The slewing bearing is a massive, precision component that connects the excavator's upper structure (house) to its undercarriage, allowing for 360-degree rotation. On a powerful machine like the 345D, it constantly withstands immense axial, radial, and moment loads. Proper maintenance is not just recommended; it is critical for machine stability, performance, and avoiding extremely costly replacements.
This 353-0490 slewing bearing is used for 345D excavator.
Related part number:
3B-8489
227-6075
148-4685
