Patent ID: 6483661
Filing Date: 2002-11-19
Classification: G11B

Abstract:
A disc clamp for fastening a data storage disc to a hub of a spin motor in a disc drive, the disc clamp comprising:a generally circular disc shaped body having a central portion and a peripheral portion, the central portion having a central aperture therethrough; a concentric annular rib on the peripheral portion for asserting a clamping force on the disc; three screw mounting holes in the central portion equidistantly spaced around the central aperture for receiving screws to fasten the disc clamp to the hub of the spin motor thereby exerting the claming force to the disc; and a slot formed in the central portion between every two adjacent screw mounting holes for equalizing the clamping force around the annular rib of the disc clamp, each slot having a closed end and an open end wherein the open end joins the central aperture.