A disk drive includes a housing including a support post extending from
the housing. The support post defines a post axis. The disk drive further
includes an actuator rotatably coupled to the housing. The disk drive
further includes a VCM top plate physically coupled to the housing and
comprising a ferromagnetic metal. The disk drive further includes a VCM
magnet magnetically coupled to the VCM top plate. The disk drive further
includes an actuator latch contactable with the actuator. The latch
includes a post opening. The latch is pivotably mounted about the support
post with the support post disposed in the post opening. The disk drive
further includes a pivot ball disposed in the post opening and partially
protruding from the latch between the VCM top plate and the latch along
the post axis.