Bearing material the metallurgical quality was INA bearing of the failure of early influence factors. Follow metallurgical technology (such as bearing steel vacuum deairing with etc) rise, raw material quality improved. Raw material quality factors in the whole eccentric bearing failure analysis of the proportion of the have fallen significantly, but it is still bearing the main influence factors of failure. Select material is justified or not is still bearing failure analysis needed to consider the factors.
The main task of bearing failure analysis, which is based on a lot of background materials, analyze data and failure forms, and find out the cause of the failure of main factors INA bearing, in order to have a corresponding improvement measures are proposed, extend the spherical roller bearing deploying, avoid sudden early failure of bearing happen.
Bearing vibration on bearing failure affect significant. For example: peel, indentation, rust, crack, wear, etc, will be in the INA bearing vibration testing reflected in the special whole so by eccentric bearing vibration measurement device (frequency analyzer and vibration tester) can measure the size of the vibration by frequency distribution can deduce the details of the abnormal vibration measurement for the use of numerical INA bearing premise or sensor installation location, etc and so require a different on each machine measurement value of carries on the analysis comparison made after the judge criterion.
1, reason: overall eccentric bearing low accuracy method: choose provisions on the level of the precision bearings
2, reason: the main shaft bending or box heart hole different methods: the repairing spindle or box
3, reason: belts tight method: reasonable adjustment belt to keep proper
4, reason: bad lubrication method: choose provisions brand of lubricating material and cleaned properly
5, reason: assembly quality low methods: improve assembly quality
6, reason: bearings inside shell around method: to replace bearing and related worn parts
7, axial force too big method: clean, reset sealing mouth ring gap between 0.2 ~ 0.3 mm requirements, correct balance hole diameter and the check impeller static equilibrium value
8, bearing damage method: to replace INA bearing
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