Method for adjusting the gram load of head gimbal assemblies

Details Method for adjusting the gram load of head gimbal assemblies Method for adjusting the gram load of head gimbal assemblies

1998-03-02

1999-08-31

Hall, Carl E.

Metal working

Method of mechanical manufacture

Electrical device making

360104, G11B 542

Patent

active

059437618

ABSTRACT:
The gram load of head gimbal assemblies (HGA) of a head stack assembly (HSA) is adjusted before the HSA is installed in a disk drive. Each HGA includes an elongated flexible member having a bend that is transverse to the longitudinal axis of the HGA. The apparatus includes means for removably mounting the HSA for movement in a plane parallel to the longitudinal axis of the selected HGA to a Gram Load Adjusting (GLA) station, means to restrain movement of the HGA during gram load adjustment, a force-transmitting bar having an elongated bearing edge, means for positioning the bar with the edge parallel to the bend and in force-transmitting contact with the bend area of the flexible element, and means for moving the edge to adjust the gram load to a desired value.

REFERENCES:
patent: 5459921 (1995-10-01), Hudson et al.
patent: 5465477 (1995-11-01), Tucker
patent: 5537269 (1996-07-01), Zavouri

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