Totally sealed bearings require no lubrication, machined from top of the range cold rolled steel, zinc plated riveted is not going to come loose, self-cleaning relief groove, can be utilized with any steel wheel assembly for the most efficient in quality. Beneficial for Residential, Business and Business use.
4″ Inch Steel V Groove (Double ball bearing) 3000lbs Capability.
Size: 4″ X 1/3/4″
Include the Screws