During the consumption process of bearing parts, there are many cold and hot processing processes. In order to meet the requirements of small quantities, high efficiency, and high quality, bearing steel should have good processing performance. For example, cold and hot forming performance, cutting performance, hardenability, etc. Bearing steel should also meet the requirements of appropriate chemical composition, average external structure, less non-metallic impurities, external appearance defects that meet specifications, and external decarburization layer that does not exceed the regular concentration.

Also known as a winch box, it is a box part that supports and lubricates bearings. At the same time, bear the axial and radial forces generated by the equipment during operation. In equipment with rotating shafts, the shaft is generally supported and rotated by bearings, which are installed in a bearing box filled with lubricating oil. During operation, bearings are used to obtain lubrication. At the same time, various forces received by the shaft during operation will also be transmitted to the bearing box, which will bear the load. The material of the bearing box is generally cast iron and cast steel. Mostly used for wheel sets.