This Teflon bushing acts as a low-friction bearing surface inside the chain conveyor assembly of a self-propelled forage harvester. It is positioned at a pivot or guide point where the conveyor chain contacts the frame, reducing wear between the moving chain and the stationary structure. As the bushing wears, the chain develops lateral play, which can cause misalignment of the conveyor slats and uneven crop flow through the feed chamber. The original part is machined to the same internal and external diameters as the housing bore and the pin it rotates on, so no shimming or reaming is required during replacement.