US 7,486,483 B2
Rotating disk storage device with improved actuator arm
Shingo Tsuda, Kanagawa (Japan); and Takaaki Deguchi, Kanagawa (Japan)
Assigned to Hitachi Global Storage Technologies Netherlands B.V., Amsterdam (Netherlands)
Filed on May 24, 2005, as Appl. No. 11/136,942.
Claims priority of application No. 2004-156407 (JP), filed on May 26, 2004.
Prior Publication US 2005/0264942 A1, Dec. 01, 2005
Int. Cl. G11B 17/00 (2006.01)
U.S. Cl. 360—265.7 17 Claims
OG exemplary drawing
 
1. A rotating disk storage device comprising:
a rotating disk recording medium;
a head suspension assembly mounted with a head for reading data from the rotating disk recording medium;
an actuator arm formed from a conductive material, the actuator arm supporting the head suspension assembly and having a first pivot opening in which a pivot bearing assembly is inserted, the first pivot opening being provided, on an inner surface thereof with a plurality of protruded portions to be brought into abutment against the pivot bearing assembly; and
a carriage molded onto the actuator arm, the carriage having a second pivot opening also in which the pivot bearing assembly is inserted, wherein the carriage is made of a plastic resin.