272100516 transmission for XCMG ZL50G/ZL50GL Wheel Loader

product parameters

Part No.：272100516
Product Name：Fixed-shaft Transmission
Product Type：Construction Machinery Travel Transmission Assembly
Transmission Type：Fixed-shaft Parallel Gear Drive
Housing Material：High-strength Alloy Cast Iron, Stress Relief Aging Treatment
Gear Material：High-quality Alloy Structural Steel, Overall Tempering + Gear Tooth Carburizing & Quenching
Bearing Type：Heavy-duty Roller Bearing + Deep Groove Ball Bearing Combination
Seal Assembly：Fluorine Rubber Oil Seal, Oil-resistant O-ring, Anti-aging, High & Low Temperature Resistant
Lubrication Method：Combined Forced Pressure Lubrication & Splash Lubrication
Applicable Equipment：Wheel Loader
Applicable Working Condition：Earthwork, Mine, Sand Yard and other heavy load impact working conditions
Working Fluid：Construction Machinery Special Hydraulic Transmission Oil
Normal Operating Oil Temperature：70℃ ~ 95℃
Ambient Working Temperature：-20℃ ~ +80℃
Gear Structure：Multiple Forward Gears + Reverse Gear, Manual Mechanical Shifting
Rated Input Torque：Matches the original rated torque of wheel loader
Max Short-term Load Torque：Can withstand instantaneous impact torque during shoveling operation

• Simple and stable structure with fewer fault points, convenient on-site maintenance and low downtime loss.
• High-strength heat-treated gears, excellent wear and impact resistance, longer service life.
• Alloy cast housing with stress relief treatment, strong rigidity and good deformation resistance under heavy impact.
• OEM standard flange interface, direct installation without modification, easy assembly and replacement.
• Combined lubrication system to form stable oil film, reduce friction and avoid overheating damage.
• High-quality fluorine rubber seals, oil corrosion and aging resistance, effectively prevent oil leakage.
• High transmission efficiency, less power loss, lower fuel consumption and better economy.
• Optimized bearing configuration, strong load capacity, reduce bearing pitting and seizure risks.
• Improved shift mechanism, smooth shifting and less impact to reduce component fatigue.
• Strict bench test before delivery, stable performance and high consistency for harsh working conditions.

FAQ 

Q: What is the difference between fixed-shaft transmission and planetary transmission?
A: The gear shaft position of fixed-shaft transmission is fixed, with simple structure and low maintenance cost. Planetary transmission has smaller size and stronger torque bearing capacity, but its structure is complex and maintenance is more difficult.

Q: What causes oil leakage of transmission?
A: It is mostly caused by aging oil seal, loose housing bolts, excessive oil level or cracks on housing due to collision. It is necessary to check seals, bolt tightening torque and housing appearance.

Q: How to deal with stuck gear shifting of transmission?
A: First check the quality and level of transmission oil, then check whether the shifting mechanism is stuck and the wear condition of shift fork. Replace the oil in time if it deteriorates.

Q: Can this assembly be refitted to loaders of other brands?
A: It is recommended to match the corresponding original machine. The frame and connection sizes of different brands are inconsistent. Direct refitting is not recommended, which may lead to installation and power matching problems.

Q: What is the maintenance cycle of transmission?
A: It is recommended to change oil initially for new or overhauled machines. Afterwards, replace transmission oil regularly according to the equipment maintenance manual, and check oil level, seals and fixing bolts.