The Balance Engineering Class Differential Balancer receives palletized axles from a conveyor that is loaded by robots. The integrated conveyor moves the axles through the balancing machine process.

The companion flange orientation camera reads the flange's drive shaft position. The CBI unbalance measurement and indication system signals the balance spindle servomotor drive to index the slave shaft to the same angle as the companion flange. The axle and pallet moves to the center of the balance station where the elevator lowers the axle and pallet onto the balance cradle. The slave shaft spindle (oriented to the companion shaft) lowers and engages the drive holes and pilot in the companion flange.

The output shaft spindle clamps into the output shaft. The slave shaft spindle will rotate and the CBI will measure the unbalance in the differential as an assembly. Using the calculated correction data of the CBI, a correction is performed automatically using a drill.

The drill removes the unbalance weight from the outside diameter of the companion flange. The CBI takes a second (audit) unbalance reading to ensure the part is balanced within tolerance. The part is elevated and positioned under a paint marker that marks the unbalance high or low point for future unbalance matching with the driveshaft.