Topvelsun Swing Bearing 206-25-00301 Swing Circle for Komatsu PC220-7 PC220-8 PC230-8

Engineered Rotational Power for Your Komatsu Fleet

When your 22-to-24-ton Komatsu excavator or forestry log loader develops excessive upper-structure wobble, gear grinding, or rotation binding, it puts your entire operation at risk. The 206-25-00301 Swing Bearing is heavily fortified to handle the immense dynamic loads of both mass earthmoving and severe forestry applications, restoring smooth, precise 360-degree rotation to your machine while protecting your swing motor from collateral damage.

The 206-25-00301 Performance Advantage

• Exact Drop-In Integration:Engineered to mirror OEM Komatsu blueprints, this heavy-duty swing circle provides a perfect, zero-modification drop-in fit. It directly replaces part numbers 206-25-00301 and 206-25-00311, ensuring that alignment pins, bolt hole patterns, and pinion gear mesh are 100% factory-spec.

  
  

• Forestry & Mass Excavation Ready:Widely utilized in specialized Log Loaders (such as the PC220LL-8) as well as standard excavators (PC220-8, PC240-8K), this bearing is built to withstand extreme lateral torque. Deep-induction hardened raceways prevent premature spalling under maximum bucket and grapple loads.

  
  

• Severe-Duty Sealing:Equipped with robust, industrial-grade environmental lip seals that retain crucial lithium lubrication while aggressively locking out abrasive rock dust, mud, and destructive forestry debris.