Motor-driven wheel small in size and improved in ride comfort and ease of assembly

A motor-driven wheel comprising:

• a motor supported swingably in up-and-down direction of a body of a vehicle and rotating a wheel unit;
• a hub bearing rotatably supporting said wheel unit;
• and
• a constant-velocity joint provided on a power transmission path extending from an output shaft of said motor to said wheel unit and having its center of swing located closer to outside of the vehicle relative to said hub bearing,
• said constant-velocity joint including
• an outer race integrated, with a wheel hub to which a wheel of said wheel unit is fixed, into a single part, and having a first opening facing the outside of the vehicle,
• an inner race connected to the output shaft of said motor in a manner that allows motive power to be transmitted, and
• a rolling body transmitting the motive power between said inner race and said outer race.