What material is the bearing made of


Release time:

2025-01-10

Bearings can also be made of porous metal materials such as bronze, aluminum based alloys, zinc based alloys, or non-metallic materials such as nylon and rubber. These materials have their own characteristics and are suitable for different working conditions and environments.

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

high carbon chromium bearing steel

High carbon chromium bearing steel is one of the most commonly used materials in bearing manufacturing. It has high purity, high density, and uniform distribution of carbides, and has good

fatigue resistance. This material is widely used in various bearings, especially large or large section bearings, and its quenching and rigidity can be improved by adding elements such as

manganese  or molybdenum.

stainless steel

Stainless steel bearings are commonly used in humid or corrosive environments, such as medical devices and food processing equipment. Stainless steel bearings have high precision and can

maintain stable performance under harsh conditions. AISI 440C stainless steel is a commonly used material with high carbon content and good hardening ability, suitable for high temperature

environments.

ceramics

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

ceramic materials include zirconia (ZrO2), silicon nitride (Si3N4), and silicon carbide (SiC). These materials are oil-free and self-lubricating, suitable for high-speed operation.

Plastics

Plastic bearings are commonly used in food processing machinery and other applications that require physiological inertness. Plastic does not rust, has ductility and vibration absorption, can

reduce noise, and is suitable for contact with food.

Other materials

In addition, bearings can also be made of porous metal materials such as bronze, aluminum based alloys, zinc based alloys, or non-metallic materials such as nylon and rubber. These materials

have their own characteristics and are suitable for different working conditions and environments.

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