What is the classification and materials of small ceramic bearings?

Category of use

1. High-speed small ceramic bearings: It has the advantages of cold resistance, small force elasticity, high pressure resistance, poor thermal conductivity, light weight, and small friction coefficient. It can be used in high-speed spindles from 12,000 rpm to 75,000 rpm and other high-precision bearings. in the device;

2. High temperature small ceramic bearings: The material itself has a high temperature resistance of 1200 °C, and is self-lubricating. The operating temperature is between 100 °C and 800 °C without expansion caused by temperature difference. It can be used in furnaces, plastics, steel and other high temperature equipment;

3. Corrosion-resistant small ceramic bearings: The material itself has the characteristics of corrosion resistance, which can be used 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 small ceramic bearings: Because there is no magnetism and no dust absorption, it can reduce the bearing peeling off in advance and the noise is large. Can be used in demagnetization equipment. Precision instruments and other fields.

5. Electrically insulated small ceramic bearings: due to high electrical resistance, it can avoid arc damage to the bearing, and can be used in various electrical equipment requiring insulation.

6. Vacuum small ceramic bearings: Due to the unique oil-free self-lubricating properties of ceramic materials, in the ultra-high vacuum environment, the problem that ordinary bearings cannot be lubricated can be overcome.

Material classification
1. Zirconia
All-ceramic bearings have the characteristics of anti-magnetic and electrical insulation, wear resistance and corrosion resistance, oil-free self-lubrication, high temperature resistance and high cold resistance, and can be used in extremely harsh environments and special working conditions.

2. Silicon nitride
Silicon nitride full ceramic bearing rings and rolling elements are made of silicon nitride (Si3N4) ceramic materials. Generally, RPA66-25, PEEK, PI, and phenolic cloth bakelite tubes can also be used.

3. full ball
Due to the design of the cageless structure, more ceramic balls can be loaded than the standard structure of the bearing, thereby increasing its load capacity.

4. Mix
Ceramic balls, especially silicon nitride balls, have the characteristics of low density, highhardness, low friction coefficient, wear resistance, self-lubrication and good rigidity.

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