目前，我国滚动轴承套圈沟道的磨削多在专用机床（如3MK133、3MK136）上经粗磨、精磨，然后再粗研、超精研等多道工序完成。磨床砂轮主轴系统采用3块可倾瓦纯动压滑动轴承支承。因此在砂轮主轴的起动和制动时不可避免地产生磨损。特别是在高效连续生产中进行高速大进刀量磨削时 At present, China’s rolling bearing ring groove grinding more dedicated machine tools (such as 3MK133, 3MK136) on the rough grinding, grinding, and then coarse grinding, finishing and other multi-channel process is completed. Grinding wheel spindle system uses three tilting tile pure dynamic pressure sliding bearing support. Therefore, the grinding wheel spindle inevitably generate wear and tear when starting and braking. Especially in high-speed continuous production of high-speed large amount of grinding feed