Description PRODUCT DETAIL:BT8 Spindle Replacement Trailer Wheel Hub Kit 4 Bolt Hub With The Wheel Bolts On A 4 in. Bolt Circle Equipped With 0.5 in. Diameter Wheel Studs 1 in. Inside Diameter Inner and Outer Bearings Races Are Pressed Into The Bearing Diameters Designed For 1250 LB Capacity Axles Dimension - 10 x 9 x 5 in. Item Weight - 6 lbs.