Rotor sliding block and linear motor

The utility model provides a rotor slide block and a linear motor, and relates to the technical field of linear motors. Wherein the mover sliding block comprises a sliding block main body, the sliding block main body is provided with at least two sliding parts which are in sliding fit with the stator assembly, each sliding part comprises a ball returning assembly which is connected with the sliding block main body, each ball returning assembly comprises a concentric-square-shaped channel and a ball which circularly rolls in the concentric-square-shaped channel, at least one section of the concentric-square-shaped channel is a linear section, and the linear section is connected with the sliding block main body; two sections of openings which are opposite in the radial direction are formed in the linear section of the concentric-square-shaped channel, and parts of the balls penetrate through the openings and extend to the outside of the concentric-square-shaped channel; and the guide piece is arranged in the ba