Sprocket for agricultural vehicle

A conveyor for a combine harvester comprising a chain and a sprocket that is configured to drive the chain, the sprocket including:

• an annular body defining an axis of rotation, two opposing sides, an outer perimeter extending between the two opposing sides, and a plurality of gear teeth disposed on the outer perimeter,
• wherein a bottom land extends between valleys of adjacent gear teeth,
• wherein a single continuous edge is defined between two gear teeth at one of the adjacent sides,
• wherein the bottom land includes (i) a central plateau portion, (ii) a first sloping surface extending from one edge of the central plateau portion to the single continuous edge at one of the two opposing sides, and (iii) a second sloping surface extending from the opposite edge of the central plateau portion to the single continuous edge at the other of the two opposing sides,
• wherein an acute angle is defined between transition surfaces of adjacent gear teeth that face one another, and one of the sloping surfaces interconnects the transition surfaces of the adjacent gear teeth,
• wherein the sloping surfaces are configured to either prevent or limit the accumulation of material thereon.