C.E. Smith Galvanized Trailer Hub Kit Boat Trailer Accessory - These hubs come fully assembled with pregreased bearings, which cuts down on the mess and makes final installation on to the axle much easier. Includes carry case, dust cap, cotter pin and lug nuts. Galvanized 5 stud x 4.5in bolt circle diameter 1-1/16in straight shaft 1350 lb capacity 5-1/2in wheel flange diameter 14in maximum wheel size 1.98in hub inner diameter