Abstract: A bearing assembly to mount an actuator on a mounting hub of a data storage device comprises a cylindrical hub for the actuator having an internal bore along a cylindrical hub axis. The bearing assembly also has one or more bearings mounted inside the internal bore of the cylindrical hub and a sleeve mounted inside the one or more bearings so that the cylindrical hub rotates relative to the sleeve. The sleeve is adapted to contact a mounting hub. A single piece captive screw is retained within the sleeve and is free to rotate about the cylindrical hub axis independent of the sleeve to engage the mounting hub and tighten the sleeve to the mounting hub.

Abstract: An apparatus for increasing the operative force on an air vane latch apparatus in a disc drive includes an air gate having an elongated rib extending parallel to the air vane immediately downstream of the air vane for reducing pressure behind the air vane during disc drive operation to reduce the disc speed at which the latch apparatus moves from a latched position to an unlatched position. The air gate is preferably a rib extending along an underside surface of the head disc assembly cover positioned parallel to the air vane and immediately downstream.