Bearings are an important component in contemporary mechanical equipment. Its main function is to support mechanical rotating bodies, reduce their friction coefficient during motion, and ensure their rotational accuracy. Deep groove ball bearings are the most representative rolling bearings. Compared with other types of bearings of the same size, this type of bearing has a low friction coefficient, high maximum speed, simple structure, low manufacturing cost, high accuracy, no need for frequent maintenance, and a large size range and multiple forms, making it the most widely used type of bearing. It mainly bears radial loads and can also withstand certain axial loads. When it only bears radial loads, the contact angle is zero.
