Patent ID: 7992371

Claim:
A stalk roll for an agricultural harvester row unit comprising an elongate body having a front portion that is closer to a direction of travel of the stalk roll than a rear portion and a plurality of longitudinal extending knife edges disposed about a circumference of the elongate body, wherein each of the plurality of longitudinally extending knife edges has a leading side disposed to face toward a direction of rotation of the elongate body and has a trailing side opposite the leading side and disposed to face away from the direction of rotation of the elongate body, and further in which one of the leading and trailing sides of the plurality of knife edges is coated with a first wear resistant coating over substantially its entire length, in which the other of the leading and trailing sides is coated with a second wear resistant coating over at least one of a front portion thereof and a rear portion thereof, and is not coated over a central portion thereof.