AXLE 1500lb. CAPACITY spring suspension- galvanized, 1.5" O.D. square tube, 50.5"" seal surface, 43" spring centers, 49" tube length. This axle does not come with hubs or brake assemblies. It uses a 1" metric bearing which we sell. The part number for the bearing kit is 100BK. The hub assembly that we assemble on this trailer can also be purchased which includes the hub and bearing kit. The part number is 46199A.  Please verify all measurements on the drawing before ordering to ensure you are ordering the correct axle. If you have any questions in regards to this print please feel free to e-mail us at customerservice@boattrailerpartssuperstore.com. Please note that due to the size and weight of this package additional UPS charges are applied.