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Final Drive of Excavator Parts

May.20,2026

    The final drive consists of a travel motor (axial piston type, converting hydraulic energy into rotational kinetic energy) and a reduction unit (two-stage gear reduction). There are left and right final drives, which directly drive the tracks for forward, reverse, and turning movements.

    The motor is structurally similar to a pump. As the power output device of the hydraulic system, it is driven by high-pressure hydraulic oil to generate torque and continuous rotation instead of pushing hydraulic oil.

    The reduction part mainly uses two-stage planetary gears for speed reduction.

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