This sprocket drives the chain in the grain conveyor system, transferring motion from the drive shaft to the conveyor paddles that move harvested material through the unloading tube. It is positioned at the end of the conveyor chain loop and meshes with the chain links to maintain consistent travel speed. Wear on the sprocket teeth causes chain skipping, which reduces conveying capacity and can lead to material blockages at the transition point. As an original-manufacturer component, the tooth profile and pitch diameter match the chain specification used in the original conveyor assembly, so no adjustment to chain tension is needed at installation.