Arnold 8-Inch Diamond Tread Steel Wheel - 60lb. Load-Rating Replacement steel wheel 8" x 1.75" steel wheel 1/2" diameter offset hub 1-3/8" hub length and 1/2" grafoil bearing Diamond tread wheel with 60lb. load rating Replacement steel wheel For use on walk-behind mowers and hand trucks Features diamond tread for traction 1/2" offset hub diameter and 1-3/8" hub length; Steel wheel measures 8" x 1.75" 1/2" grafoil bearing and 60 lb. load rating