Bearing is the important foundation of all kinds of machinery and equipment parts, its accuracy, performance, life and reliability of the accuracy, performance, life and reliability of the host plays a decisive role. In mechanical products, the bearings are high precision products, not only needtheory of mathematics, physics, and many other disciplines comprehensive support, but also need to material science, heat treatment technology, precision machining and measurement technology, numerical control technology and effective numerical method and the powerful computer technology and so on many disciplines for the service, thus bearing is a product on behalf of the state scienceand technology strength.
