Shaft sleeve structure, outer rotor base assembly and motor

The utility model provides a shaft sleeve structure, an outer rotor base assembly and a motor, relates to the technical field of motors, and solves the technical problem that the end part of a shaft sleeve is easy to deform when a stator core of an outer rotor motor is assembled in the prior art. The shaft sleeve structure comprises a shaft sleeve body and a protective sleeve, the protective sleeve is arranged at the end, away from the end cover, of the shaft sleeve body, and a bearing chamber is arranged inside the protective sleeve. And the outer diameter of the protective sleeve is smallerthan that of the shaft sleeve body, so that radial force cannot be applied to the protective sleeve when the stator core is mounted from one side of the protective sleeve. The outer diameter of the protective sleeve is smaller than that of the shaft sleeve body, so that radial force cannot be applied to the protective sleeve when the stator core is mounted into the shaft sleeve body from one sideof the protective sleeve,