Abstract: An actuator arm latch assembly for a disk drive is disclosed which restrains movement of a disk drive actuator arm assembly during exposure of the disk drive to a shock event. In one embodiment, the actuator arm latch assembly is activated by the disk drive being exposed to a shock event that is directed along/about a first shock axis (e.g., within a reference plane that contains a disk drive base plate), and also is activated when the disk drive is exposed to a shock event that is directed along/about a second shock axis that is both non-parallel and non-colinear with the first shock axis (e.g., within a reference plane that is disposed at an angle to the disk drive base plate, and including perpendicular thereto).

Abstract: A conductive lock washer for safely dissipating electrostatic charge which builds up on a disk surface without discharge across the head/dish gap. The lock washer, including a series of alternating inner and outer tabs, acts to reduce torque on the spindle washer damper and hoop stress on the washer itself, while still creating a conductive pathway to the top cover of the hard drive assembly.

Abstract: A conductive lock washer for safely dissipating electrostatic charge which builds up on a disk surface without discharge across the head/dish gap. The lock washer, including a series of alternating inner and outer tabs, acts to reduce torque on the spindle washer damper and hoop stress on the washer itself, while still creating a conductive pathway to the top cover of the hard drive assembly.