Shock performance and stiffness of hard disk drive lifters are enhanced by
extending one or more portions of a load beam in a dimension normal to
the load beam plane. A load beam in a high shock suspension system
comprises a planar body having transverse members extending between
longitudinal rails. One embodiment comprises a lifter integral to the
load beam, extending distally, and comprising a rib having a conic cross
section and a lifting tab having upward curving edges. Another embodiment
comprises rails having edges bending upward at 90 degrees, separated by a
first width at a proximal end of the body, and tapering to a second width
at a distal end of the body. A narrow lifter having upward curving edges
is displaced between the rails, and extends distally from the body.
Stiffeners extend from the rails and connect to an intermediate point on
the lifter. Another embodiment comprises the body having a transition
portion tapering in a distal direction to form a narrow lifter, and a
90-degree rail bordering the body, transition portion, and lifter. Other
embodiments comprise: the body slanting upward at an slight angle and a
lifter extending distally from the body; a lifter slanting upward then
downward to a position parallel with a load beam plane; transverse
members having curved edges; and protrusions located on a border between
the body and an intermediate portion that tapers to a lifter.