Abstract: A method for measuring imbalance forces in a rotating body, and for determining if an application of imbalance correction weights is required to compensate for the measured imbalance forces.

Abstract: A method for determining weight display thresholds for static and dynamic imbalances and correction weights on a rotating body such as a vehicle wheel assembly, which vary with parameters of the rotating body, wheel and/or tire, and for displaying measured imbalances in relation to determined imbalance thresholds.

Abstract: A method for providing a centering check for a rotating body mounted on a wheel balancer based on measuring at least one imbalance parameter. The rotating body is mounted on a spindle of the wheel balancer and an imbalance parameter or runout measurement taken. The mounting of the rotating body on the spindle is then altered, and a second measurement of the imbalance parameter or runout is taken. A processor in the wheel balancer determines if the difference between the first and second measurements exceeds a predetermined threshold value, indicative of off-center mounting of the rotating body one the spindle.