5″ Rubber Steel Wheel 3/4″ Roller Bearing 1-5/8″ Hub Length 350 Lbs. Capacity RS50HB03 Quite rolling, semi-cushioned ride Economically priced Good floor protection
5″ Rubber Steel Wheel 3/4″ Roller Bearing 2-3/16″ Hub Length 400 Lbs. Capacity RS50JB04 Quite rolling, semi-cushioned ride Economically priced Good floor protection