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| Truck Driveshaft Information Sheet | ||
| Attributes | Shaanxi Automobile Series | Sinotruk Series |
| Attributes | DZ9114311072 | AZ9716310590 |
| Main Models | Shaanxi Delong F3000, M3000, X3000 | Sinotruk HOWO A7, T7H, V7G |
| Installation Location | Between the gearbox and drive axle, or between two drive axles | Rear axle drive assembly (middle and rear axle connection or main drive) |
| Material | 20CrMnTi high-strength alloy steel (cross shaft); | 45# steel or high-strength seamless steel pipe (pipe body) |
| Length (L) | Approx. 1140mm - 1200mm (depending on specific variant) | Approx. 590mm - 650mm (depending on specific model) |
| Flange Specifications | Standard 180mm or 165mm high-strength face toothed flange | Standard 180mm face toothed flange |
| Cross Shaft Specifications | 62×160mm or 68×175mm | 62×160mm (Heavy-duty type) |
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Performance Characteristics
1. Long-Distance Torque Transmission (Power Transfer): The engine and transmission of a heavy-duty truck are typically located at the front, while the drive wheels (rear axle) are several meters away. The core task of the driveshaft is to "transfer" the enormous rotational torque output from the transmission across this distance to the rear axle, driving the truck forward.
2. Adapting to Variable Angle Operation (Universal Joints): During truck operation, the rear axle bounces up and down due to uneven road surfaces.
Core Function: The universal joints at both ends of the driveshaft allow the driveshaft to change angle (typically between 0° and 20°) while rotating.
Result: Ensures continuous and smooth power transmission between the transmission and the bouncing rear axle, preventing breakage or jamming due to angle changes.
3. Adapting to Variable Length Needs (Telescopic Compensation): Due to suspension bounce, the straight-line distance between the transmission and the rear axle will experience slight stretching or shortening (within a few centimeters).
