select material adequacy is still bearing failure analysis factors must be considered. double row angular contact ball bearing, the main task of the failure analysis is based on a lot of background material, analyze data and failure forms, find out the main factors of bearing failure, so that the improvement measures are put forward, prolonging bearing, avoid premature failure of the bearing of the sudden. installation conditions is one of the primary factor of use factor, bearing is often caused by improper installation of a complete set of change the stress of bearing between various parts, double row angular contact ball bearing in the abnormal state run and early failure. according to the bearing installation, use, maintenance, maintenance of technical requirements, the operation of the bearing on the load, speed, temperature, vibration, noise and lubrication condition monitoring and inspection, found that abnormal immediately to find the reason, adjustment, so that it is back to normal.
1, ensure the double row angular contact ball bearing inner ring installation interference minimum standards;
2, ensure minimum oil film thickness criterion;
3, maximum rule of mechanical load and impact load;
four principles and related conditions (stiffness of bearing, shaft seal, etc.).
5, the highest heat load (absolute humidity, temperature) guidelines;
