The deep groove ball bearings have simple structure and easy to use, also, the application scope is broad. Such bearings are mainly used to bear the radial load and also can bear the axial load. When the radial clearance is increasing, it can have the performance of angular contact ball bearings and can bear the larger axial load. Compared to the other bearings of the same dimensions, the friction loss of the bearing is minimal and the limit speed is maximum. When under higher speed, the thrust ball bearings can not be used, while, the deep groove ball bearings should be adopted to bear pure axial load.
Most of the deep groove ball bearing cages are pressed steel plate cages, but large bearings use machined solid cages.