Motor rotor assembly

The utility model discloses a motor rotor assembly. The structure comprises a rotating shaft, deep groove ball bearings, magnetism isolating baffles, a rotor core, a gear shaft, four-point angular contact bearings, screws and bearing pressing plates, the two ends of the rotating shaft are installed in the deep groove ball bearings respectively, the deep groove ball bearings are installed in a front end cover and a rear end cover respectively, the rotor core is installed on the rotating shaft, and the magnetism isolating baffles are installed at the two ends of the rotor core; a four-point angular contact bearing is installed in the front end cover, a gear shaft in the four-point angular contact bearing is connected with the rotating shaft, and a bearing pressing plate is installed on the outer side of the four-point angular contact bearing. By changing the connection mode of the rotating shaft and the gear shaft and the position of the bearing pressing plate and adding the four-point angular contact bearing,