다울빛 이주여성 연합회

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Bella2020.12.09 16:01

SKF 6205-Z * bearing

NSK bearing use factors mainly refer to whether the installation adjustment, use and maintenance, maintenance and repair meet the technical requirements. 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. The installation condition is one of the most important factors in the use factors. The bearing is often caused by improper installation and the stress state between the parts of the entire NSK bearing changes. The bearing operates in an abnormal state and ends its service life early. The main internal factors are It refers to the three major factors that determine the quality of NSK bearings, such as structural design, manufacturing process and material quality.

The metallurgical quality of NSK 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 the failure analysis of NSK bearings.

The manufacturing of NSK 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 processes that affect the quality of finished NSK bearings are often more directly related to the failure of the bearing. In recent years, studies on the deteriorating layer of the working surface of NSK bearings show that the grinding process is closely related to the surface quality of NSK bearings.

The main task of NSK bearing service 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 to extend the service life of NSK bearings and avoid bearing occurrence Sudden early failure.

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