...De-Xing Zheng; Dateng Zheng Purpose For a lightweight and accurate description of bearing temperature, this paper aims to present an efficient semi-empirical model with oil–air two-phase flow and gray-box model. Design/methodology/approach First, the role of lubricant/coolant in bearing...

...Heyun Bao; Xiaonan Hou; Xin Tang; Fengxia Lu Purpose Under-race lubrication can increase the amount of lubricating oil entering a bearing and greatly improve lubrication and cooling effects. The oil-air two-phase flow and heat transfer characteristics inside a ball bearing with under-race...