Patent ID: 6895656

Claim:
A method of assembling a disk recording apparatus, which comprises a base, a spindle motor fixed to the base, a disk mounted on a rotor of the spindle motor, and a damper fastening the disk to the rotor, the method comprising: driving the spindle motor to rotate a rotating part, including the rotor, disk, and clamper, in a manner such that the disk recording apparatus is supported for movement with one degree of freedom of translation in a direction substantially in parallel to surfaces of the disk; measuring vibration of the disk recording apparatus in the direction of the one degree of freedom of translation caused by the rotation of the rotating part; detecting the angular position of the disk at which vibration of a maximum amplitude is generated; analyzing the eccentricity and the direction of eccentricity of the rotating part in accordance with the measured vibration and the detected angular position; and relatively moving the base and the rotating part to correct the eccentricity in accordance with the result of the analysis.