Deep groove ball bearings are the most commonly used for rolling bearings. Its simple structure, easy to use. Mainly used to accommodate radial loads, but when increasing the bearings radial clearance, have a certain angular contact ball bearing performance, may withstand the radial and axial joint load. When should not be used in high speed thrust ball bearings, can also be used to accommodate purely axial loads. Compared with other types of bearing the same size, this type of bearing friction coefficient, ultimate high speed. But Not resistant to shocks and should not be subjected to heavy loads.