A hard disk drive assembly that includes a device for limiting a movement of a
head of a head gimbal assembly from a surface of a disk. The head is coupled to
the disk and attached to a suspension of the head gimbal assembly. The invented
device limits a distance that the head can move away from a surface of the disk.
Limiting the distance that the head can move away from the surface of the disk,
may reduce the impact force associated with the head slapping the disk, which may
reduce damage associated with head slapping.