What materials are used for high-speed bearings?

High-speed bearings usually refer to rolling bearings in which the product of the outer ring diameter and the inner ring speed is greater than 1×106mm.r/min. It has higher rotational speed and lower friction resistance, and usually uses special materials and manufacturing processes.

High-speed bearings are mainly used in high-speed rotating mechanical equipment, such as motors, pumps, turbines, etc., and can withstand larger loads and high-speed rotating friction.

Compared with ordinary bearings, high-speed bearings have higher precision and smaller friction resistance, so they can greatly improve the efficiency and reliability of mechanical equipment. At the same time, high-speed bearings require special materials and manufacturing processes to ensure their stability and lifespan.

The materials of high-speed bearings usually include bearing steel, stainless steel, ceramic materials, etc.

Bearing steel: Bearing steel is one of the most commonly used high-speed bearing materials, with high hardness, high wear resistance and good fatigue resistance.

Stainless steel: Stainless steel bearings are suitable for harsh environments such as high temperature and corrosion, and have good corrosion resistance and oxidation resistance.

Ceramic materials: Ceramic bearings have the advantages of high hardness, light weight, wear resistance, and corrosion resistance, and are suitable for harsh environments such as high speed, high temperature, low temperature, strong magnetic field, vacuum, and high pressure.

There are also some special high-speed bearing materials, such as silicon carbide, silicon nitride and other ceramic materials, which have ultra-high hardness and good wear resistance and are suitable for high-precision, high-speed bearings.