doosan bottom roller
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Bottom Roller For Doosan DX220 Excavator Undercarriage Parts
Bottom Roller For Doosan DX220 Excavator Undercarriage Parts • Bottom roller are forged, quenched and tempered. • Rail deep hardened, with average surface hardness HRC 53. • Track bushings treated in a special furnace for high temperature carburizing. • Deep hardened pins for best resistance to wear and fatigue. • Track shoes heat treated for proper toughness and wear resistance.
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