Motor and vehicle

The invention provides a motor and a vehicle. The motor comprises a speed reduction device and a hub capable of rotating with a central shaft as the center. The reduction gear has a ring gear that surrounds the central axis and is rotatable about the central axis. The ring gear has a first contact portion. The hub has a disk hub surrounding a central axis. The disc hub has a disc portion and a second contact portion. The disc portion is disposed closer to one side in the axial direction than the ring gear, surrounds the center shaft, and expands in the radial direction. The second contact portion is disposed on the other axial side of the disc portion and is capable of contacting the first contact portion in the circumferential direction. 本发明提供一种马达及车辆。马达包括减速装置及能以中心轴为中心旋转的轮毂。减速装置具有包围中心轴且能以中心轴为中心旋转的环状齿轮。环状齿轮具有第一接触部。轮毂具有包围中心轴的圆盘轮毂。圆盘轮毂具有圆盘部及第二接触部。圆盘部配置于比环状齿轮更靠轴向其中一方，包围中心轴且沿径向扩展。第二接触部配置于圆盘部的轴向另一侧，可与第一接触部在周向接触。