CE Smith 1-38 - 1-116 Trailer Hub Kit The CE Smith Trailer Hub Kit is designed with pre-greased bearings. cutting down on the mess by producing a final installation onto the axle. The hub kit is made of a galvanized material making it durable in marine environments. The kit includes a carry case, dust cap, cotter pin, and lug nuts. Specifications Galvanized 5 stud x 4.5 bolt circle diameter 1-38 tapered to 1-116 shaft 1750 lb capacity 15 maximum wheel size 1.98 hub inner diameter 6-12 wheel flan