Impacts of surface texture on the tribological behaviours of high-speed bearings

Surface textures are increasingly studied for improving the tribological performances of bearing systems, however, less attention has been paid to their influences on high-speed bearings. This paper invesgates the tribological behaviours of concave textures with different geometric structures, such as various depths, aspect ratios and shapes, under high speed conditions. Some interesting results are drawn out. Only well-designed surface texture could improve the tribological performances of high-speed bearings. This work could provide a valuable guide for the design of surface texture in high-speed bearings.