Dynamic Analysis of Four Point Contact Ball Bearings

This study focuses on the performance of bearings under different structural parameters and operating conditions. A four-point contact ball bearing model is constructed using a comparative calculation method to analyze the effects of bearing inner ring speed, number of balls, and external axial load variables. The mechanism of bearing performance changes is revealed, the influence of different operating conditions and structural parameters on the dynamic characteristics of bearings is clarified. The research results can provide guidance for the rational design of bearings to a certain extent, enabling them to achieve optimal performance. The research results found that the service life of the bearing is inversely proportional to the maximum contact stress of the inner and outer rings of the bearing. The maximum contact stress of the inner and outer rings can be reduced by adjusting other bearing structural parameters to achieve the best service conditions of the bearing. The purpose is to extend the service life of the bearing and achieve optimal dynamic performance under the conditions of meeting the normal operation of the bearing. This can be solved by adjusting the structural parameters or operating conditions of the bearing.