China HITACHI EX200-5 SWING DEVICE SLEW BOX MOTOR OIL SEAL 68 X 46 X 12 MM (OEM HI 667618 FA 71467154) | Tonkee®

The OEM part number for this oil seal is HI 667618, and it can also be identified by the alternate part number FA 71467154.

These part numbers are essential for ensuring compatibility and replacement accuracy when maintaining or repairing the excavator.

The dimensions of 68 x 46 x 12 millimeters are critical to its function. The 68-millimeter outer diameter ensures that it fits snugly within the housing, preventing any external contaminants from entering the system. The 46-millimeter inner diameter is designed to fit precisely around the motor or shaft, creating a tight seal. The 12-millimeter thickness of the seal is designed to provide durability and longevity, as it needs to withstand the rigors of the excavator's operation.

Oil seals like this one are typically made from high-quality materials such as rubber or elastomers. These materials are chosen for their ability to resist wear, temperature fluctuations, and exposure to hydraulic fluids. This ensures that the seal can maintain its integrity over an extended period, even in demanding operating conditions.

The primary function of the oil seal is to prevent hydraulic fluid from leaking out of the swing device or slew box motor. Hydraulic fluid is essential for the operation of various components in the excavator, including the swing mechanism. Any leakage can result in decreased efficiency, increased maintenance costs, and potentially catastrophic failures.

In addition to preventing fluid leakage, the oil seal also serves to keep contaminants, such as dirt and debris, from entering the hydraulic system.

This is vital as foreign particles can cause damage to hydraulic components and lead to costly repairs.

Replacing this oil seal should be done with care and precision to ensure proper functionality. It is essential to adhere to the OEM specifications and use genuine Hitachi parts to maintain the excavator's reliability and performance.

Regular inspection and maintenance of hydraulic components, including oil seals, are crucial to prolonging the life of the equipment and avoiding costly downtime. This includes checking for signs of wear, damage, or leakage and addressing any issues promptly.

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