Abstract: In attaching a load beam to a carriage, the swage attachment is used between the carriage and a mountplate, while the load beam is attached to the mountplate by welding and other binding means, to create a structure in which the load beam does not come into direct contact with the swage part, so that a structure is obtained in which the load beam is hardly subject to deformation or other direct influences from the swage operation. In addition, by forming the attaching plate side of the load beam to envelope a carriage, or by extending both sides of the load beam from the central portion in the longitudinal direction toward the carriage, a structure improved in the stability of load beam attachment is obtained.

Abstract: The present invention provides an improvement to a clamp in a disk drive. Insertion holes are formed in the clamp, and screws are inserted into the insertion holes to fasten the clamp to the spindle. The bottom of the screw head contacts the clamp surface to apply a force to the clamp. However, the clamp does not contact the entire bottom surface of the screw head. Only a portion of the bottom surface of the screw head contacts the clamp to apply a force to the clamp. Since the force caused by tightening the screw is applied only to the area contacting the screw, the force diffuses in a non-contact area in an outer portion of the clamp. Therefore, disk distortion and deformation are decreased.