Analysis of the causes of joint bearing life from the analysis of the use factors

The use factors mainly refer to whether the installation adjustment, use and maintenance, maintenance and repair, etc. meet the technical requirements. According to the technical requirements for the installation, use, maintenance and maintenance of the joint bearing, monitor and check the load, speed, working temperature, vibration, noise and lubrication conditions of the bearing in operation, find out the cause and immediately adjust the cause and make adjustments. It returned to normal. The installation condition is one of the primary factors in the use factor. The bearing is often changed due to improper installation, and the force state between the parts of the whole bearing changes. The bearing runs under abnormal conditions and ends the service life early.
The internal factors mainly refer to the three factors that determine the quality of the bearing, such as structural design, manufacturing process and material quality.
The metallurgical quality of joint bearing materials used to be a major factor affecting the early failure of rolling bearings. With the advancement of metallurgical technologies (such as vacuum degassing of bearing steels), the quality of raw materials has 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.
Bearings are generally manufactured through multiple processes 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. The heat treatment and grinding processes that affect the quality of the finished joint bearing often have a more direct relationship with the failure of the bearing. In recent years, research on the metamorphic layer of bearing working surface shows that the grinding process is closely related to the bearing surface quality.
The main task of joint bearing life 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 in a targeted manner, prolong the service life of bearings and avoid bearing protrusion. Early failure of the hair.
First, disassembly
  1. First loosen the locking screw on the eccentric sleeve of the bearing with an Allen key, then insert the small iron rod into the counterbore on the eccentric sleeve of the top cover, and loosen the eccentric sleeve against the direction of rotation of the shaft.
  2. Loosen the bolts that secure the bearing housing. Remove the bearing from the shaft together with the housing. Note before removing the bearing housing at one end of the shaft. The bearing block bolts at the other end of the shaft should be loosened to prevent the bearings at both ends from being damaged by each other.

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