The slewing bearing on a machine of the Caterpillar 330's size and class is engineered for maximum durability, precision, and performance. Its key features include:
Robust Construction and Large Diameter:
It is a massive, single-row ball bearing (or sometimes a cross-roller design) manufactured from high-strength, forged alloy steel. Its large diameter is designed to handle the significant overturning moments of the 330.
High Load Capacity:
It is specifically designed to withstand a combination of extreme loads:
Axial Loads: Vertical forces from the weight of the upper structure and lifted loads.
Radial Loads: Horizontal forces encountered during side-loading or uneven ground operation.
Moment Loads: Tilting or overturning forces created during digging and lifting.
This 393-6549 slewing bearing is used for 336 336GC 336E 336F excavator.






Related part number:
3B-8489
227-6074
148-4685
352-7064












