Shop HITACHI EX100 120-1 SWING DEVICE SLEW BOX PROPELLER SHAFT (OEM HI 2023963) | Tonkee®

The slew box propeller shaft is a fundamental part of the swing system in the Hitachi EX100-1 and EX120-1 excavators.

This shaft plays a crucial role in transferring power from the excavator's engine and hydraulic system to the swing motor, enabling the upper structure of the excavator to rotate smoothly. This rotation is essential for positioning the excavator's arm and bucket accurately, making it an integral part of the machine's efficiency and productivity.

The propeller shaft is made from high-strength materials, often steel or alloy steel, to withstand the heavy loads and stresses that it encounters during excavator operation. It is precision-engineered to meet Hitachi's stringent quality standards, ensuring durability and reliability in demanding working conditions.

The OEM (Original Equipment Manufacturer) part number HI 2023963 signifies that this propeller shaft is a genuine replacement part produced by Hitachi. Using OEM parts is crucial for maintaining the excavator's performance and longevity, as these parts are designed to meet the exact specifications and tolerances required for optimal functioning.

The dimensions of the propeller shaft, including its length and diameter, are critical to ensure a proper fit within the swing system. Any deviation from these specifications can lead to alignment issues and premature wear, potentially causing costly downtime and repairs.

In addition to its physical specifications, the surface finish and coating of the propeller shaft are also essential considerations.

Many OEM propeller shafts are treated with special coatings or finishes to enhance their resistance to corrosion, abrasion, and wear, further extending their lifespan and reducing maintenance requirements.

Proper lubrication is vital to ensure the smooth operation of the propeller shaft and the swing system as a whole. The shaft typically includes lubrication points that must be adequately serviced and maintained according to the manufacturer's recommendations. Neglecting lubrication can lead to increased friction, heat buildup, and premature wear, potentially causing catastrophic failure.

The propeller shaft is connected to the swing motor on one end and the swing gearbox on the other. This connection must be secure and properly aligned to ensure efficient power transmission and prevent unnecessary stress on the components. Regular inspection and maintenance of these connections are essential to prevent issues such as misalignment or loosening.

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