Bulldozer D155 Undercarriage Parts OEM Track Roller DF Double Flange 175-30-00490 Komatsu Undercarriage Parts OEM Manufacturer

PINGTAI is a professional manufacturer of Komatsu bulldozer D155 series OEM and aftermarket undercarriage parts. When high-end quality, perfect after-sales service and industry-leading warranty time of 6 months to 2 years are essential products, PINGTAI products are your first choice.

Our design is extraordinarily tough and offers excellent grading ability and stability. Heavy-duty link assemblies with large-diameter bushings, substantial track link height, and superior oil seals increase undercarriage durability and lifetime. Serviceability is also assisted by the remote greasing of the equaliser bar centre pin. And the segmented sprockets can be replaced individually, by hand,

Superior design plus product raw materials and production technology control is the advantage of D155 track roller DF

The material of D155 track roller body is forged by 40Mn2. and the surface heat treatment HRC 48-55 depth up to 5-8mm. Precision CNC machine machining size is more accurate

The material of D155 center shaft of the track roller forged by 42CrMo.The hardness of surface heat treatment can reach 48-55HRC More wear-resisting . Core hardness of HRC 28 or above is not easy to fracture. Tempering 180 degrees before finishing. The surface of the center shaft of the track roller is polished by CNC machine tool to make the shaft smoother.

High sealing aprons are used inside the track roller to prevent dirt, sand and water from damaging it.

The track roller using friction welding technology welding quality is good and stable, and environmental protection, no pollution. Welding process does not produce smoke or harmful gas, no splash, no lone light and spark, no radiation. Known as the green welding technology of the future.