Shop HITACHI EX100 120-5 TRAVEL DEVICE FINAL DRIVE PIN SPRING PLANETARY 2 (OEM HI 4144020) | Tonkee®

The "pin spring planetary 2" in the Hitachi EX100-5 and EX120-5 final drive assembly is a precision-engineered component designed to transmit power from the excavator's hydraulic system to the track system, enabling the machine to move forward or backward.

It is a part of the planetary gear mechanism, which is a common design in final drives for heavy machinery like excavators due to its efficiency and durability.

This component is manufactured by Hitachi as an Original Equipment Manufacturer (OEM) part, ensuring compatibility and quality assurance. The part number HI 4144020 helps in easy identification and replacement when necessary, ensuring that the excavator continues to perform optimally.

The "pin spring planetary 2" consists of several key elements, including pins, springs, and planetary gears. These elements work together to transfer torque from the hydraulic motor to the track system, allowing for precise control of the excavator's movement. The pins and springs are designed to maintain proper meshing and engagement of the planetary gears, ensuring smooth and efficient power transmission.

One of the crucial specifications of the "pin spring planetary 2" is its material composition. Typically, these components are constructed from high-strength alloy steels or other durable materials that can withstand the heavy loads and stresses encountered during excavator operation. The specific material used may vary depending on the manufacturer's design and engineering choices.

Another important specification is the dimensional accuracy of the component.

Precise machining and tight tolerances are essential to ensure that the pins, springs, and planetary gears fit together seamlessly and operate smoothly. Any deviation from the specified dimensions can lead to premature wear and reduced efficiency of the final drive.

The "pin spring planetary 2" also undergoes heat treatment processes to enhance its hardness and wear resistance. Heat treatment methods such as carburizing or induction hardening are commonly employed to increase the component's longevity and resistance to wear and tear in demanding operating conditions.

Furthermore, the component is designed to be easily replaceable when necessary. This ensures that maintenance and repair procedures can be performed efficiently, minimizing downtime and maximizing the excavator's productivity on the job site.

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