Pulley is set up for a .625" bore with a .125" keyway and designed to be used with a .750" wide drive belt. Pulley has twenty eight teeth which are 3/8"pitch. Pulley is .870" wide and has flanges on both sides to help keep the drive belt tracking.
Note: This is a used item. This item might have been taken in on a trade. RBS may have inspected this item and deemed re-usable. There is no warranty expressed or implied with this item.