This bushing serves as the pivot interface for the lift-arm linkage in the three-point hitch assembly. It sits between the lift shaft and the outer housing, allowing the arm to rotate smoothly under load while maintaining radial alignment. Wear on the inner bore or outer diameter introduces play in the linkage, which causes uneven lift height and side-to-side drift of the implement. As an original-manufacture component, it is machined to the same wall thickness and bore tolerance as the part it replaces, so no shimming or reaming is needed during installation.