What material is the bearing made of

The main materials of bearings include high carbon chromium bearing steel, ceramics, stainless steel, low-carbon steel, plastics, etc. ‌‌

High carbon chromium bearing steel: This is one of the most common bearing materials, with high purity, high density, and uniform carbide distribution. It has excellent fatigue resistance and

is widely used in various bearing production. For large or large section bearings, elements such as manganese or molybdenum can be added to improve rigidity and quenching properties.

Ceramics: Ceramic bearings are suitable for extremely harsh environments and have characteristics such as high temperature resistance, wear resistance, corrosion resistance, insulation, and

oil-free self-lubricating properties. Common ceramic materials include zirconia (ZrO2), silicon nitride (Si3N4), and silicon carbide (SiC).

Stainless steel: Stainless steel bearings perform well in humid and corrosive environments, with high precision and corrosion resistance, and are commonly used in fields such as medical

equipment, printing machinery, and food processing.

Low carbon steel: Low price, suitable for low-speed, light load applications such as hand carts, casters, etc.

Plastic: Plastic bearings do not rust, have strong vibration absorption, no noise, and physiological inertia. They are suitable for contact with food and are commonly used in food processing

machinery.

The selection of these materials depends on the operating environment and requirements of the bearings, such as high temperature, corrosive environment, or high-speed operation, which

can have a significant impact on the material selection.