The hardness of the bearing ball and its use

- Jul 30, 2018-

Due to the special nature of the material, the hardness of the bearing ball can reach HRC62-65 degrees, and the material wear resistance is better. After cold working into a steel ball, the precision can reach one ten thousandth of a millimeter, and the appearance is mirror-like. The color is chrome, but it cannot be soldered.


For the time being, bearing balls have been commonly used in high-speed, low-noise bearings, bicycles, motorcycles, automobiles, rails, universal ball, luggage, electronics, and other media. The bearing ball has great pressure and friction at work, so the bearing steel has high and balanced hardness and wear resistance, as well as high elastic limit.


In order to obtain the required performance, the balance of the chemical composition of the bearing steel used for the bearing ball, the content of the non-metallic inclusions and the step, the step of the carbide are very strict. It is required to have a carbon-containing Wc of about 1% and a strontium content of Wcr 0.5% to 1.65; and it is possible to produce a bearing ball of superior quality and excellent performance with a strict production process.