Lower idler sprocket for gathering chain. 8 tooth with 5/8" bore sealed bearing. Fits AGCO Gleaner Hugger, 3000 series, Challenger corn heads 30" rows and wider built 2007 and after.AGCO-Gleaner Hugger, 3000 series.Challenger CH series.Massey Ferguson 3000 series.Made in the USA. Pack of 1