800169044 idler wheel bracket XCMG XE2000 excavator spare parts

XCMG XE2000 excavator idler wheel bracket (part number 800169044): Provides stable support and ensures efficient operation of the transmission system.

As a key supporting component of the XCMG XE2000 excavator’s transmission system, the idler pulley bracket (part number 800169044) has the core function of fixing the idler pulley and adjusting the tension of the transmission belt. It is adapted to the engine’s front-end transmission system and undertakes the important responsibility of guiding the direction of power transmission and reducing belt wear. In high-intensity operation scenarios such as mining and infrastructure construction, it is a “solid fulcrum” that ensures stable equipment transmission and prevents belt slippage or breakage.

Original factory precise fit, installation without deviation

Manufactured strictly according to the original design standards of XCMG XE2000 excavators, the mounting hole accuracy reaches H7 level, the flatness error of the contact surface with the engine cylinder block is ≤0.03mm, and the perpendicularity error between the idler wheel mounting shaft and the reference surface is ≤0.02mm, ensuring that the center distance deviation between the idler wheel and the pulley is controlled within ±0.05mm. A case study of transmission system maintenance for an XE2000 fleet shows that after replacing the non-standard bracket with this original idler wheel bracket, the belt misalignment rate decreased by 95%, and the contact between the idler wheel and the belt increased to over 98%, avoiding abnormal belt wear or abnormal noise problems caused by misalignment.

High-strength material, resistant to loads and durable.

Manufactured from Q345B high-strength steel using CNC stamping and robotic welding, with reinforced ribs added to key load-bearing areas, and an overall structure optimized for mechanical strength, achieving a bending strength of 580MPa. It can withstand radial loads (≤6kN) and belt tension (≤4kN) generated during idler wheel operation. The surface is treated with an electrophoretic anti-rust coating, with over 600 hours of salt spray testing, resisting engine compartment temperatures (≤180℃), oil stains, and rainwater corrosion. The structure remains stable and undeformed within a temperature range of -40℃ to 160℃. Actual test data shows that its service life is four times that of ordinary welded steel plate brackets, and it can be stably used for over 38 months under an average of 12 hours of high-intensity operation per day, reducing downtime losses caused by frequent replacements.

Stable support ensures transmission efficiency

Precision machining ensures the surface roughness of the idler wheel mounting shaft is ≤0.8μm, providing stable support for the idler wheel bearing and effectively reducing the vibration amplitude during idler wheel operation (≤0.3mm), maintaining a transmission efficiency of over 99%. Simultaneously, the bracket provides space for belt tension adjustment, which, in conjunction with XCMG’s original tensioning mechanism, allows for precise control of belt tension (recommended value 50-70N), preventing excessive tightness from causing bearing wear or excessive looseness from causing slippage. In a high-temperature mining project in Xinjiang, XE2000 excavators equipped with this idler wheel bracket experienced no drive belt slippage during continuous summer operation, ensuring stable engine power transmission. Transmission issues did not cause a decrease in the efficiency of the cooling fan or hydraulic pump, and the average daily operating time remained above 14 hours.

Easy to install, cost-effective

No special positioning tools are required; installation can be completed using standard bolts. The bracket surface is clearly marked with part numbers, installation baselines, and bolt tightening torque (recommended value 30-40 N·m), facilitating quick identification and standardized operation by maintenance personnel and reducing the risk of incorrect installation. From a long-term cost perspective, its high durability and low failure rate can reduce bracket procurement and replacement expenses for the XE2000 fleet by 45%. For large fleets using it in bulk, they can enjoy XCMG’s original bulk purchase discounts, making the cost advantage even more significant.

Select core advantages

Original factory quality: XCMG standardized production, meeting the stringent support requirements of the transmission system;
Precise fit: Dedicated to the XE2000 engine transmission system, installation error-free;
Robust and load-bearing: High-strength steel + optimized structure, adaptable to harsh working conditions;
High-efficiency transmission: Stable support ensures belt fit and improves power transmission efficiency;
Economical and practical: easy to install, long lifespan, and reduced overall operation and maintenance costs.

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8 800167008 DOWELRING
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11 860149559 MAT
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14 800169114 IDLERWHEELCOVER
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16 800169132 NUT
17 800168931 IDLERSHAFT
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21 860149573 OILSEAL
22 800168947 BOLT
23 800168886 BUTTERNOZZLE
24 800169029 COLUMNPLUG
25 800169079 MAT
26 860149578 ORING
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28 860149575 PIVOT
29 860149576 SLEEVEPIPE
30 800169295 TORSIONSPRING
31 800168983 DRIVENBARCOVER
32 800168919 MAINSHAFTSUPPORT
33 800169298 BEARINGBUSHING