Wheel support device

A wheel support device includes a spring fitted to an in-wheel motor and damping the vibration of a motor-driven wheel and the in-wheel motor by extending and retracting, a knuckle attached to the spring and rotatably supporting the motor-driven wheel, a center part of a dynamic mass damper mechanism vibrating together with the in-wheel motor by a force given from a road surface when a vehicle runs, an upper part thereof restricting the vibration of the in-wheel motor by coming into contact with the center part at a prescribed region, and a cushioning member fitted to a portion of the center part or the upper part corresponding to the prescribed region brought into contact with the other.