Patent ID: 6282054
Filing Date: 2001-08-28
Classification: G11B

Abstract:
A disc drive, comprising:a spindle motor comprising a rotatable spindle motor hub, the spindle motor hub having a top portion, the top portion having circumferentially extending teeth;a disc support member extending from the hub;a first disc disposed on the disc support member;a top most disc disposed between the first disc and a top portion of the spindle motor hub;a spacer disposed between the first disc and the top most disc to prevent disc contact;a clamp placed in contacting engagement with the top most disc and over the top portion of the spindle motor hub so that the first disc, the spacer, and the top most disc are clamped relative to the spindle motor hub in response to a clamping force exerted upon the top most disc by the clamp and the disc support member, anda teeth lock ring placed over the clamp and locking onto the circumferentially extending teeth of the spindle motor hub so that the clamp uniformly contacts the top most disc to provide substantially even distribution of the clamping force.