The Use of Ceramic Bearings and Related Classification of Ceramic Bearings

All ceramic bearings have characteristics such as high temperature resistance, cold resistance, wear resistance, corrosion resistance, magnetoelectric insulation, oil-free self-lubrication, and high rotational speed. Can be used in extremely harsh environments and special working conditions, and can be widely applied
Used in aviation, aerospace, navigation, petroleum, chemical, automotive, electronic equipment, metallurgy, power, textiles, pumps, medical equipment, scientific research, and national defense and military fields, it is a new material application
High tech products.
The rings and rolling elements of all ceramic bearings are made of all ceramic materials, including zirconia (ZrO2), silicon nitride (Si3N4), and silicon carbide (Sic). Aluminum oxide materials currently only have oxidation
Aluminum ceramic balls are commonly used as bearing retainers, such as polytetrafluoroethylene, nylon 66, polyether imide, and stainless steel materials. Shanghai Kunjing Bearing has also developed ceramic retainers, which are made of
The materials include zirconia, silicon nitride, and retainer materials made of special aviation aluminum, thereby expanding the widespread application of ceramic bearings.
1、 Classification of all ceramic bearings
(1) High speed bearing: It has advantages such as cold resistance, low stress elasticity, high pressure resistance, poor thermal conductivity, light self weight, and low friction coefficient, and can be applied at speeds ranging from 12000 rpm to 75000 rpm
In high-speed spindles and other high-precision equipment;
(2) High temperature bearing: The material itself has high temperature resistance of 1200 ℃ and good self-lubrication. It does not cause expansion due to temperature difference when used between 100 ℃ and 800 ℃. Can be applied in furnaces,
In high-temperature equipment such as plastic and steel making;
(3) Corrosion resistant bearings: The material itself has corrosion resistance characteristics and can be applied in fields such as strong acids, alkalis, inorganic, organic salts, seawater, etc., such as electroplating equipment, electronic equipment, chemical machinery, etc
Shipbuilding, medical equipment, etc.
(4) Anti magnetic bearing: Due to its lack of magnetism, it does not absorb dust, which can reduce bearing surface peeling and thus reduce operating noise. Can be used on demagnetization devices. Precision instruments and other fields.
(5) Electric insulated bearings: Due to their high resistivity, they can avoid arc damage to the bearings and can be used in various power equipment that require insulation.
(6) Vacuum bearings: Due to the unique oil-free self-lubricating characteristics of ceramic materials, they can overcome the problem of ordinary bearings being unable to achieve lubrication in ultra-high vacuum environments. Note: The above five categories of bearings,
The same set of bearings can be applied to high temperature, high speed, acid alkali, magnetic field, and non insulation, but due to different material properties (please refer to the rare earth ceramic material performance table), customers are advised to choose products based on their own
Choose the most suitable ceramic bearing material for your application