275400253 XCMG GR2605 motor grader balance box assembly

275400253 XCMG GR2605 motor grader balance box assembly

The 275400253 balance box assembly is a core load-bearing and balancing component of the construction machinery’s walking system. Integrating the box body, balance shaft, bearings, and other core components, it is used to distribute equipment weight, buffer road impacts, and maintain stable movement. It is suitable for heavy-duty and complex road conditions, offering stable operation and wear resistance.

Core Technical Parameters

1. Model: 275400253, a balance box assembly specifically for construction machinery, compatible with the host machine’s walking system standard interface.

2. Compatible Media: No specific media required; its core function is load-bearing, balancing, and impact buffering for the walking system.

3. Material: Box body (Q355B carbon steel), balance shaft (42CrMo alloy steel), heat-treated for high strength, bending resistance, and deformation resistance.

4. Operating Temperature: -40℃~120℃, suitable for harsh outdoor working environments such as high and low temperatures, dust, mud, and bumpy conditions.

5. Surface Treatment: Powder-coated/rust-proof coating on the housing; quenched and blackened balance shaft for rust prevention, corrosion resistance, and wear resistance.

6. Specifications and Dimensions: Housing dimensions and balance shaft diameter are perfectly matched to the main unit mounting location; bolt hole positions are precise, requiring no additional adjustments.

7. Load Capacity: Suitable for heavy-duty conditions, effectively distributing the overall weight of the equipment and withstanding road impact loads, making it less prone to damage.

8. Fitting Precision: All components are tightly assembled; the balance shaft, bearings, and housing have reasonable clearances, ensuring smooth rotation without jamming or abnormal noise.

Core Functions and Roles

As the core balancing component of the walking system, it evenly distributes the equipment’s weight, preventing excessive force on one side of the wheels and ensuring stable equipment movement; it buffers road bumps and impacts, absorbs vibrations during operation, and protects the walking system, tires, and main equipment structure; through the cooperation of the balance shaft and bearings, it achieves flexible rotation, adapting to complex road conditions and improving equipment stability; its high strength and wear-resistant properties make it suitable for heavy-duty, high-frequency operations, extending the overall service life of the walking system.

Suitable Scenarios

Widely used in various construction machinery such as excavators, loaders, bulldozers, and road rollers, suitable for heavy-duty, bumpy, and complex road conditions in infrastructure construction, mining, earthwork engineering, and road construction. It is an indispensable core component of the equipment’s walking system, directly affecting the equipment’s driving stability and operational safety.

Common Faults and Troubleshooting

When the balance box makes abnormal noises, check for bearing wear, insufficient lubrication, or loose components. Add special grease, tighten connections, and replace bearings if wear is severe. When the box body is deformed or cracked, it is often caused by heavy-load impacts or collisions; the balance box assembly must be replaced immediately to avoid affecting equipment balance. When the balance shaft is worn or corroded, clean the corroded areas, apply rust prevention treatment, and replace the balance shaft if wear exceeds the standard. When the walking is off-center or unstable, check the component fit clearance and balance shaft coaxiality, correct the installation accuracy, and replace worn parts.

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1 800361422 Wheel assembly – Front left wheel
2 275400253 Balance box assembly
3 800361418 Wheel assembly – Front right wheel
4 800361419 Wheel assembly – Rear right wheel
5 800361421 Drive axle final drive reduction gear assembly
6 800361903 Wheel assembly – Rear left wheel

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