Home Products agricultural chain weld on sprockets pulleys C belt size x series x series Use with X series hubs only. 3 Available Products SALE P80X - Weld-On Pulley 8" O.D., for C section belt. ... SALE P100X - Weld-On Pulley 10" O.D., for C section belt. ... SALE P120X - Weld-On Pulley 12" O.D., for C section belt. ... 3 Available Products