Patent ID: 6921993
Filing Date: 2005-07-26
Classification: H02K

Abstract:
1. A spindle motor comprising: a rotatable component defining a journal gap and relatively rotatable with a stationary component; a base plate affixed to the stationary component; and a stator, affixed to the stationary component, for generating an electromagnetic force that interacts with a magnet affixed to the rotatable component and drives the rotatable component, wherein a first portion of the stator is positioned adjacent to and aligned with an axial portion of the base plate, and a second portion of the stator is positioned adjacent to and aligned with a radial portion of the base plate, wherein the axial portion and the radial portion of the base plate converge at a corner, and wherein laminations are formed about the stator having a varied diameter defining a separation between a portion of a surface of the stator and the base plate at the corner.