Although our fan bearings have a very obvious effect, it is difficult to avoid some problems that we find harmless when using fans, such as outer spherical bearings. However, there are also some problems that can affect the effectiveness of the fan, which is why many users believe that the effectiveness of the fan is very low, especially in the use of fan bearings, where these problems are more prominent. So we have a detailed introduction to bearing issues in this section.

The blade tight sleeve and bearing seat bearing are fixed in cooperation between both parties. During debugging, there was a mistake of free support with high temperature and vibration values again. After disassembling the bearing on the cover, slowly rotating the fan manually, it was found that the shaft of the roller bearing at a specific position also had rolling in the load section. So it can be determined that the change in bearing installation clearance and running clearance is too high, which may not be enough. Avoid using a large fan that can automatically adjust the center spherical roller bearing due to the difficulty of surrounding large bearing span shaft deflection or bearing installation angle errors.

As the internal clearance of the bearing becomes increasingly tight, it is impossible to form a lubricating film. When the operating clearance of the bearing drops to zero due to the temperature, if the heat generated by the bearing operation is still greater than the heat dissipation, the bearing temperature will rapidly rise. At this time, if it does not stop immediately, the bearing will burn, which is the reason for the abnormal high temperature operation of the bearing inner race and shaft bearing.

The cause of the fan bearing problem and comparing it with the fan used by the user during the process of the problem. Now, we need to identify the cause of the problem and solve it naturally. We can find and handle it by tightening the sleeve, adjusting the shaft matching and inner ring sealing, and replacing the bearing with a clearance of 0.10 mm. Restart the installation of the fan, and the bearing vibration value and operating temperature return to normal.

The internal clearance of bearings is too small or the precision of design and manufacturing in impoverished areas is a major factor in expanding the working temperature of bearings, in order to facilitate the installation, maintenance, and repair of fan equipment. More about designing commonly used bearing cones and tapered hole bearings, but it is also prone to installation program issues due to negligence. Especially adjust the clearance appropriately.