The slewing bearing, also known as the swing circle or slewing ring, is a critical component in the Caterpillar 329D excavator. It serves as the pivotal connection between the upper structure (house) and the undercarriage, enabling 360-degree continuous rotation under heavy loads. Its performance is fundamental to the machine's stability, precision, and productivity.
This 227-6088 slewing bearing is used for 323D 320D 320C excavator.
Related part number:
227-6073
3B-8489
