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In the engine, we often use a variety of bearings, bearing many different types, and now, different functions of different bearings, its role is also different. In use, the engine bearing maintenance should be done, in order to avoid our bearings there are a variety of problems, we must understand the causes of bearing damage and solve. Lubrication bad: the engine starts immediately after the big throttle high-speed operation. Improper selection of lubricants, filling inadequate, not in accordance with seasonal changes in time and oil deterioration. Lubricant mixed with impurities: the engine is running, if impurities into the lubricating oil, will result in sliding bearing alloy layer wear. Bearing is an indispensable part of the engine, and in the use of the time we have to pay attention to maintenance, so as to enable the use of our bearings, and now, with our technology development faster and faster, the bearing function will be more it is good.