Uriah Products UW000154 Replacement Trailer Hub Kit for BT8 Spindles (5 Bolt on 4-1/2" Circle) ? 1" Inner Dia. Bearings Uriah Products Trailer Hub Kit for BT8 spindles with 1 Inch diameter bearing surfaces. Kit includes hub with bearing races installed, (5) 1/2" dia. wheel bolts on a 4 1/2" Bolt Circle, (5) wheel nuts, (2) 1 inch tapered roller bearings and grease seal. 1,250 lb. capacity. Features Universal Fit for All 1 Inch Diameter Spindles Includes Bearings, Races, Seal and Wheel Nuts 1,250 LBS Capacity Hub Kit 5 Bolts On a 4 1/2 Inch Diameter Bolt Circle 1/2" Inch Diameter Wheel Studs USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.