An inboard thrust surface is provided for a spindle motor that maintains
fluid flow through a journal bearing and generates an added offset
pressure to avoid any subambient pressure within a journal. In an aspect,
journal bearing asymmetry is minimized or eliminated and axial span is
increased between journal bearings, reducing wobble or run-out between
relatively rotating components. In another aspect, journal axial length
is decreased for low profile disc drive memory systems and other spindle
motors. In an aspect, two separate thrust surfaces provide an axial force
in the same direction, opposing an axial bias force created by
interaction of a stator and a magnet, and minimizing power consumption.