Dematic 8-1/2 OD Lagged 21 BF 21 Conveyor Belt Pulley is a lagged drive pulley used on belt conveyors to guide and drive the belt. It features an 8.5-inch outside diameter and a lagged surface designed to improve belt grip and reduce wear during operation. The "21 BF 21" designation in the model name identifies its configuration within Dematic's pulley lineup.
