Head Slider, Head Support Unit and Disk Drive Apparatus

摘要

A head slider which has a head part and which performs at least one of recording and reproducing by the head part in a state in which the head slider floats over a recording medium, which including: a first air bearing part which is disposed on an air inflow end side on a base surface; a second air bearing part which is disposed on an air outflow end side more than the first air bearing part on the base surface and which has the head part and has an area smaller than that of the first air bearing part; a pair of positive pressure generating parts which is disposed on both sides of a center axis of the head slider in the longitudinal direction closer to the air outflow end side than a step part formed of the first air bearing part and the base surface on the air inflow end side; a side rail parts which are disposed between the first air bearing part and one positive pressure generating part of the pair of positive pressure generating parts, and between the first air bearing part and the other positive pressure generating part of the pair of positive pressure generating parts; and an outside side rail parts which are disposed outside the pair of positive pressure generating parts with respect to the center axis of the head slider in the longitudinal direction.