... .Excavator sprocket,Sprocket Wheel,Sprocket segments, teeth rim 2.Material:alloy steel Type: Sprocket D31Other type is ... D20, D30, D31, D50, D60, D75, D80 (D85), D155 2) Hitachi: EX40, EX60, EX150, EX100M, EX100, EX120, EX150, EX200 ... -1-2-3, EX300-1-3-5, EX400, UH08, UH07 3) ... link ,bolt & nut, bucket ,teeth ,adaptor,muffler etc . Bulldozer Sprocket D31