bearing
Bearing is an important part of modern mechanical equipment. Its main function is to support the mechanical rotating body, reduce its friction coefficient in the process of motion, and ensure its rotation accuracy.
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How to judge the stand or fall of asynchronous motor rolling bearing? - bearing knowledge
by：Waxing
2020-06-10
Rolling bearing fault in a large proportion in the mechanical fault of asynchronous motor.
Motor on the rolling bearing damaged reason: the motor is not strong, the basis of mechanical transmission is not in a straight line or too little or too much oil, lubricating oil contains impurities, severe vibration and disassembling bearing technology is not reasonable, etc. , usually, can from the following two aspects to judge the stand or fall of rolling bearings: (
1)
Listen to the sound: motor functioning, turn the sound is even slight hum.
If you hear 'stems, stems from the bearing, inner and outer rims or ball burst;
If you hear 'bone, bone' noise, bearing the lack of oil.
(
2)
Remove the bearing inspection: if bearing a serious fault and fever for some reason, the bearing should be removed, identify the cause of fever;
If the bearing fever accompanied by noise, may be bearing cover and shaft wipe dry or lubricating grease.
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, then bearing defects.
At this time should be further analysis and find the reason, to determine the bearing can continue to use.
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