Hitachi EX300-5 Excavator Machinery Bulldozer OEM Undercarriage Spare Parts Forge Steel Front Idler Assembly With Heat Treatment

The idler is cast using alkali phenolic resin sand or sodium silicate-bonded sand process. After heat treatment, surface hardness reaches minimum HRC48-58 with hardness depth between 4-6mm (HRC45). This enables the idler to withstand high impact and wear resistance under harsh working conditions.

Our idler is processed by CK5110 large-scale precision CNC vertical lathe, ensuring precise dimensions with high quality surface finishing. These manufacturing standards guarantee stability and extended service life.

The splined joint between the idler and shaft offers a larger bearing surface and improves torque transmission, boosting reliability and aligning the idler's lifespan with other undercarriage components. By rotating the shaft within fixed bushings, there is reduced contact stress and abrasion.

• Cuts bearing stress by half, lightening bearing loads and prolonging component durability
• Robust rock guards safeguard against harm caused by dirt and debris
• Reduces mining operational expenses by enhancing crawler system longevity and minimizing unexpected downtimes
• Boosts track efficiency through expanded bearing surface and improved lubrication distribution

• Splined connection between idler and shaft increases reliability
• Bearing blocks with bushings can be removed without breaking the track
• Dedicated lube injectors supply lubricant to critical wear surfaces

• 50% less bearing stress reduces bearing loads and increases component life
• Rotating shaft within stationary bushings produces less contact stress and wear
• Heavy-duty rock guard prevents dirt and debris from damaging parts

An extended crawler system lifespan leads to fewer change-out intervals, thereby minimizing employee exposure to safety hazards associated with system and component replacements.

The models above are for reference only. We can supply more products as per your requirements. Please contact us with your specific needs.

YinTai Parts is a professional manufacturer and supplier of excavator idlers in China with over 30 years of experience. We guarantee high quality and superior performance for all our products.