Sliding Bearing Lubrication Theory

Sliding friction exists in the working process of sliding bearing. The advantages of sliding bearing include the stability, reliability, and noiseless. Requirement of the formation of lubrication film is to ensure the sufficient lubricant for the sliding bearing. Under the condition of liquid lubrication, the surfaces of the sliding bearing are separated by lubricating oil and there is direct contact, so the friction loss and the wear of the surface can be reduced greatly. Besides, the lubricating film also has a certain vibration absorbed performance. In this chapter, the basic theory of sliding bearing lubrication will be introduced, on bases of which the reasons of sliding bearing lubrication failure can be analyzed further, and finally, establish the foundation for seeking the effective way to solve the problem.