What are the typical materials used for the rings in anti-friction bearings?

In anti-friction bearings, the rings are critical components that must withstand significant loads and operate under various conditions, including high speeds and temperatures. Hardened steel and high-carbon steel are commonly used materials for these rings because of their excellent strength, wear resistance, and durability.

Hardened steel undergoes a heat treatment process that increases its hardness, making it capable of handling the stresses and strains during operation without deforming. High-carbon steel, on the other hand, also offers a good balance of hardness and flexibility. This combination is necessary to maintain the integrity of the bearing while ensuring smooth operation and reduced friction.

Other materials, such as plastics or softer metals, may not provide the necessary strength or wear characteristics required for bearing applications, leading to premature failure. Therefore, the use of hardened steel and high-carbon steel for the rings in anti-friction bearings ensures reliable performance and longevity in various operating environments.