The manufacturing process of crescent bearing is very complex. The steel is made of imported raw materials, which are precision forged, and the workpiece is subject to the most advanced salt bath bainite heat treatment in the world. In order to effectively release the stress, the workpiece after heat treatment must undergo ultra-low temperature freezing at minus 80 °, and the workpiece must be stored for two to three years before grinding. Crescent bearings are mainly used in metallurgy, mining, engineering machinery and other production fields.