This pin serves as the pivot point for the tine arms on a hay rake. It connects the moving tine assembly to the rake frame, allowing the arms to oscillate as the rake follows the ground contour. Wear on the pin bore or the pin itself introduces play in the linkage, which causes uneven tine engagement and reduces crop pickup efficiency. The pin is machined to the original geometry so that the bushing clearance and oscillation arc are preserved without modification.