical industry, nuclear industry, light textile industry, machinery, metallurgy, electric power, subway, high-speed machine tools, etc., and even in the field of national defense and military technology are applied. In high temperature, high cold, deep cold, flammable, explosive, strong corrosion, vacuum, non-magnetic, dry friction and other special and demanding conditions, so ceramic bearings are also being recognized and applied step by step. Ceramic bearing material advantages 1, high speed: ceramic bearings have the advantages of cold resistance, small force elasticity, high pressure resistance, poor thermal conductivity, light weight, small coefficient of friction, etc., can be applied in 12,000 rpm ~ 75,000 rpm high-speed spindle and other high-precision equipment;.

2, high temperature resistance: ceramic bearing material itself has a high temperature resistance of 1200 ℃, and good self-lubrication, the use of temperature between 100 ℃ -800 ℃ does not produce expansion caused by temperature differences. Can be applied in the furnace, plastic, steel and other high-temperature equipment; 3, corrosion resistance: ceramic bearing material itself has corrosion resistance, can be applied in strong acid, strong alkali, inorganic, organic salt, seawater and other fields, such as: electroplating equipment, electronic equipment, chemical machinery, shipbuilding, medical equipment, etc. 4, anti-magnetic: ceramic bearings because of non-magnetic does not absorb dust, can reduce the bearing early flaking, noise, etc.. Available in demagnetization equipment. 5, electrical insulation: ceramic bearings due to high electrical resistance, free from arc damage bearings, available in a variety of electrical equipment requiring insulation. 6, vacuum: bearings due to the unique oil-free self-lubricating properties of ceramic materials, in ultra-high vacuum environment, silicon nitride full ceramic bearings can overcome the problem of ordinary bearings can not achieve lubrication. Compared to metal bearings, ceramic bearings have what advantages? 1, the fatigue life of all-ceramic bearings can be 10-50 times longer than all-steel bearings, mixed ceramic bearings, life will be about 3-5 times higher than the life of all-steel bearings; life, ceramic bearings are much higher than metal bearings. 2, ceramic bearings have a low coefficient of friction, so the oil lubrication of ceramic bearings, in Lubricant thinning or lack of lubrication, its lubrication capacity is still not lower than the traditional lubricant commonly used in steel bearings; 3, ceramic bearing steel than metal bearings, ceramic materials, high modulus of elasticity, its rigidity than ordinary steel bearings 15-20%. 4, compared to metal bearings, ceramic bearings are more resistant to corrosion and wear. Because of its own material is not the same, so directly lead to the ceramic bearing corrosion resistance and wear resistance than metal bearings more excellent.