Appeal No. 1998-0695
Application 08/400,320
formed between a flange portion of a shaft/hub assembly and an
outer race of an upper ball bearing assembly and an inner
surface of a bearing sleeve. In another aspect of the
invention, a flexible printed circuit cable is provided having
a plurality of bonding pads radially aligned with stator gaps
and located within the radial extent of the stator windings
and below the top of the stator poles.
Representative claim 1 is reproduced as follows:
1. A disc drive comprising:
a base casting with a cylindrical bore extending between
the inner and outer surfaces of the casting, the bore having a
central axis and an interior surface facing the central axis,
the inner end of the bore having a stop surface; and
a spindle motor with a cylindrical bearing sleeve,
the bearing sleeve having an outer surface and a first
integral, intermediate flange extending outwardly from the
outer surface and forming at least one abutting surface; said
bearing sleeve mounted in said bore with said flange abutting
surface abutting said bore stop surface and with said outer
surface of said bearing sleeve between said flange and one end
thereof contacting said interior surface of said bore; and
the bearing sleeve having an inner surface and a second
integral, intermediate flange extending inwardly from the
inner surface and forming upper and lower bearing contact
surfaces;
the spindle motor including upper and lower ball bearing
assemblies mounted within the bearing sleeve, with the outer
races of the upper and lower bearing assemblies radially
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