Bearing Quenching

There are many different ways of bearing quenching, including overall quenching, carburizing quenching and high frequency quenching.

1. Integral quenching: Integral quenching is a common bearing heat treatment process, and most of the materials are high-carbon chromium bearing steel. Heating to about 850.d egree. C. in a heat treatment furnace, allowing the carbide formed by spheroidizing annealing to be moderately and uniformly dissolved in the matrix, further quenching and cooling, and then performing low temperature tempering. A uniform precipitate structure is obtained through that undissolved carbide and the temper precipitated carbides, and can be used for a bearing require wear resistance.

2.  Carburizing and quenching: Carburizing and quenching is a heat treatment in which low carbon alloy steel is kept at about 940.d egree. C. in a heat treatment furnace, carburizing gas in the furnace is managed, and carbon is infiltrated and diffused from the surface to the inside to perform quenching. Due to the gradient of carbon concentration, the surface after quenching is hardened, and because the hardness of the inside is lower than that of the surface, it is used for bearings requiring impact resistance.

3.  High-frequency quenching: High-frequency quenching is a method of heat treatment by induction heating. It is mainly used for bearings with complex shapes such as medium carbon steel and automobile wheel hubs. Only the required parts are strengthened.