Abstract: Improvements in a rotor runout and concentricity jig that mimics the runout and/or concentricity of an axle of a vehicle that can be transferred to a rotor. The jig uses discs with high and low points and/or two eccentric tubes. The parts can be adjusted from in-phase to out of phase to duplicate the characteristics of the axle. The adjustments have incremental detents that correspond with the imperfections of the axle to rotor. The position of the rotor is marked on the axle and the rotor to ensure that the rotor is placed onto the axle in the exact same location. The axle and the rotor are cleaned, reinstalled and measured for runout and concentricity. The rotor is then removed and inaccuracies for runout and/or concentricity are transferred to the jig for machining the rotor.

Abstract: Improvements in a rotor runout and concentricity jig that mimics the runout and/or concentricity of an axle of a vehicle that can be transferred to a rotor. The jig uses discs with high and low points and/or two eccentric tubes. The parts can be adjusted from in-phase to out of phase to duplicate the characteristics of the axle. The adjustments have incremental detents that correspond with the imperfections of the axle to rotor. The position of the rotor is marked on the axle and the rotor to ensure that the rotor is placed onto the axle in the exact same location. The axle and the rotor are cleaned, reinstalled and measured for runout and concentricity. The rotor is then removed and inaccuracies for runout and/or concentricity are transferred to the jig for machining the rotor.