A micro-actuator for a head gimbal assembly includes a fixed portion
connectable to a suspension of the head gimbal assembly and a movable
portion connectable to a slider of the head gimbal assembly. A pair of
frame ribs interconnect the fixed portion and the movable portion. A PZT
element is mounted to each of the frame ribs. Each PZT element is
excitable to cause selective movement of the frame ribs which causes
movement of the movable portion to cause movement of the slider. A tongue
is fixed to and extends from the fixed portion. The tongue is engagable
with a pivot provided on the suspension of the head gimbal assembly. The
tongue forms a gap between the movable portion and itself.