Excavator Undercarriage Parts PC20 PC30 PC40 Track Roller For KOMARSU
PC20 PC30 PC40 track rollers 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 process; they are mainly used to be fixed under the wheel frame for support. The weight of the machine and distributes it across the track pads.