Undercarriage Iran

undercarriage spare parts

The undercarriage of construction machinery includes the frame, rollers, drive wheels, tracks or belts, and connecting components that transfer weight and force. Track length ranges from 3 to 8 meters, with each shoe width between 400 and 800 mm. The main frame is made of hardened steel with tensile strength of 600–800 MPa, coated for wear resistance. Rollers and drive wheels feature roller bearings with corrosion-resistant coatings, supporting axial and radial loads up to 25 tons. Advanced sealing systems extend undercarriage life and allow operation in soil, sand, and rocky terrain.

Undercarriage components are modular for rapid on-site replacement. Spacing of rollers and drive wheels is adjusted based on machine weight for uniform force distribution. Heat-treated and nitrile-coated tracks last over 5000 operating hours. This design reduces vibration, increases stability, improves power transmission efficiency in bulldozers, graders, and heavy loaders, and optimizes maintenance costs.