The slewing bearing, also known as the swing circle or rotary connection, is a critical component located at the center of any excavator, including the Caterpillar 330. It serves as the pivotal connection between the excavator's upper structure (house - containing the cab, engine, and hydraulics) and the undercarriage (track frame and tracks).
This 505-4926 slewing bearing is used for 330 excavator.
Related part number:
3B-8489
352-7064
227-6073
148-4685
