Head support mechanism for a magnetic disk drive with a slider that has a head element

A head support mechanism comprising:

• a slider that has a head element;
• a slider support plate that supports the slider;
• a load beam that holds the slider support plate;
• a fulcrum protrusion that is provided around a front end part of the load beam, and rotatably supports the slider support plate;
• drive means that is configured to pivotally move the slider support plate centering on the fulcrum protrusion;
• and
• a drive means support portion that is provided to overlap the drive means, and supports the drive means,
• wherein the drive means support portion has a narrow part and at least one wide part provided on at least one of a front end part side and a rear end part side of the load beam with respect to the narrow part, and
• wherein the drive means support portion is disposed at a position overlapping the fulcrum protrusion in a projection plane in a direction perpendicular to a main surface of the slider.