It is a Super Lube Axle Spindle for 1.5″ x 1.5″ 11 gauge steel tubing; for use with bearing of a diameter 1-1/16″. They are used as replacement Axle Spindles on all of our Axles less than 2500 lbs.
Heavy 12 Position Castle Nut
This item is fastened to the end of an Axle Spindle with the use of a 5/32" x 2" Zinc Plated Cotter Pin. This combination secures Hubs to every Pontoon Trailer Model. It is rated for axles over 3000 lbs.