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INA bearings imported materials metallurgy quality were the main factors influencing the INA bearing early failure. Followed the metallurgical technology (such as vacuum degassed bearing steel, etc.) the increase of raw material quality is improved. Raw material quality factor in the overall proportion of eccentric bearing failure analysis of the has dropped significantly, but it is still one of the main influence factors of bearing failure. Select material adequacy is still bearing failure analysis should consider factors.

The main task of the bearing failure analysis, which is based on a lot of background material, analyze data and failure forms, find out the main factors of INA bearings failure, so that the improvement measures are put forward, lengthen spherical roller bearing, avoid premature failure of the bearing of the sudden.

Bearing vibration influence on bearing failure is very significant. For example: peeling, indentation, rust, crack and wear will be reflected in the INA bearing vibration test so overall by the use of special eccentric bearing vibration measurement device (frequency analyzer and vibration meter, etc.) can measure the size of the vibration through the frequency distribution can be concluded that the details of the abnormal vibration measured values because of INA bearings use premise or sensor installation position and different need in advance of each machine measurement value judgment dimension after analysis and comparison.

1, the reason: low overall eccentric bearing precision method: choose regulation accuracy grade bearing

2, the reason: the main shaft bending or casing hole method: different heart repair spindle or box

3, reason: the belt too tight method: make the elastic of the belt can be adjusted properly

4, reason: poor lubrication methods: choose brand lubricating materials and proper clean

5, reason: method of assembly quality low: improve the assembly quality

6, because: bearing inner shell run laps method: replace the bearing wear and related parts

7, method of axial force is too large, cleaning, adjustment seal mouth ring clearance requirement between 0.2 ~ 0.3 mm, correcting impeller balance hole diameter and check static equilibrium value

8, bearing damage method: change of INA bearings

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