Patent ID: 7260886
Filing Date: 2007-08-28
Classification: G11B,Y10T

Abstract:
1. A magnetic disk fastening method of fastening a magnetic disk to a hub structure, the magnetic disk fastening method comprising: mounting the magnetic disk on the hub structure; setting a thin plate spring having a pressure-bearing part, a flexible part and a disk holding part at a predetermined position relative to the magnetic disk with the disk holding part in contact with a surface of the magnetic disk; pressing the pressure-bearing part of the thin plate spring toward the magnetic disk by screwing a fastening screw in a threaded hole formed in the hub structure; measuring a deflection by which the flexible part of the thin plate spring is deflected during pressing of the pressure-bearing part; and stopping the pressing of the pressure-bearing part of the thin plate spring toward the magnetic disk upon an increase of the deflection to a predetermined value.