Compared with ordinary bearings, stainless steel bearings not only have obvious advantages in materials, but also are much stricter than ordinary bearings in terms of technology and precision control. During the working process, the stainless steel bearing runs smoothly, has low noise, is corrosion-resistant, and is widely used. Stainless steel bearings are widely used in food processing, medical equipment, pharmaceutical machinery and other fields because of their high mechanical strength and large bearing capacity. Stainless steel deep groove balls and stainless steel outer spherical bearings are used more.