A disk drive includes a disk drive base and a spindle motor including a
spindle motor hub, a spindle motor shaft and a stator. The hub includes
an upper end and a lower end. The hub is rotatably coupled to the base
via the shaft for rotating the hub about an axis of rotation. The lower
end is disposed towards the disk drive base. The stator is attached to
the base adjacent the lower end. A balancing ring is attached to the
lower end of the hub about the shaft. The disk drive further includes a
balancing weight attached to the ring. The weight is attachable to the
ring through the disk drive base with the ring attached to the lower end
of the hub. A method of balancing the hub is further provided using the
ring and the weight.