Slewing Ring Tech Hub & Technical Resources

Internal Gear, External Gear & Gearless Slewing Bearings:

Tonnage-Based Slewing Bearing Selection Quick

All CAT excavators are equipped with standard external gear slewing bearings. The tooth module adopts unified imported standard, with reinforced heat treatment at the tooth root to match the output gear of the original slewing motor. The tooth surface quenching depth reaches 2.5-3mm, delivering stronger fatigue resistance under heavy-duty crushing conditions.