SINOTRUK MCX16 Axle Parts Wheel Hub AZ712734001001

Description

HOWO truck, HOHAN truck, SINOTRUK Axle Parts Wheel Hub AZ712734001001

The Functions of Wheel Hub AZ712734001001

As a critical component connecting the wheel and axle, the Wheel hub performs the following core functions:

1. Support for Wheel Rotation

Serving as the rotational foundation, the hub unit enables smooth wheel rotation through precision-engineered bearings (typically double-row angular contact or tapered roller bearings). It minimizes frictional resistance while maintaining concentricity, ensuring consistent rotational accuracy during vehicle operation.

2. Load Bearing and Force Transmission of Rear Wheel Hub

The truck wheel withstands complex mechanical loads in multiple directions:

• Vertical Load: Supports the vehicle’s weight, distributing static and dynamic loads from the chassis to the wheels.
• Driving Force: Transmits torque from the drive axle to the wheel, enabling propulsion.
• Braking Force: Absorbs deceleration forces generated by the braking system, ensuring stable deceleration.
• Lateral Force: Resists side forces during cornering or lane changes, maintaining tire grip and directional stability.

3. Safety and Stability Assurance

By integrating load-bearing and rotational functions:

• Prevents wheel detachment through robust structural design (e.g., forged steel housing with tensile strength ≥800MPa);
• Reduces vibration and noise via sealed bearing configurations (IP6K9K-rated dust/water protection);
• Enables precise wheel positioning, contributing to optimal tire wear and handling performance

Rear Wheel Hub AZ712734001001 Compatible the truck models:

Due to the number being related to Sinotruk, it is commonly found in the following vehicle models:

Sinotruk HOWO TX/T7H/T5G and other series of heavy-duty trucks;

Sinotruk SITRAK C7H/C5H and other high-end heavy-duty trucks;

Some buses or engineering vehicles equipped with Sinotruk engines.

Compatible engines:

It needs to be matched with Sinotruk’s MC series (such as MC11, MC13), WP series (such as WP10H, WP13) and other engines that meet the National VI emission standards for the SCR system.

Wheel Hub Common Faults and Maintenance:

• Clogging: If urea crystallizes or impurities build up, it can block the nozzle opening. This might cause higher exhaust emissions, turn on the fault light, and make the engine feel weaker.
• Leakage: When seals get old or the nozzle body gets damaged, urea solution might leak out. This could rust the exhaust pipe or mess up how much urea is used.
• Abnormal Injection: Problems with the solenoid valve or control signals going wrong can lead to the wrong amount of urea being injected, which affects how well the SCR system works.

Wheel Hub AZ712734001001 Maintenance Suggestions:

1. Use good-quality urea solution to stop clogging from happening.
   Check the nozzle and pipes regularly for any signs of trouble, and clean off any crystals you find.
   After you turn off the car, the SCR system will automatically blow air through the pipes for about 30 seconds to keep urea from sticking around and crystallizing. Wait until this finishes before turning off the power completely.
2. Replacement Procedure: Turn off the vehicle power supply, disconnect the electrical connection between the urea pump and the nozzle; Remove the nozzle fixing bolts on the exhaust pipe, remove the old nozzle; Install the new nozzle and seal it, connect the pipelines and circuits, use the diagnostic tool to clear the fault codes and test the injection function. Selection Points: Confirm that the part number is consistent with the vehicle manual to avoid compatibility issues due to model mismatch; Check if the accessory packaging is intact， and ensure that it comes with a certificate of conformity and warranty information.

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