800169281 camshaft and gear XCMG XE2000 excavator spare parts

XCMG XE2000 Excavator Camshaft and Gear (Part No. 800169281): Precision Transmission Assembly for the Valve Train

The XCMG XE2000 mining excavator, with an operating weight of 192,000 kg, an 810 kW imported engine, and a large bucket capacity of 10-14 m³, continuously delivers powerful performance in heavy-duty mining operations worldwide. The camshaft and gear (part no. 800169281), as the core transmission assembly of the engine’s valve train, is a key component combination controlling the timing and precision of valve opening and closing, directly determining the engine’s fuel combustion efficiency, power output stability, and overall machine reliability.

This camshaft and gear assembly is precision-manufactured using high-strength alloy structural steel. The camshaft body undergoes integral forging and tempering treatment, possessing excellent bending strength and wear resistance. The gears are processed using carburizing and quenching, achieving a tooth surface hardness of 58-62 HRC, while the tooth core maintains good toughness, capable of withstanding continuous meshing impacts under high-frequency engine operation. Facing the high-temperature and high-pressure environment of full-load engine operation in mining, this system effectively resists failure risks such as camshaft wear and gear pitting, ensuring long-term stable operation of the valve train.

In terms of design, relying on XCMG’s engine dynamics simulation platform, the camshaft profile curve, gear module, and transmission ratio have been optimized through 2000 hours of bench testing. The camshaft adopts a precise peach-shaped profile design, ensuring that the valve lift, opening duration angle, and engine operating conditions are perfectly matched, improving intake efficiency by more than 8%. The gears adopt a high-precision involute tooth profile and edge-modified design, controlling the transmission ratio error within 0.01%, and maintaining a stable meshing clearance with the crankshaft gear within 0.03-0.05mm, ensuring valve timing accuracy within ±0.5° crankshaft angle.

Relying on XCMG’s advanced manufacturing processes, this assembly has undergone rigorous precision machining and assembly testing. The camshaft is CNC ground, with cam profile tolerance controlled within 0.01mm and journal roughness ≤0.4μm. The gears utilize a CNC hobbing and shaving composite process, with cumulative pitch error ≤0.02mm, ensuring smooth, shock-free transmission. After assembly, the assembly undergoes dynamic balancing and valve timing detection to ensure vibration acceleration ≤0.5g at high speeds, laying the foundation for smooth engine operation.

The synergistic performance of the camshaft and gears directly impacts core engine performance. Precise control of valve opening and closing timing maintains the optimal fuel-air mixture ratio, reducing fuel consumption by 5-8%. Stable valve timing reduces the risk of valve-piston interference, extending valve system lifespan by over 40%. High intake efficiency increases torque output by 10% under heavy-load climbing and full-bucket digging conditions, significantly improving operational efficiency.

In complex mining conditions, this assembly demonstrates excellent environmental adaptability. The camshaft surface features a special wear-resistant coating with a hardness exceeding 900HV, resisting abnormal wear caused by prolonged poor lubrication. The gear meshing surfaces are phosphated to enhance wear resistance and anti-seize capabilities. The journal and bearing mating surfaces employ a micro-convexity design to optimize oil film distribution, maintaining reliable lubrication during both low-temperature starts and high-temperature heavy loads, reducing the risk of premature failure.

Choosing the XCMG XE2000 excavator camshaft and gear assembly (part number 800169281) not only provides you with original equipment manufacturer (OEM) matching, high-performance core transmission components, but also access to professional support from XCMG’s global service network, including technical parameter consultation, rapid parts replenishment, and assembly guidance. Let this precise transmission assembly of the valve train build a robust defense for efficient power output in your mining equipment engines, ensuring continuous and stable production.

Get a personalized quote now

*For other spare parts procurement needs, please contact us!

800169281 camshaft and gear XCMG XE2000 excavator spare parts

1 800169049 1 CAMSHAFT
2 800167175 2 SEMI-CIRCLE KEY
3 800167176 1 CAMSHAFT GEAR
4 800167177 2 CAMSHAFT THRUST BEARING
5 800142946 4 BOLT
6 800167179 4 LOCKING PLATE
7 800169197 1 CAMSHAFT
8 800169009 1 CAMSHAFT GEAR