This chain link connects two lengths of roller chain within the baler or forage harvester's drive system. It is used to repair or extend a chain assembly that transmits power from the gearbox to the pickup or rotor drive. A worn or stretched link causes chain slip, irregular feeding, and eventual breakage. The link matches the original pitch and roller profile so that it seats correctly on the sprocket teeth without binding. On installation, use a new master link clip and verify the chain tension is within the manufacturer's specification.