This chain link is a 38.4-VB pitch component used in the header drive system of grain harvesting machines. It connects adjacent chain strands to form a continuous loop that transmits power from the gearbox to the auger and reel drives. A worn or stretched link causes chain slack, which leads to erratic header speed and increased wear on sprocket teeth. The link is manufactured by Rollon to match the original chain's pitch and roller profile, so it seats correctly on the existing sprockets without requiring a full chain replacement. On installation, check that the pin is fully seated and the clip is oriented to avoid catching on adjacent components.