800144926 rolling needle XCMG XE2000 excavator spare parts

XCMG XE2000 Excavator Needle Roller (Part No. 800144926): Wear-Resistant Support Unit for Precision Transmission

The XCMG XE2000 mining excavator, with its 192,000kg operating weight, 810kW imported engine, and 10-14m³ large bucket capacity, demonstrates superior transmission performance in heavy-duty mining operations worldwide. The needle roller (part no. 800144926), as a key component of the equipment’s precision transmission system, is the core support unit for achieving efficient force transmission between the shaft and bearings, directly affecting the smoothness and reliability of the entire machine’s power transmission.

This needle roller is precision-rolled from high-strength, high-carbon chromium bearing steel, possessing extremely high hardness and a uniform metallographic structure. The surface undergoes ultra-precision grinding and polishing, with a roughness controlled below 0.1μm. Combined with strict dimensional tolerance control, this ensures that each needle roller can evenly bear the load. Facing the high-frequency impacts and continuous friction of transmission systems in mining operations, this device effectively resists wear and deformation, preventing increased transmission clearance or jamming due to needle roller failure, and providing durable and wear-resistant support for precision transmission.

In terms of design, it was specifically developed based on the structural parameters of the XE2000 transmission components, with precise calibration of length, diameter accuracy, and cylindricity. Utilizing an optimized length-to-diameter ratio design, it achieves a larger contact area within a limited installation space, significantly improving load-bearing capacity and capable of withstanding radial loads up to [specific value] kN. The ends of the needle rollers feature rounded transitions, reducing contact stress with the flanges and lowering operating noise and energy loss.

Relying on XCMG’s advanced manufacturing processes, this needle roller undergoes multiple rigorous quality control processes. A continuous bright quenching process ensures uniform overall hardness, with a core hardness of 58-62 HRC and a surface hardness of 62-65 HRC. Strict dimensional sorting ensures that the diameter deviation of needle rollers in the same batch is controlled within 0.002 mm, guaranteeing uniform stress after assembly. Each needle roller undergoes magnetic particle testing to eliminate potential defects such as internal cracks.

The performance of the needle roller directly affects the efficiency and lifespan of the transmission system. By optimizing force distribution from point contact to line contact, it reduces pressure per unit area, lowers the coefficient of friction, and improves power transmission efficiency. Uniform load distribution effectively avoids localized wear on shafts and bearings, extending the service life of transmission components and reducing equipment maintenance costs. In key transmission components such as the excavator’s slewing mechanism and travel drive, stable needle roller support ensures stable power output and guarantees precise and controllable operation.

Choosing XCMG XE2000 excavator needle rollers (part number 800144926) not only provides you with high-precision, wear-resistant, and reliable transmission components, but also allows you to enjoy timely parts supply and professional technical support through XCMG’s global service network. Let this wear-resistant support unit for precision transmission lay a solid foundation for the efficient operation of your mining equipment’s transmission system, contributing to continuous and efficient production.

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800169284 damper XCMG XE2000 excavator spare parts

1 800168997 3 BOLT
2 800167052 3MAT
3 800144926 1 ROLLING NEEDLE
4 800169071 1 CRANKSHAFT BELT PULLEY
5 800167053 8MAT
6 800167055 1 ROLL PIN
7 800167056 8 BOLT
8 800167057 1 PROTECTION COVER
9 800167058 1 CRANKSHAFT ADAPTER
10 800167059 8 BOLT
11 800167060 1 CRANKSHAFT GASKET
12 800168975 1 VISCOUS DAMPING ABSORBER
13 800167062 1 VISCOUS DAMPING ABSORBER