Spindle motor having stator rim formed of concentric laminate layers

摘要

A spindle motor for use in a disk drive has a spindle motor hub having an axis of rotation, an annular magnet element coupled to the spindle motor hub, and a spindle motor stator. The spindle motor stator includes a stator rim formed of a plurality of laminate layers concentrically disposed about the axis of rotation. The stator rim has a plurality of stator teeth portions in operable communication with the magnet element for rotating the spindle motor hub. The stator teeth portions each have a magnetic flux surface disposed orthogonal to the axis of rotation. The spindle motor stator has a plurality of windings distributed along the stator rim. The windings each have a winding axis parallel to the axis of rotation and being disposed about respective ones of the stator teeth.