SWING ARM ASSEMBLY FOR MAGNETIC DISK DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a swing arm assembly for a magnetic disk device of low torque by reducing torque variation. SOLUTION: A level difference (recess) 11 for separating a housing outer diameter part 3 and an arm inner diameter part 7 is provided at a bearing part position 10 of either the part 3 or the part 7 to reduce external force acting on a bearing 1 to reduce torque variation to lower torque.