Starved lubrication analysis of angular contact ball bearing based on a multi-degree-of-freedom tribo-dynamic model

• DOI: 10.1007/s40544-022-0661-2
• Publication Date: 2023-02-11T12:11:39Z
• Authors: Chengwei Wen; Xianghui Meng; Jiaming Gu; Lin Xiao; Shuang Jiang; Hanbing Bi
• Keywords: Raceway; Ball (mathematics); Ball bearing; Contact Mechanics; Contact force

Abstract When the oil supply is not adequate to maintain ideal lubrication, angular contact ball bearing will enter into starved lubrication regime resulting in potential performance degradation and consequently severe failures. To study effects of on bearing, this paper first proposes a multi-degree-of-freedom (DOF) tribo-dynamic model by introducing five-DOF inner ring, six-DOF balls, cage. The considers ball-raceway full multi-body interactions between components. With different starvation degrees being analyzed, are revealed. By comparison, it found that film thickness, skidding performance, traction forces significantly influenced degrees. It also starvation-induced change ball-pocket force dramatical under combined loads, maximum load condition increases with increasing