Shop HITACHI EX120-5 TRAVEL DEVICE FINAL DRIVE MOTOR BRAKE SEAL O-RING (OEM HI 4244542) | Tonkee®

Fluid Containment: The excavator's final drive motor relies on hydraulic fluid for its operation.

The O-ring prevents leakage of this fluid, ensuring that the motor functions optimally.

Lubrication Retention: In addition to hydraulic fluid, the final drive motor contains lubricants that are essential for reducing friction and wear on moving parts. The O-ring helps keep these lubricants from escaping, preserving the motor's longevity.

Environmental Impact: Hydraulic fluid leakage can be harmful to the environment and may result in soil contamination or other ecological issues. The O-ring helps prevent such environmental damage.

The O-ring, made of durable and resilient materials, is designed to create a secure and tight seal between two mating components within the final drive motor assembly. It fits snugly into a groove or gland on one of the components and compresses when the two parts are assembled. This compression creates a reliable seal that prevents the escape of fluids.

The O-ring operates under varying conditions, including high pressure, temperature fluctuations, and constant mechanical stress. Therefore, it must be manufactured to withstand these challenging conditions, ensuring the long-term reliability of the excavator.

Material: The O-ring is typically constructed from high-quality rubber or elastomeric compounds known for their resistance to hydraulic fluids, lubricants, and wear.

These materials are selected for their durability and sealing properties.

Size: The exact dimensions of the O-ring may vary depending on the specific requirements of the final drive motor assembly. It is essential to ensure that the O-ring matches the OEM specifications to guarantee a proper fit and seal.

Sealing Performance: The O-ring is designed to provide a tight and effective seal, even under high pressures and varying temperatures. It should maintain its sealing capabilities throughout the excavator's operational lifespan.

Compatibility: The OEM part number, HI 4244542, ensures that this O-ring is specifically designed for use in Hitachi EX120-5 excavators. Compatibility is crucial to ensure a perfect fit and optimal performance.

Installation: Proper installation is essential to the O-ring's effectiveness. It should be installed by trained technicians who follow manufacturer guidelines and use appropriate tools.

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