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Proper selection is still bearing failure analysis must be considered. The main task of double row angular contact ball bearing failure analysis, is based on the analysis of the data and the failure form of the large amount of background material,, identify the main factors causing bearing failure, so as to put forward the improvement measures, extending the service period of bearings, avoid unexpected early bearing failure. Installation conditions is one of the leading factors in the use factor, the bearing is often caused by the installation of inappropriate stress state between the various parts of the complete bearing change, double row angular contact ball bearings in the abnormal state operation and early failure. According to the requirement of bearing installation, use, maintenance, maintenance technology, which acted on the bearing in operation, speed, load, temperature, vibration, noise and lubrication condition monitoring and inspection, found abnormal immediately find reasons, adjustment, restore normal.
1, ensure the double row angular contact ball bearing inner ring minimum interference criteria;
2, to ensure the minimum oil film thickness criteria;
3, the maximum mechanical load and shock load criterion;
4, the relevant conditions criteria (bearing, shaft seal stiffness, etc.).
5, the maximum heat load (absolute humidity, temperature) criterion;