Spherical ball bearings are bearings whose inner and outer diameter ratios are less than a specified value. The ratio of the outer diameter of the bearing to the inner diameter of the bearing is 1.25 or less, which is called a thin-walled ball bearing. This means that the outer diameter-inner diameter of the bearing is small and the bearing wall is very thin, so it is called a thin-walled ball bearing. The precision required for thin-walled ball bearings is very high. Because the walls are very thin, the weight they can carry is also very low, and the impact resistance is very poor, so it is necessary to choose according to the use environment! ! The thin-walled ball bearing has a simple structure and is convenient to use. It is mainly used to bear radial load, but when it increases the radial clearance of the bearing, it has certain angular contact ball bearing performance and can withstand combined radial and axial loads. It can also be used to withstand pure axial loads when the rotational speed is high and thrust ball bearings are not suitable. Compared with other types of bearings of the same size, such bearings have a small coefficient of friction and a high limit speed. However, it is not resistant to impact and is not suitable for heavy loads. Widely used in aircraft, aerospace, astronomical instruments and clamping equipment, food processing equipment, glass production equipment and rotary workbench, machine tools, packaging equipment, medical equipment, optical scanning equipment, radar, satellite communication equipment, textile machinery, robots and Semiconductor manufacturing equipment and other industries.