Deep groove ball bearings are the most commonly used rolling bearings. Its structure is simple and easy to use. It is mainly used to bear radial load, but when the radial clearance of the bearing increases, it has a certain performance of angular contact ball bearing, and can bear combined radial and axial load. When the speed is high and the thrust ball bearing is not suitable, it can also be used to bear pure axial load. Compared with other types of deep groove ball bearings with the same specifications and sizes, such bearings have smaller friction coefficient and higher limit speed. But it is not resistant to impact and is not suitable for heavy load.

When the deep groove ball bearing is mounted on the shaft, the axial displacement in both directions of the shaft or the housing can be limited within the axial clearance of the bearing, so the axial positioning can be done in two directions. In addition, this kind of bearing also has a certain ability to adjust the center of the shell hole tilt 2'- 10', still can work normally, but has a certain impact on the bearing life.