Structural Connection and Massive Load Support:
It acts as the central structural link, connecting the massive upper frame (house) to the undercarriage.
Its primary role is to support the entire weight of the upper structure, including the cab, engine, counterweight, and the heavy-duty attachment system.
It is engineered to withstand the extreme forces encountered by a large excavator, including immense axial loads (vertical weight), radial loads (side forces), and severe moment loads (tilting forces from deep digging and heavy lifting).
This 353-0487 slewing bearing is used for 336D 330D 336D2 excavator.
Related part number:
367-8346
367-8358
