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Analysis of the Type of Failure Bearing

Release time : 2017-06-16 02:44:55
Bearing failure has a variety of reasons, the bearing in the process of operation, due to poor bearing material, the structure is irrational, bearing surface defects, vibration and shock, poor lubrication and so will cause bearing failure. Here the type of bearing failure will be roughly divided into three types, one is the contact wear failure, one is the clearance caused by the failure, there is a fracture failure. The following will be based on different types of bearing failure to analyze the reasons to find the best possible solution. The first is bearing failure caused by the contact wear. Continuous wear can cause gradual damage to the bearing and eventually lead to loss of bearing dimensional accuracy and a range of other problems. Wear may cause the bearing shape to change, and then increase the gap to affect the lubricant or make it a certain degree of pollution caused by the complete loss of lubrication, resulting in bearing failure. Followed by changes in the clearance cause the failure. Bearings at work, due to external or internal factors, so that the original with the gap to change, resulting in reduced bearing accuracy, and even cause "killed" we called the clearance change failure. External factors such as excessive interference, the installation is not in place, the temperature rise caused by the amount of expansion, transient overload, etc., the intrinsic factors such as residual austenite and residual stress in the unstable state are caused by the main changes in the main reason. The last type of bearing failure is fracture failure. Micro-bearing fracture failure is mainly due to defects and overload two factors. When the external load exceeds the material strength limit caused by part fracture known as overload fracture. The cause of the overload is that the host is faulty or improperly installed. Bearing parts of the micro-cracks, shrinkage, bubbles, large foreign debris, overheating tissue and local burns and other defects in the impact of overload or severe vibration will also cause damage in the defect, known as defective fracture. In general, the most common failure of the bearing failure is mostly overload failure.   In response to these problems, we need to buy bearings, according to the bearing load and working environment, carefully select the bearing material and accuracy, to ensure that the selected bearings meet the relevant standards or design requirements, in the course of use, pay attention to record bearing installation and cooperation The operation of the equipment, regular inspection, to avoid damage to the equipment on the equipment damage. If the bearing in the course of the work of corrosion, should be the location of its analysis, what type of corrosion, whether directly related to failure and so on. In short, the bearing of the early selection and post-maintenance on the failure of the bearing has a significant impact on the correct and reasonable use of bearings is a systematic project in the bearing structure design, manufacture and installation process, for the early failure of the link, take the appropriate Measures, can effectively improve the bearing and the host of the service life, which is bearing manufacturers and customers should bear the common responsibility.