Actuator arm assembly having side wall projection for carrying juxtaposed head wires

An actuator arm assembly for a disk drive having a base, comprising:

• an actuator arm rotatably mounted on said base, said actuator arm having a first surface and a second surface;
• a first suspension fixed at a base end portion thereof to said first surface of said actuator arm at a front end portion thereof;
• a first head mounted on a front end portion of said first suspension;
• a second suspension fixed at a base end portion thereof to said second surface of said actuator arm at the front end portion thereof;
• a second head mounted on a front end portion of said second suspension;
• a first lead wire bundle connected to said first head;
• a second lead wire bundle connected to said second head;
• a plurality of projections formed integrally with said actuator arm so as to project from a side surface of said actuator arm in a direction substantially parallel to said first surface and said second surface, said projections being spaced apart from each other and disposed in a single plane extending in a longitudinal direction of said actuator arm;
• and
• said first and second lead wire bundles being juxtaposed in said direction substantially parallel to said first and second surfaces and fixed to said projections by an adhesive.