Reasons Affecting The Failure Of SKF Bearings

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The reasons for the failure of SKF bearings are often multi-factors. All influencing factors in the design and manufacturing process will be related to the failure of the bearing, which is not easy to judge by analysis. In general, it can be considered and analyzed from two aspects: use factors and internal factors. The use factor mainly refers to whether the installation adjustment, use and maintenance, maintenance and repair meet the technical requirements. Installation conditions are one of the most important factors in the use of factors. Bearings often change due to improper installation, resulting in changes in the stress state between the various parts of the entire set of bearings. The bearing runs under abnormal conditions and fails prematurely. According to the technical requirements of bearing installation, use, maintenance, and maintenance, monitor and inspect the load, speed, working temperature, vibration, noise and lubrication conditions of the bearing in operation. If an abnormality is found, immediately find the cause and make adjustments to make it Back to normal. In addition, it is also very important to analyze and inspect the quality of the grease and the surrounding medium and atmosphere.

The internal factors mainly refer to the three major factors that determine the quality of the bearing, such as structural design, manufacturing process and material quality.

First of all, with reasonable structural design and advanced nature, long bearing life will be achieved. The manufacture of bearings generally involves multiple processing procedures such as forging, heat treatment, turning, grinding and assembly. The rationality, advancement and stability of each processing technology will also affect the life of the bearing.

Among them, the heat treatment and grinding process that affect the quality of finished bearings are often more directly related to the failure of the bearing. In recent years, studies on the deteriorating layer of the bearing working surface show that the grinding process is closely related to the bearing surface quality.

The metallurgical quality of SKF bearing materials used to be the main factor affecting the early failure of rolling bearings. With the progress of metallurgical technology (such as vacuum degassing of bearing steel, etc.), the quality of raw materials has been improved. The proportion of raw material quality factors in bearing failure analysis has dropped significantly, but it is still one of the main factors affecting bearing failure. The proper selection of materials is still a factor that must be considered in bearing failure analysis.

The main task of SKF bearing failure analysis is to find out the main factors causing bearing failure based on a large number of background materials, analysis data and failure modes, so as to propose improvement measures to extend the service life of the bearing and avoid sudden occurrence of the bearing. Early failure of sex.