| 摘要 |
PURPOSE:To attain easy laminating assembly by assembling plural discs with lamination via a guide for positioning magnetic disc and a spacer provided with a guide receiving part of the other spacer so as to position the discs. CONSTITUTION:A projection 38 being a guide positioning the radial direction of the disc 30 is provided to one end of the spacer 30 in axial direction and a groove 40 being a receiving part of the projection 38 of the spacer 34 at the adjacent lower part is provided to the other end. Thus, the spacer 34 at the uppermost part is coupled to a hub 28 incorporated with a spindle via a clamp 42 by laminating the spacer 34 to which the disc 30 is positioned and the laminating assembly of the disc is attained easily while performing the positioning of the disc. |
