Air bearing slider with offset crossbars to reduce roll

Details Air bearing slider with offset crossbars to reduce roll Air bearing slider with offset crossbars to reduce roll

1996-12-02

1998-06-02

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

G11B 560

Patent

active

057610045

ABSTRACT:
A negative pressure air bearing slider for use in carrying a transducer in a storage device exhibits reduced variation in roll when moving across a storage medium. In one embodiment, the slider includes an air bearing surface (ABS) having two negative pressure regions defined by a pair of side rails, a cross rail, and an angled rail extending from the cross rail and angled with respect to the longitudinal axis of the slider. Roll variation is reduced by shaping a portion of the cross rail to one side of the angled rail such that it has a larger positive pressure surface than the portion of the cross rail to the other side of the angled rail. The larger surface compensates for decrease in positive pressure on its side of the ABS attributable to increasing air skew angle. In a second embodiment, the slider ABS further includes a positive pressure pocket at the leading edge. Yet a third embodiment includes a debris deflecting protrusion extending from the cross rail in the direction of the leading edge. Optional modifications include angling one or both of the side rails, and extending the lengths of one or both side rails.

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