Patent ID: 7872830

Claim:
A magnetic medium stack assembly comprising: a hub rotatable about an axis of rotation, the hub comprising a hub body and a hub flange, wherein the hub body defines a channel, and the hub flange defines a hub void area; a clamp comprising a contact surface and a clamp flange defining a clamp void area, wherein in a first rotational orientation, the clamp flange is received in the hub void area and the hub flange is received in the clamp void area, and in a second rotational orientation, the clamp flange is engaged with the hub flange and the clamp flange is disposed in the channel; and a magnetic medium fixed to the hub by the clamp, wherein the contact surface of the clamp contacts the magnetic medium wherein the clamp flange is configured to be received in the channel when the clamp flange is axially deflected by a stress force.