D65 Track Roller Parts For Bulldozer Undercarriage
D65 track roller are made of forged left and right shells. After processing, they are welded by a full-automatic circular seam welding machine. The left and right bearings are manufactured by casting. 85W / 90 in summer to ensure flexible rotation. D65 track roller floating oil seal is forged by high Chromium and Molybdenum alloy, hardness HRC65-72, working bright strip has roughness 0.1um-0.2um. O-ring is forged by butadiene with acrylonitrile and butadiene rubber copolymerized.