Hot sale HITACHI EX100 120-1 SWING DEVICE SLEW BOX GEAR PLANETARY2 (BI-METAL) (OEM HI 9727159) | Tonkee®

The swing device, also known as the slew box, is responsible for enabling the excavator's upper structure, which includes the operator's cab, engine, and hydraulic components, to rotate horizontally.

This rotation is essential for the excavator to position its digging equipment accurately and efficiently during excavation tasks. The slew box gear planetary 2, with its bi-metal construction, is a key element within this system.

The term "bi-metal" implies that this component is made from two different types of metal materials. This construction is chosen for its durability and wear resistance, as it allows the component to withstand the extreme forces and friction generated during the excavator's operation. The specific metals used in the construction of this part may vary depending on the manufacturer's design and engineering specifications.

The OEM part number HI 9727159 is a unique identifier provided by Hitachi, ensuring that replacement parts are compatible with their excavators. This part's compatibility with the Hitachi EX100-1 and EX120-1 excavator models is crucial, as using non-OEM or incompatible parts can lead to performance issues and potential damage to the machinery.

The planetary gear system within this component is a critical feature.

Planetary gears consist of a central "sun" gear, multiple "planet" gears that rotate around the sun gear, and an outer "ring" gear. This arrangement allows for a compact and efficient way to transfer power while distributing loads evenly, ensuring smooth and reliable rotation of the slew box. In the case of the HITACHI EX100-1 120-1 Swing Device Slew Box Gear Planetary 2, this gear system is designed to handle the substantial torque and stress associated with excavator operations.

Maintaining and replacing worn or damaged components like the swing device slew box gear is essential for ensuring the excavator's continued functionality and safety. Routine maintenance and inspection are critical to identify signs of wear and tear, such as unusual noises, reduced performance, or visible damage, which may indicate the need for replacement.

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