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How to distinguish the stand or fall of asynchronous motor rolling bearing?

by：Waxing 2020-11-12

Rolling bearing fault in the mechanical fault of asynchronous motor occupies a large proportion. Motor on the rolling bearing damage reason is: the warp and woof of the motor is not strong enough, on the mechanical transmission is not in a straight line, smooth oil too little or too much or oil contains impurities, severe vibration and disassembling bearing technology is not reasonable, etc. , usually, can be recognized from the following two aspects to the stand or fall of rolling bearings: ( 1) Listen to the sound: motor functioning, turn the voice is an average slight hum. If heard the stems, stems from the bearing, clarify both inside and outside rims or ball break; If heard 'bone, bone' murmur, clarify bearing in short of oil. ( 2) Remove the bearing stop check: for some reason attack serious problem if the bearing heating, the bearing should be removed, find out the reason for the fever. If the bearing fever accompanied by noise, may be bearing cover and shaft wipe or smooth thin and fat. In addition, still can use hand bearing outer ring, rotation, if it does not have loose phenomenon, turn the smooth, the bearing is good; If there is loose or jamming phenomenon in rotation, illustrate bearing defects. At this time should be further analysis and find the reason to sure bearing can continue to use.

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