China HITACHI EX100 120-1 TRAVEL DEVICE FINAL DRIVE NEEDLE ROLLER BEARING PLANETARY 1 (OEM HI 4177007) | Tonkee®

The OEM (Original Equipment Manufacturer) part number for this essential bearing is HI 4177007.

It plays a pivotal role in supporting the planet gears within the final drive assembly and facilitating the smooth rotation of these gears. As a result, the planetary gears transfer torque from the hydraulic motor to the tracks, allowing the excavator to move forward and backward.

The needle roller bearing is specifically designed to handle high loads and endure the stresses associated with the excavation process. It consists of needle-like cylindrical rollers arranged in a cage, which allows for a greater load-bearing capacity while maintaining a compact size. This design choice is crucial to ensure the bearing can withstand the substantial forces encountered during excavation operations.

The dimensions and specifications of the Planetary 1 needle roller bearing are carefully engineered to fit precisely within the final drive assembly. This precision fit is essential to guarantee smooth and efficient power transmission, minimizing energy loss and wear and tear on the components. The HI 4177007 bearing is designed to provide longevity and durability in demanding construction environments, ensuring that the excavator can operate reliably over extended periods.

Maintaining the functionality of the final drive assembly, including the Planetary 1 bearing, is crucial for the overall performance of the excavator.

A properly functioning bearing contributes to smooth and precise track movements, allowing operators to navigate the machine with ease and accuracy. Furthermore, it helps distribute the load evenly across the drive system, reducing the risk of component damage and extending the equipment's lifespan.

Using genuine OEM parts like the HI 4177007 needle roller bearing is highly recommended when replacing or servicing components in the final drive assembly. OEM parts are engineered to meet the manufacturer's strict quality standards and specifications, ensuring compatibility, performance, and reliability. This reduces the likelihood of compatibility issues that may arise when using aftermarket alternatives.

Routine maintenance and inspections of the travel device final drive, including the Planetary 1 bearing, are essential to prevent unexpected downtime and costly repairs. Timely replacement of worn or damaged components ensures the excavator's continued operational efficiency and safety on construction sites.

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