Patent ID: 8419139

Claim:
A tank wheel assembly comprising: (a) a first tank wheel disposed about an axle; (b) a second tank wheel proximal the first tank wheel and disposed about the axle; wherein a first face of the first tank wheel faces a second face of the second tank wheel; (c) a guide tunnel defined by at least a portion of the first face and at least a portion of the second face; wherein the guide tunnel has outer surfaces and is configured to receive a center guide of a tank tread; wherein the guide tunnel and center guide at least partially maintain the tank tread on the tank wheel assembly; (d) a first wear resistant coating adhered to at least a portion of the outer surfaces of the guide tunnel, wherein the first wear resistant coating comprises at least one of an Fe-Balance alloy, a Ni-Balance alloy, and Colmonoy 88; and (e) a second wear resistant coating adhered to at least a portion of the center guide of the tank tread, wherein the second wear resistant coating comprises an iron oxinitride impregnated with a polymer; wherein the coefficient of friction between the first wear coating and the second wear coating is not greater than about 0.35, such that abrasion between the center guide of the tank tread and the guide tunnel is restricted, via the first wear coating on the guide tunnel and the second wear resistant coating on the center guide.