The original list of radial ball bearings is the most widely used rolling bearing. It is characterized by low friction resistance and high rotation speed. It can be used on parts that bear radial loads or combined loads that act simultaneously in radial and axial directions. It can also be used on parts that bear axial loads, such as small-power motors, Automobile and tractor gearboxes, machine tool gearboxes, general machines, tools, etc.

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 loads, but when the radial clearance of the bearing is increased, it has certain performance of angular contact ball bearings and can bear combined radial and axial loads. When the rotational speed is high and thrust ball bearings are not suitable, they can also be used to bear pure axial load. Compared with other types of bearings with the same specifications and dimensions as deep groove ball bearings, this type of bearing has a small friction coefficient and a high limit speed. But it is not impact resistant and not suitable for bearing heavy loads.