HEAD STACK ASSEMBLY OF HARD DISK DRIVE AND METHOD FOR MANUFACTURING THE SAME

摘要

An HSA(Head Stack Assembly) of an HDD(Hard Disc Drive) and a manufacturing method therefor are provided to perform a process for processing an arm member of relative low strength instead of a process for processing a pivot bearing of high strength. An arm member(131) has an internal-side projection on an inner circumference surface of a vertical through hole(132). A suspension(138) is combined to a front end part of the arm member(131). A head slider(139) is mounted in a front end part of the suspension(138) and is a write/read medium of data. A pivot bearing(145) is inserted into the vertical through hole(132) of the arm member(131) and is held on the internal-side projection. The pivot bearing(145) does not pass through the vertical through hole(132). A fixing ring(150) prevents the pivot bearing(145) from being separated from the vertical through hole(132).