Cast Iron Wheel With Solid Rubber Tyre Or Nylon Tyre Outer Diameter Of Wheel = 320 +/ 10 Mm Bore Diameter Of Wheel = 32 Mm Width Of Wheel = 50 Mm Diameter Of Hub = 70 Mm Cross Sectional Size O F Solid Rubber Over Castiron Wheel = 50 Mm X 32 Mm. Shore Hardness Of Rubber = 70 To 80 Cast Iron Wheel Is 210/1993 Grade Fg 300. [ Warranty Period: 12 Months After The Date Of Delivery ] ]