机械工业中普遍存在的摩擦与磨损很多是发生在具有相对运动的支承面上。支承件类型很多,常用的有轴承、轴套、导轨等等。为保证支承件运动的可靠性,减少磨损,防止咬死,往往是在摩擦副零件的设计和润滑介质的改进上采取措施,使摩擦面保持有润滑油膜,以减少金属间直接接触。但是当这类零件在启动或停机过程中以及在突然过载等意外情况下,油膜破坏,使得摩 Much of the friction and wear commonly found in the machinery industry occurs on bearing surfaces that have relative motion. Many types of bearings, commonly used bearings, bushings, rails and so on. In order to ensure the reliability of bearing movement, reduce wear and prevent biting, often take measures to improve the design of friction pair and lubrication medium, so that the friction surface maintains a lubricant film to reduce the direct contact between the metal. However, when such parts in the process of starting or stopping and sudden overload and other unexpected circumstances, the film damage, so that the friction