Sales of industrial robots in China reached 120800 in 2017, up 32.2from 91400 in 2016, according to the robotics industry information released by the China Robotics Industry Association. With the demand for industrial robots rising, China is expected to sell 147000 industrial robots in 2018, accounting for 37% of the world's industrial robots. In the future, our country robot bearing market is very broad. With the rapid development of industrial robots in China, the rapid development of robot bearings will be brought. Precision bearings for robot mainly include cross bearing for harmonic reducer, flexible bearing for RV Reducer taper roller bearing angular contact bearing, needle roller bearing, etc.