Patent ID: 6189371
Filing Date: 2001-02-20
Classification: F16F,G01M,G11B

Abstract:
An apparatus comprising:a spindle having a longitudinal axis and an outside diameter;a disk mounted on the spindle through an interior hole in the disk so that a diameter of the disk is generally perpendicular to the longitudinal axis of the spindle, the hole having an inside diameter larger than the outside diameter of the spindle such that a center of gravity of the disk is not aligned with a center axis of the spindle when the disk is biased against the spindle;means for rotating the spindle around the longitudinal axis;means for loosely coupling the disk to the spindle so that rotating the spindle results in rotation of the disk while leaving the spindle movable in relation to the rotating disk when the spindle is subjected to a time-varying external force; andmeans for firmly attaching the disk to the spindle to prevent relative movement between the disk and the spindle;whereby, a rotational balance of the apparatus may be adjusted during assembly while the disk is loosely coupled to the spindle by subjecting the spindle to a time-varying external force.