How to test the running life of national bearings vs timken bearings

489 Published by admin Dec 29,2018

After the installation of the national bearings vs timken bearings, in order to check whether the installation is correct, check the operation. The small machine can be rotated by hand to confirm whether the rotation is smooth. The inspection items have poor operation due to foreign matter, scratches, and indentations. Due to poor installation, the torque generated by the mounting of the mount is unstable, and the torque is too large due to too small clearance, installation error, and sealing friction. Wait. If there is no abnormality, the power running can be started. Large machinery cannot be rotated manually, so the power is cut off immediately after the start of the no-load, the machine is idling, and the presence or absence of vibration, noise, and contact of the rotating parts are checked. After confirming that there is no abnormality, the power is turned on. The power running starts from the low speed at no load and slowly increases to the rated operation of the specified conditions. During the test run, there are any abnormal sounds, changes in the temperature of the national bearings vs timken bearings, leakage or discoloration of the lubricant, etc. If an abnormality is found, stop the operation immediately, check the machine, and remove the bearing check if necessary. For details, please refer to the reasons, phenomena and treatment of the national bearings vs timken bearings. The national bearings vs timken bearing temperature can generally be estimated based on the external temperature of the bearing housing. However, it is more accurate to directly measure the temperature of the outer ring of the national bearings vs timken bearing by using the oil hole. The national bearings vs timken bearing temperature gradually rises from the start of the operation, and the temperature is usually stable after 1 to 2 hours. If the national bearings vs timken bearing is poorly installed, the temperature will rise sharply and an abnormally high temperature will occur. The reasons are such as excessive lubricant, too small bearing clearance, poor installation, excessive friction of the sealing device, and the like. In the case of high-speed rotation, the selection of the national bearings vs timken bearing structure and the lubrication method is also the cause.Timken bearing

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 of national bearings vs timken bearing installation, use, maintenance and maintenance, the load, speed, working temperature, vibration, noise and lubrication conditions of the running national bearings vs timken bearings are monitored and inspected. Find the cause immediately and make adjustments to get it back to normal. The installation condition is one of the primary factors in the use factor. The national bearings vs timken bearing is often changed due to improper installation, and the force state between the parts of the whole national bearings vs timken bearing changes. The bearing runs in an abnormal state and ends the service life early.

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.

The metallurgical quality of national bearings vs timken bearing materials was once the main factor affecting the early failure of rolling bearings. With the advancement of metallurgical techniques (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.national bearings

The manufacture of national bearings vs timken bearings is generally carried out 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 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 life national bearings vs timken bearing analysis of national bearings vs timken is to find out the main factors causing the failure of imported bearings based on a large number of background materials, analysis data and failure modes, so as to propose improvement measures in a targeted manner and extend the service life of bearings. To avoid sudden early failure of the bearing.

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Contact: Grace
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