Patent ID: 8646561

Claim:
An assembling structure for a wheel and hub of an electric bicycle, the structure comprising: a hub accommodating a motor therein and having a rotation shaft protruded to one side and coupled to a body of the electric bike; a wheel coupled to one side of the hub by way of a sliding fit wherein the wheel includes an outer wheel coupled to a tire, an inner wheel, and a spoke connecting the outer wheel and the inner wheel, and wherein the hub is inserted into an axial hole of the inner wheel; a groove unit circumferentially arranged at a periphery of the hub; and a protrusion formed at an area coupled to the hub of the wheel and meshed with the groove unit to allow the wheel to rotate with the hub; a hitching unit protruded in an inner circumferential direction at a distal end of the inner wheel; and a step portion protrusively formed in a circumferential direction of the hub at the groove unit, and hitched by the hitching unit to restrict a rotational movement relative to the hub; wherein a coupling direction of the hitching unit and the step portion is parallel to the sliding fit direction of the hub.