LAUSR

Purpose Thermal performances are key factors impacting the operation of angular contact ball bearings. Heat generation and transfer about angular contact ball bearings, however, have not been addressed thoroughly. So far most researchers only considered the convection effect between bearing housings and air, whereas the cooling/lubrication operation parameters and configuration effect were not taken into account when analyzing the thermal behaviors of bearings. In this investigation, the structural constraints of high speed spindle, structural features of bearing, heat conduction and convection are fully analyzed to study the heat generation and transfer of high-speed angular contact ball bearings. Design/methodology/approach Based on the generalized Ohm's law, the thermal grid model of angular contact ball bearing of high-speed spindle was first established. Next Gauss-Seidel method was employed to solve the equations group by Matlab and the nodes temperature was calculated. Finally, the bearing temperat...