The reason for the temperature rise of the drive bearing of centrifugal fan
May 03, 2020
1 The quality of lubricating oil is not good. The purpose of using lubricating oil is clear, so that there is no direct contact friction between the moving shaft and the static pressure shaft, but lubrication is also suitable for bearings. In the lubrication process, if the quality of oil is not good or the quantity is not enough, there will be friction between the bearing and the shaft, and the oil can not be cooled in time. At the same time, with the increase of temperature, the bearing wear is also serious.
2 the quality of the bearing is not good. If the inner sleeve and shaft are not tight enough, they will be bitten to death. the gap between jacket and housing seat is too large or too small. the quality of sliding bearings is not good. Black gold and ball contact is not good, long time moving bearings are easy to cause damage.
3 the cooling system of the bearing is a problem. Generally speaking, there are two kinds of water energy system and machine oil and water system. Centrifugal fan long time rotation bearing will produce a certain amount of heat. The cooling water or cooling oil is not filled in time after evaporation, and the temperature is too high.
4 There is no horizontal placement equipment in the equipment. Centrifugal fan must be done well before installation, to avoid bearing skew in operation, in high speed operation, bearing side friction side clearance, long time operation is easy to damage the bearing.
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