CE Smith 1-38 - 1-116 Tapered Spindle 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 dust cap, cotter pin, and lug nuts. Specifications 6 stud x 5-12 bolt circle diameter 1-38 tapered to 1-116 shaft 1750 lb capacity 16 maximum wheel size 1.98 hub inner diameter 6-34 wheel flange dia