Magnetic disc memory device

摘要

A magnetic disc memory device comprises a magnetic head support member pivotably mounted on a shaft, gimbals fixedly supported by one end of the magnetic head support member, a magnetic head core secured to the gimbals, and a magnetic disc for recording and reproducing informations through an action of the magnetic head core. A cam is arranged to be engaged by an end of a cancelling member which is effective to reduce the off-track to zero. The cancelling member is fixedly supported by the other end of the magnetic head support member in a manner to extend in a direction opposite to the gimbals, and is formed of a material having a thermal expansion coefficient equivalent to that of the material forming the gimbals.