This gear drives the metering mechanism that controls the flow of harvested material from the header into the processing system. It is located in the drive train of the discharge assembly, where it transmits torque from the input shaft to the auger or conveyor. A worn or damaged gear causes irregular feeding, leading to blockages or inconsistent throughput. The manufacturer machines this component to match the original tooth profile and pitch, ensuring proper meshing with the mating gear without requiring adjustment. On reinstallation, verify that the retaining hardware is torqued to specification.