Patent ID: 6055123
Filing Date: 2000-04-25
Classification: G11B

Abstract:
A disc drive including one or more discs mounted to a hub of a spindle motor and a disc mounting system for mounting the discs to the spindle motor hub comprising:one or more spring elements, having a substantially C-shaped axial cross section and formed as an arc of a circle, having a curvature along their lengths, at an outer radial contact surface thereof, both before and after final assembly, greater than or equal to the radius of the inner diameter of the discs, mounted to the inner diameter of the discs with at least a portion of the open C-shaped axial cross section axially overlapping the inner diameters of the discs,the spring elements also including an inner radial surface near middle portions of the spring elements bearing directly against the spindle motor hub and the out radial contact surface near end portions of the spring elements bearing directly against the inner diameter of the discs to radially position the discs relative to the spindle motor hub.