252900527 front transmission shaft for XCMG ZL50G/ZL50GL Wheel Loader

product parameters

Product Name：Front Propeller Shaft
Part Number：252900527
Applicable Model：XCMG ZL50G, ZL50GL Wheel Loader
Shaft Tube Material：Thick wall seamless steel pipe
Universal Joint Material：Alloy steel, carburizing quenching treatment
Structure Composition：Shaft tube, universal joint cross, flange yoke, spline sliding sleeve, grease nipple
Balancing Process：High precision dynamic balance
Connection Method：Flange bolt connection
Installation Method：Bolt fastening, direct replacement
Feature：High torsion resistance, impact resistance, length compensation, low vibration, long service life

- OEM original overall dimension and flange hole layout, fully matches ZL50G/ZL50GL loader installation requirement, bolt-on installation without modification, shorten maintenance replacement time.
- Thick seamless steel tube and forged alloy steel cross shaft, outstanding torsion resistance, withstand frequent torque impact during heavy-load shoveling operation, not easy to twist and fracture.
- Precision spline sliding sleeve design, realize automatic length compensation, absorb frame deformation and displacement change, reduce additional stress of transmission system.
- Complete dynamic balance calibration, effectively reduce vibration and abnormal noise in power transmission, protect front axle and gearbox components.
- Grease nipple design for convenient periodic lubrication, reduce wear of cross shaft and bearing, extend service life of propeller shaft.
- Complete assembly with flange bolts and lock washers, one-piece delivery, convenient for on-site disassembly and quick replacement.
- Optimized universal joint swing angle, smooth power transfer, reduce impact to front drive axle, lower the failure rate of front axle main reducer.

FAQ 

Q1: Is this front propeller shaft 252900527 compatible with both ZL50G and ZL50GL?
A1: Yes. This propeller shaft is customized for XCMG ZL50G and ZL50GL wheel loaders. Shaft length, flange specification and universal joint size are universal for the two models.

Q2: What typical symptoms indicate that the front propeller shaft needs to be replaced?
A2: Obvious abnormal knocking and vibration during acceleration and shoveling; serious wear or seizure of universal joint cross; cracks on shaft tube or flange; spline severe wear with large gap; power cut-off caused by shaft fracture.

Q3: What routine maintenance should be carried out for front propeller shaft?
A3: Regularly check shaft tube for cracks and deformation; inspect universal joint for looseness and abnormal clearance; add lithium base grease to grease nipple according to maintenance cycle; check tightness of flange connecting bolts; avoid long-time overload operation.

Q4: What precautions should be taken during propeller shaft installation?
A4: Mark original assembly position before disassembly to keep phase angle of universal joint; clean flange contact surface and remove dirt and rust; replace old lock washers; tighten flange bolts to specified torque; after installation, test run and check for abnormal vibration and noise.

Q5: What damage will lack of lubrication bring to the propeller shaft?
A5: Insufficient grease will lead to dry friction of cross shaft bearing, rapid wear, heat generation and seizure. It will cause strong vibration, and eventually lead to cross shaft fracture and propeller shaft failure.

Q6: What is the main reason for fracture of propeller shaft tube?
A6: Common reasons include long-time overloading, impact collision, loose flange bolts, out-of-balance of the shaft assembly, universal joint stuck, fatigue crack expansion after long service time.