What are the structural components of ball bearings? Many customers are curious about the structure of the ball bearing. The editor was also curious about the small ball before. Now I will tell you how the ball bearing manufacturer makes the ball bearing. Ball bearings are mainly composed of four basic elements: ball, inner ring, outer ring and retainer, also called cage or retainer. General industrial ball bearings meet the standard of AISI 52100. The balls and rings are usually made of high-chromium steel, and the Rockwell C-scale hardness is about 61-65. The hardness of the cage is lower than that of the ball and the ring, and its material is metal (such as: medium carbon steel, aluminum alloy) or non-metal (such as: Teflon, PTFE, polymer material). Ball bearings have smaller rotational frictional resistance than journal bearings, so at the same speed, the temperature generated by friction will be lower. Co., Ltd. was established in 1985. It is a manufacturer specializing in precision ball bearings and ball bearings. If you are looking for a professional ball bearing manufacturer, choose it.