Patent ID: 7513030

Claim:
A method of assembling an actuator arm system for a hard disk drive comprising: positioning a lower bearing on a flange, the lower bearing having an inner race and an outer race, the flange supports the inner race in an axial direction relative to a shaft and the flange is in direct contact with the inner race, and wherein the lower bearing and an upper bearing are positioned on the same side of the flange; placing an actuator arm on the outer race of the lower bearing wherein the actuator arm is in contact with the outer race of the lower bearing; placing the upper bearing on the shaft, the upper bearing having an inner race and an outer race, wherein the outer race of the upper bearing is in contact with the actuator arm, such that the actuator arm is located between the lower bearing and the upper bearing; applying an adhesive between the inner race of the upper bearing and the shaft; applying an axial preload force to the inner race of the upper bearing; curing the adhesive; and releasing the preload force.