EZ Loader Boat Trailer replacement BT150A oil bath hub. The BT150A hub fits on EZ Loader 1-1/16" x 1-1/16" straight spindle axles. 5 lugs with 4.5" bolt pattern, studs are 1 3/8" long. Kit includes inner and outer bearings, oil seal, oil cap, washer, nut, and cotter pin. The races, inner bearing, oil seal, and studs are already pressed in from the factory. ** This hub is for 1-1/16 straight spindle axles and will not fit a tappered axle. Use Amazon Item # B0CCXCKFH7 for EZ Loader tappered axle.** 300029533