Actuator arm assembly with self-locking arm

A disk drive system, having a spindle motor and a plurality of magnetic recording disks, comprising:

• an actuator arm assembly comprising:
• an actuator member, said actuator member having a circumference with a horizontal groove therein, and
• a removable actuator arm having a top side, a bottom side, a front end portion, and a rear end portion, where the rear end portion of said removable actuator arm is inserted in the horizontal groove of said actuator member for securing said rear end portion of said actuator member;
• a head suspension assembly comprising at least one head, said head suspension assembly attached to the front end portion of said removable actuator arm;
• a controller means;
• an actuator/drive means connected to said controller means and said actuator arm assembly thereby providing means for controlling the movement of said heads;
• a read/write channel means connected to said controller means and said head thereby providing means for sending and receiving data from said disks;
• and
• a spindle control/drive means connected to said controller means and said spindle motor thereby providing means for controlling the rotational speed of said disks.