800167193 camshaft gear XCMG XE2000 excavator spare parts

XCMG XE2000 Excavator Camshaft Gear (Part No. 800167193): The Core of Precise Valve Train Transmission under Heavy-Duty Conditions

In the global heavy-duty mining industry, the XCMG XE2000 mining excavator, with its robust configuration of a 192,000kg operating weight, an 810kW imported engine, and a large bucket capacity of 10-14m³, continuously delivers efficient power. The camshaft gear (part no. 800167193), as the “nerve center” of the engine’s valve train system, is the core transmission component that ensures the valves operate with millisecond-level precision, directly determining the engine’s fuel efficiency and power stability under extreme conditions.

This camshaft gear is made of high-strength low-alloy structural steel through integral forging. The blank undergoes multiple aging treatments to eliminate internal stress, possessing excellent fatigue strength and structural rigidity. To meet the demands of high-frequency, full-load engine operation in mining, the gear teeth undergo a deep carburizing and quenching process, achieving a carburized layer depth of 1.2-1.5mm and a surface hardness of 59-63HRC. The tooth root fillets are reinforced to effectively resist contact fatigue and bending stress caused by long-term meshing, preventing fatal failures such as tooth surface spalling and tooth breakage, and ensuring the continuous and stable operation of the valve train.

In terms of design, supported by data from XCMG’s engine dynamics laboratory, the gear module, tooth ratio, and tooth profile correction parameters have been verified through 2000 hours of bench testing. A high-precision involute tooth profile and edge-modified design are employed, with the meshing clearance with the crankshaft gear strictly controlled within 0.03-0.05mm, and a transmission ratio error of less than 0.01%, ensuring that the camshaft angular deviation per revolution does not exceed 0.05°. Precise phase positioning design ensures that the valve opening angle and lift curve perfectly match the combustion chamber conditions, achieving optimal control of fuel atomization and air-fuel mixture ratio, improving combustion efficiency by more than 3%. Leveraging XCMG’s intelligent manufacturing system, the entire gear manufacturing process utilizes a digital traceability system. The CNC hobbing machine achieves IT5 precision, with a cumulative pitch error of ≤0.02mm and a tooth direction error of ≤0.015mm, ensuring a vibration-free transmission process. The inner bore and keyway are machined using a single-clamp grinding process, with a coaxiality error of ≤0.01mm, preventing eccentric loads after assembly. Each finished product undergoes 3D coordinate inspection and ultrasonic flaw detection, with key dimensional accuracy controlled at the micron level, eliminating any potential quality issues.

In actual mining operations, the precise transmission of the camshaft gear directly brings three core benefits: First, by stably controlling valve timing, it allows for more complete fuel combustion under heavy-load climbing and full-bucket digging conditions, reducing fuel consumption by 8-10%; second, it reduces impact wear on the valve train, extending the service life of components such as valves and valve seats by more than 50%; and third, it reduces engine operating noise by 3-5 decibels, improving driving comfort while reducing mechanical fatigue damage.

Choosing the XCMG XE2000 excavator camshaft gear (part number 800167193) not only provides you with a high-precision transmission component compatible with the original engine, but also allows you to benefit from XCMG’s global parts service network, including 24-hour technical consultation, fast logistics delivery, and professional installation guidance. Let this precise valve timing transmission core, designed for heavy-duty operation, solidify the power output foundation of your mining equipment and continuously create production value.

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800169283 camshaft gear XCMG XE2000 excavator spare parts

1 800167175 1 SEMI-CIRCLE KEY
2 800167193 1 CAMSHAFT GEAR