Abstract: A component (10) to be balanced is fixtured between rotatable fixtures (22, 24) that establish a simulated rotational centerline and is rotated to a preselected rotational speed where the magnitude and angular location of maximum imbalance is determined. An automatic control system (50) generates a laser light pulse locally at the location of imbalance while the component is rotated to remove material of the location with the laser light pulse having a power and/or duration dependent on the amount of material that needs to be removed from the location of imbalance. The sequence is repeated by the automatic control system for additional revolutions of the component until the balance satisfies a preselected balance tolerance range.

Abstract: A transportable apparatus for detecting drive line system imbalances in an automotive vehicle includes an angular position and speed sensor located at a position spaced from, but associated with the drive shaft in non-contacting relationship therewith, the sensor generates a signal responsive to the speed and angular position of the drive shaft relative to a reference point. The apparatus also includes at least one vibration sensor, spaced from, but associated with, the drive line in non-contacting relationship therewith. The vibration sensor detects the drive line vibration and generates a signal responsive thereto. A signal analyzer receives the signals generated by the angular position and speed sensor as well as the vibration sensor and calculates any imbalance in the drive line system and presents counterweight and position parameters for correcting any system imbalance.

Abstract: A driveline assembly and method for balancing the driveline. The driveline includes a drive shaft assembled to a rear axle having a flange therebetween. The driveline is measured to determine an imbalance and a weight is added to the flange to balance the driveline.