This round bar, tapered trailer axle spindle is made from solid steel and carries a 1,750 pound rating. The inner bearing surface is 1.376 inch diameter and the outer bearing surface is 1.061 inch diameter. The seal surface diameter is 1.72 inch. The axle's mounting surface is 1-3/4 inch diameter and 3-3/8 inch long. Includes nut, washer and cotter pin. Compatible products are listed below.