Product Specification

Excavator Komatsu PC650-8 OEM Front Idler Group Heat Treatment Undercarriage Spare Parts Forge Steel 

1. What is a Idler?

    The CHT idler delivers strong durability and safety via advanced design and precision manufacturing. Its keyed joint between idler and axle expands bearing contact, boosts torque transmission, and syncs the idler’s life with other undercarriage parts (avoiding uneven wear), while the axle’s rotation in fixed bearings cuts friction to extend track system life.

    Made via alkali phenolic resin sand casting or sodium silicate-bonded sand casting (for robust, dimensionally stable heavy-duty parts), it undergoes specialized heat treatment—achieving HRC 48–58 surface hardness and a 4–6mm hardened layer (HRC 45)—for strong impact/wear resistance in harsh mining/construction sites.

    Final finishing on a CK5110 large CNC vertical lathe ensures precise dimensions and smooth surfaces for easy assembly. Longer track life reduces replacements, lowering workers’ maintenance safety risks—linking performance to safety.

 
2. Idler Characteristic

• 2.1 Tech-Driven Durability: Built to Outlast

  • 50% lower bearing pressure: Sharply cuts bearing load, doubling component lifespan from the root and eliminating the hassle of frequent replacements—avoiding unplanned downtime caused by part swaps.

  • Splined idler-shaft connection: Syncs the idler’s service life with other critical undercarriage parts, effectively preventing uneven wear that would otherwise shorten the entire system’s lifespan and boosting overall reliability.

  • Heavy-duty rock guard: Acts as a rugged barrier against dirt, rubble, and debris, shielding vulnerable components from damage in dusty, gravel-filled mining or construction sites—warding off costly repairs and premature part failures.

  2.2 Efficiency-Focused Design: Minimize Downtime

  • Detachable bushed bearing blocks: Enable quick removal and servicing without disassembling the track, slashing maintenance time by 40%. The hassle-free operation accelerates repair processes, getting equipment back to work faster.

  • Dedicated lubrication injectors: Precisely deliver lubricant to high-wear surfaces, warding off friction-induced failures that often cause sudden downtime—keeping daily operations consistent and on schedule.

  • Expanded bearing surface + optimized oil flow: Enhances track stability and responsiveness, ensuring steady performance even in rough, uneven mining conditions where operational consistency is key to output.

  2.3 Cost-Smart Engineering: Lower TCO

  • Rotating shaft + stationary bushings: Reduces contact friction and wear, cutting down on profit-eating unplanned stoppages that disrupt production rhythms and add hidden costs.

  • Prolonged track life: Lowers total operational expenses by reducing both downtime losses and the frequency of part replacements—delivering long-term savings for mining operations.

  • 50% less bearing stress: Translates directly to fewer bearing failures, slashing not just parts procurement costs but also labor expenses tied to repairs.

3. Design/Structure/Main Dimensions of Installation

 
 
4. Production Processes
 

 
5. Hot Sale Products
 

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6. Our Advantages
 

• World-class quality

• Factory sale directly with reasonable price

• 35 years' experience in Excavator & Bulldozer spare parts manufacturing

• Fast delivery within 30 days after contract established

• Professional sales team, quality inspection and report, maritime logistics guidance

• After-sale services: video technical support, 24h online support