This chain transfers grain from the header auger to the elevator system inside the combine. It is a paddle-type chain that moves bulk grain along the trough by pulling the attached paddles across the floor of the conveyor housing. Wear on the chain links or pins increases pitch length, causing the chain to skip on the drive sprocket and reducing conveying speed. The manufacturer matches the original link geometry and pin diameter so the chain seats correctly on the sprocket teeth without requiring shimming or adjustment. On installation, verify the chain tension is within the specified range and that the sprocket alignment is square to the conveyor housing.