Ceramic bearing is a general name, can be subdivided into full ceramic bearings and mixed ceramic bearings (semi-ceramic bearings) two.
Common ceramic materials in bearings are: silicon nitride, alumina, zirconium oxide and silicon carbide.
Ceramic bearings as an important mechanical foundation parts, because of its metal bearings can not be compared with the excellent performance, high temperature resistance, super strength, etc. in the world of new materials a horse ahead. In the past decade or so, it has been increasingly widely used in various fields
1.Because ceramic is almost not afraid of corrosion, so ceramic rolling bearings are suitable for operation in the harsh conditions of the cloth full of corrosive media.
2. Because the density of ceramic rolling ball is lower than steel, the weight is much lighter, so the rotation of the centrifugal effect on the outer ring can be reduced by 40%, and thus the service life is greatly extended.
3.Ceramic by the thermal expansion and contraction of the impact of less than steel, and therefore in the bearing clearance is certain, can allow the bearing in the temperature change in the more violent environment work.
4.Because the ceramic modulus of elasticity is higher than that of steel, it is not easy to deform when subjected to force, so it is conducive to increasing the working speed and achieving higher accuracy.
Because ceramic bearings have the characteristics of high temperature resistance, cold resistance, wear resistance, corrosion resistance, anti-magnetic electric insulation, oil-free self-lubrication, high speed, etc., thus expanding the application of ceramic bearings, which can be used in extremely harsh environments and special working conditions.
Widely used in aviation, aerospace, navigation, nuclear industry, petroleum, chemical industry, light textile industry, machinery, metallurgy, electric power, food, locomotive, subway, high-speed machine tools, medical equipment, low-temperature engineering, optical instruments, high-speed machine tools, high-speed motors, printing machinery, food processing machinery and scientific research, national defense military technology and other fields, need to work in high temperature, high-speed, deep cold, flammable, explosive, strong corrosion, vacuum, electric insulation, non-magnetic, dry friction and other special working conditions.
1.High-speed bearings: with cold resistance, small force elasticity, high pressure resistance, poor thermal conductivity, light weight, small coefficient of friction and other advantages, can be used in 12,000 rpm -75,000 rpm high-speed spindle and other high-precision equipment;
2.High temperature resistant bearings: the material itself has high temperature resistance 1200 ℃, and good self-lubrication, the use of temperature between 100 ℃ -800 ℃ does not produce the expansion caused by temperature differences. Can be used in the furnace, plastic, steel and other high-temperature equipment;
3.Corrosion-resistant bearings: the material itself has corrosion-resistant properties, can be used in strong acids, strong alkalis, inorganic, organic salts, seawater and other fields, such as: electroplating equipment, electronic equipment, chemical machinery, shipbuilding, medical equipment, etc.
4.Anti-magnetic bearings: because of the non-magnetic, so it does not absorb dust, can reduce the bearing surface flaking, thus reducing the operating noise. Available in demagnetization equipment. Precision instruments and other fields.
5.Electrical insulation bearing: Because of high resistivity, it can avoid arc damage to the bearing, and can be used in all kinds of power equipment requiring insulation.
6.Vacuum bearings: Because of the unique oil-free self-lubricating properties of ceramic materials, in ultra-high vacuum environment, can overcome the problem of ordinary bearings can not achieve lubrication.
With the continuous progress of processing technology, the increasing level of technology, the cost of ceramic bearings continue to decline, has been from the past only in some high, fine, pointed areas of small-scale applications, and gradually spread to various industrial areas of the national economy, the product market price is also gradually approaching practical, to the extent that the user can accept, ceramic bearings have been applied to a large area of the tide has come!
Because the bearing material performance varies, please customers choose the product, according to their application to the occasion to select the most suitable ceramic bearings, we are China ceramic bearing manufacturers, can provide you with the most suitable choice of program, quality off the best products and the lowest price. If you have questions, you can contact me at any time.
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-Email:wanyu@sdwybearing.com
