Stainless steel balancer having recess formed at a side surface, and head stack assembly with the same

摘要

A balancer installed on an overmold of a head stack assembly to adjust balance of the head stack assembly is formed of stainless steel and demagnetized through a thermal treatment after the stainless steel is processed to have a balancer shape. The balancer has a recess formed at a side surface of the balancer to prevent separation of the balancer from the overmold. The stainless steel is austenite based stainless steel.