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外文文献翻译 () 英文原文 EXTENDING BEARING LIFE Abstract Nature works hard to destroy bearings, but their chances of survival can be improved by following a few simple guidelines. Extreme neglect in a bearing leads to overheating and possibly seizure or, at worst, an explosion. But even a failed bearing leaves clues as to what went wrong. After a little detective work, action can be taken to avoid a repeat performance. Keywords: bearings failures life There are many causes of bearing failure, but common ones are improper use, contamination, improper use of lubricants, damage during installation or handling, and mounting errors. It is not difficult to diagnose the cause of the failure because the traces left on the bearings can determine the cause of the bearing failure. However, when post-hoc investigations provide valuable information, it is best to avoid failures completely by properly selecting the bearings first. In order to do this, it is important to review the manufacturers dimensional positioning guidelines and the use characteristics of the selected bearings. 1 Cause of bearing failure About 40% of ball bearing failures are caused by dust, dirt, debris, and corrosion. Contamination is usually caused by incorrect use and poor use of the environment. It also causes problems with torque and noise. Bearing failures caused by the environment and contamination are preventable, and simple visual inspection can determine the cause of such failures. Through post-failure analysis, you can find out what aspects of bearings that have failed or are about to fail should be viewed. Understanding the mechanisms of failure such as erosion and fatigue failure can help eliminate the root cause of the problem. As long as it is used and installed properly, erosion of the bearing is easily avoided. Erosion is characterized by the presence of indentations on the raceways of the bearing ring caused by impact loads or incorrect installation. Erosion usually occurs when the load exceeds the