Abstract: The disk drive read/write head actuator track apparatus consists of a rail having a rail mount at either end to secure the rail to the frame of the disk drive system. The rail is oriented in a radial direction so that, as the read/write head actuator mechanism traverses the length of the rail, the read/write heads move in a radial direction from the spindle to the perpihery of the disks. The rail mount at one end of the rail rigidly connects the rail to the disk drive frame in a location proximate to the perpihery of the disks. This first rail mount precisely locates the one end of the rail with respect to a point on the frame of the disk drive system and is constructed in a way that renders it resistant to flexure in any direction. The other end of the rail is connected to a second rail mount which is attached to the frame of the disk drive system in a location proximate to the spindle of the disk drive system.