The function of thin-walled bearings is to separate the rotating body by a certain distance, prevent the rotating body from falling into the rolling bearing, and correctly control the rotation of the rotating body. During operation, rolling friction will cause heat and damage, especially in the case of high-speed operation, friction damage and heat will increase, and in more serious cases, damage will increase. It will cause the rolling bearing to catch fire, crack, and lead to failure.

Among the reasons for the damage of thin-walled bearings, the quality of bearing materials is one of the key reasons. Therefore, the raw materials are required to have the following characteristics as much as possible:

1. Have stable compressive strength and plastic deformation, can withstand certain loads and impact forces, and have good plastic deformation and bending strain.

2. The friction with the rotating body is small and the wear resistance is good.

3. The heat transfer coefficient should be as high as possible.

4. The proportion is small, and the thermal expansion coefficient is similar to the inverted type.

5. Since the maintenance of steel frame structures is usually complicated, the materials used are required to have high-quality manufacturing performance.

6. The raw materials for metal material mold forming must have high-quality plastic deformation and plasticity.

7. The material has high-quality fiber laser cutting performance.

8. The raw materials for the introduction of thin-walled bearings must have high-quality introduction performance.

Thin-walled bearings can also be coated to improve internal fit and achieve the desired running characteristics.