How to lubricate the bearings?
The choice of lubricant is an important factor in ensuring proper bearing operation and extending its service life. Lubricants do the following:
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NSK bearing failure analysis - bearing motor knowledge
by：Waxing
2020-06-11
Resulting in failure of motor for many reasons, NSK bearing dealers here motor broke down to share with you about bearing failure analysis of motor running when the noise is not normal, has sounded the cause of the problem one (1) the rotor and stator insulation paper or slot wedge facies;
(2) oil bearing wear or with sand and other foreign body;
(3) loose stator iron core;
(4) bearing oil shortage;
(5) to fill or brush wind hood fan, air duct and stator iron core facies;
All landowners supply voltage is too high or not balance;
End of the stator winding fault or short circuit.
The cause of the problem (1) grease too little or too much;
(2) bad oil containing impurities;
(3) bearing and shaft neck or end cover mismatch (
Too loose or too tight)
;
(4) bearing inner hole eccentric, wipe with shaft;
(5) the motor end cover or bearing cover not flat;
6) between the motor and load coupling correction, or belt is too tight;
All landowners bearing gap is too big or too small;
Today motor shaft bending.
Troubleshooting (1) according to regulations and grease (
A third - volume
Eg.
;
(2) change clean lubricating grease;
(3) too loose adhesive repair are available, and should be tight car, grinding shaft neck or end cover inner hole, to make it suitable for;
(4) repair the bearing cover, eliminate point;
(5) to assembly;
6. Recalibration, adjust the belt tension;
All landowners to replace new bearing;
End correction motor rotor shaft or replaced.
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