This SAE Recommended Practice provides uniform laboratory procedures for fatigue testing of wheels for demountable rims and hubs intended for normal highway use on trucks@ buses@ truck trailers@ and multipurpose passenger vehicles. The hubs included have bolt circle diameters from 165.1 to 335.0 mm (6.50 to 13.19 in). It is up to each hub and/or wheel for demountable rims developer to determine what test method@ accelerated load factor and cycle life requirements are applicable to obtain satisfactory service life in a given application. When deviations from the procedures recommended herein are made@ it is the responsibility of the hub and/or wheel for demountable rims developer to modify other parameters to obtain satisfactory service life.