This chain is the feeder-house conveyor chain for a harvesting machine. It transmits power from the drive sprocket to the slat-and-flight assembly that moves crop material from the header into the threshing mechanism. The chain operates under high tension and in a dusty environment; wear on the pins and rollers causes elongation that leads to slat misalignment and reduced feeding efficiency. The manufacturer machines the side plates and pins to the original profile so that the pitch matches the sprocket tooth spacing without requiring a take-up adjustment beyond the normal range. On installation, verify the chain is not twisted and that the master link, if used, is oriented with the clip closed against the direction of travel.