This drive chain transmits rotational force from the gearbox to the rotor shaft in the bale feeding system of a large square baler. It is a 16B roller chain assembly consisting of two strands of 79 links each, which together engage the sprockets that turn the rotor. The rotor feeds crop material into the bale chamber; a worn or stretched chain causes inconsistent rotor speed, leading to uneven bale density and potential jams. As an original AGCO component, the chain is manufactured to the same pitch and tensile rating as the original assembly, ensuring correct engagement with the sprockets without requiring additional tensioner adjustment. On installation, verify that both strands are equally tensioned and that the master links are correctly oriented for the direction of rotation.