208-25-61100 208-25-00100 Swing Bearing for komatsu PC400-6 PC400-7 PC400-8

Restore Rotational Power to Your Komatsu Mass Excavators

In severe-duty mass excavation, heavy demolition, and continuous quarrying, your 40-to-45-ton Komatsu carriers bear catastrophic lateral and radial loads. When swinging fully loaded rock buckets causes the original swing circle to wear, it results in dangerous cab wobble, severe gear grinding, and unacceptable revenue loss. Engineered specifically to meet and exceed original factory heavy-duty specifications, the 208-25-61100 Swing Bearing restores flawless, 360-degree rotational stability to your massive equipment.

The 208-25-61100 Engineering Advantage

• Exact Multi-Generation Integration: Performing a major upper-structure split on a 45-ton carrier is a massive undertaking that leaves zero room for dimensional errors. This heavy-duty swing circle directly replaces OEM part numbers 208-25-61100, 208-25-61101, 208-25-00100, and 208-25-A3100 without custom fabrication. It guarantees precise bolt-hole alignment and a vibration-free pinion mesh across Komatsu Dash-6, Dash-7, and Dash-8 generations.

  
  

• Mining & Quarry Ready: Whether you are pushing a PC400-7 in heavy dirt or operating a massive PC450-8 in a rock quarry, this bearing is built to handle extreme torque. Deep-induction hardened raceways prevent premature gear spalling and tooth stripping under maximum lifting capacities.

  
  

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