Hitachi EX60 Travel Motor Head

Hitachi EX60 Travel Motor Head

2 week ago

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Ningbo Hengnuo Hydraulic Drive Co.,Ltd

 3 year year

Product details

1. Definition & Function

TheTravel Motor Headis the core driving component of an excavator’s track propulsion system, belonging to theFinal Drive Assembly.

• Role: Converts hydraulic pressure from the pump into mechanical torque to drive track rotation, enabling excavator movement, steering, and climbing.

• Location: Mounted at the end of each track frame, directly connected to the track sprocket.

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2. Structural Components

The Hitachi EX60 Travel Motor Head typically includes the following key parts:

1. Hydraulic Motor

• Type: Axial piston variable-displacement motor (adjusts displacement for varying loads).

• Function: Transforms hydraulic energy into rotational mechanical energy.

• Features: High torque output, shock resistance, and suitability for heavy-duty operations.

2. Planetary Gearbox

• Role: Reduces speed and increases torque, converting the motor’s high-speed rotation into the low-speed, high-torque required for tracks.

• Structure: Usually two- or three-stage planetary gear transmission for high efficiency and reliability.

3. Brake System

• Type: Wet multi-disc brake (hydraulically released, spring-applied).

• Function: Automatically engages when the excavator stops to prevent track slippage.

4. Bearings & Seals

• High-load roller bearings: Support rotating components in the gearbox.

• Seals: Prevent mud, sand, and moisture ingress, extending service life.

5. Housing & Mounting

• Material: High-strength cast iron or aluminum alloy to withstand impacts and vibrations.

• Interfaces: Bolted to the track frame and connected to hydraulic lines.

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3. Technical Specifications (Example)

【表格】

Parameter Range

Applicable Model Hitachi EX60 Series Excavators

Hydraulic System Pressure 25–30 MPa (varies by model)

Max Output Torque 8,000–12,000 N·m (estimated)

Reduction Ratio 20:1 – 30:1 (gear design-dependent)

Weight Approx. 80–120 kg (motor + gearbox)

Lubrication Gear oil (requires periodic replacement)

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Ningbo Hengnuo Hydraulic Drive Co.,Ltd

 Audited supplier

3 year

Address: Ningbo, China

Main Product: hydraulic motor, gear box, hydraulic pump, hydraulic valve , hydraulic winch , hydraulic system

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