Excavator Wheel Undercarriage Spare Parts For Hitachi EX1200 Durable  Forge Steel Front Idler Assembly 

The CHT idler boasts exceptional durability and safety, backed by advanced design and precision manufacturing. Its keyed joint between idler and axle widens the bearing contact area, enhances torque transmission, and aligns the idler's lifespan with other undercarriage components—avoiding uneven wear—while the axle's rotation inside fixed bearings reduces friction, further extending the track system's service life.

It's manufactured via either alkali phenolic resin sand casting or sodium silicate-bonded sand casting—processes ideal for crafting heavy-duty parts that are robust and dimensionally stable. After specialized heat treatment, it achieves HRC 48-58 surface hardness and a 4-6mm hardened layer (HRC 45), equipping it with strong impact and wear resistance for harsh mining or construction sites.

Final finishing on a CK5110 large-scale CNC vertical lathe guarantees precise dimensional accuracy and smooth surface finish, enabling seamless assembly. The extended track life cuts down on replacements, reducing workers' exposure to safety hazards during maintenance—tying the idler's long-lasting performance to enhanced workplace safety.

The table lists only a limited number of models; please consult our staff for more product models.

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