Anti-buildup system for rollers on a round baler

A baler implement comprising:

• a housing;
• a gate rotatably attached to the housing for rotation about a gate rotation axis between a closed position and an open position;
• a forming belt arranged to move in an endless loop and define a baling chamber for forming crop material into a bale having a cylindrical shape;
• a roller rotatably coupled to one of the gate or the housing, and disposed in rolling engagement with the forming belt, whereby during operation some of the crop material may accumulate on the roller;
• wherein the roller includes a core having a cylindrical shape and a low friction coating applied to an exterior circumferential surface of the core;
• wherein the low friction coating and crop material accumulated thereon exhibit therebetween a coating/crop coefficient of static friction under a pressure between the forming belt and the roller, and operable to generate a resultant static frictional force resisting movement of the crop material relative to the coating;
• wherein the forming belt and crop material accumulated on the low friction coating exhibit therebetween a belt/crop coefficient of rolling friction under the pressure between the forming belt and the roller generating a resultant rolling frictional force resisting movement of the crop material relative to the belt;
• wherein the resultant rolling frictional force between the forming belt and the crop material accumulated on the low friction coating is greater than the resultant static frictional force between the low friction coating and the crop material accumulated thereon, whereby the rolling engagement between the forming belt and the roller is operable to move the crop material accumulated on the low friction coating and thereby dislodge the crop material from the roller.