Single-Row Ball Bearing Design:
The 301.5 typically utilizes a cost-effective and efficient single-row ball bearing design. This design is perfectly suited for the machine's size and duty cycle, handling combined loads (axial, radial, and moment) efficiently.
Integrated Gear Teeth:
The slewing ring's inner or outer ring features precisely machined internal or external gear teeth. These teeth mesh with the pinion gear of the hydraulic swing motor, directly transferring power for smooth and precise rotation.
This 578-3991 slewing bearing is used for 301.5 301.6 excavator.
Related part number:
226-2125
535-9006
225-5852
546-5942
8T-4121
