Arnold 8-Inch Steel Wheel with Ribbed Tread - 60lb. Load-Rating 8" x 1.75" steel wheel for use on hand trucks and small carts 1/2" diameter centered hub and 2-3/16" hub length Ribbed tread wheels 60 lb. load rating Replacement steel wheel For use on hand trucks and small carts; Replaces model 875-B Features ribbed tread for traction 1/2" centered hub diameter and 1-3/16" hub length; Steel wheel measures 8" x 1.75" 1/2" ball bearing and 60 lb. load rating