204000065AA
Product Details
1. Basic Overview & Core Functional Positioning
The 204000065AA Rear Wheel Hub is a genuine OEM integrated hub and bearing assembly exclusively designed for the Chery Tiggo 8 PRO Max mid-size high-performance SUV. Serving as the core load-bearing and rotating connection component of the rear chassis system, this wheel hub unit is installed at the rear suspension steering knuckle position, connecting the rear axle, suspension assembly and rear tire. It undertakes multiple critical core functions, including bearing the vehicle’s static and dynamic full load, supporting high-speed stable rotation of rear wheels, maintaining precise wheel positioning parameters, and cooperating with the vehicle’s active safety system. As a key chassis vulnerable part of the Tiggo 8 PRO Max 2.0T high-power version, it adapts to the vehicle’s high torsion output, heavy-load carrying attributes and diverse complex road driving scenarios.
Different from front wheel hubs that bear steering composite forces, this rear wheel hub mainly bears vertical vehicle weight, rear axle transmission load and lateral centrifugal force generated during cornering and lane changing. It effectively stabilizes the rear wheel running posture, prevents rear end floating and wheel offset, and directly affects the vehicle’s high-speed driving stability, braking accuracy and tire wear uniformity. Built-in high-precision ABS induction structure can real-time monitor rear wheel speed signals, providing accurate data support for ABS anti-lock braking, electronic stability program (ESP) and traction control system (TCS), effectively avoiding braking deviation and wheel slipping during rainy, snowy and low-adhesion road driving, and comprehensively improving the active safety level of Chery Tiggo 8 PRO Max.
The part number 204000065AA is a dedicated exclusive specification for Chery Tiggo 8 PRO Max, with unique bolt hole pitch, inner and outer diameter matching size, load rating and ABS signal calibration parameters. It is strictly matched with the vehicle’s original rear suspension structure and 5-bolt wheel positioning standard, and cannot be interchanged with wheel hubs of ordinary Tiggo 8, Tiggo 7, Omoda C5 or other Chery series models. Produced in full compliance with IATF 16949 international automotive quality system and Chery’s original factory chassis precision standards, it completely solves the common defects of aftermarket universal hubs such as insufficient load capacity, poor running stability and signal mismatch, and maintains the original chassis handling and safety performance of Tiggo 8 PRO Max for a long time.
2. Material Selection & Manufacturing Standards
The 204000065AA Rear Wheel Hub adopts high-strength automotive-grade alloy steel and integrated forging molding technology, specially optimized for the heavy-load and high-durability working characteristics of mid-size SUVs. The main hub body is forged from high-purity carbon alloy structural steel, which undergoes integral quenching and surface strengthening heat treatment. It features ultra-high structural rigidity, strong compression resistance and fatigue crack resistance, and can stably bear the full-load curb weight and instantaneous impact load of Tiggo 8 PRO Max without permanent deformation or structural cracking after long-term driving on bumpy roads.
The built-in bearing part adopts high-precision double-row ball bearing structure with high-hardness bearing steel rolling elements and low-friction nylon retainer. The internal contact clearance is strictly calibrated by micron-level precision grinding technology, ensuring low-resistance and silent rotation. The outer layer is equipped with double-layer composite rubber sealing rings made of high-temperature resistant and aging-resistant nitrile rubber, which has excellent waterproof, dustproof and mud-proof capabilities. It can effectively isolate external rainwater, sediment and road dust from invading the interior, prevent grease deterioration and internal metal wear, and adapt to all-weather and full-scenario driving conditions of SUVs.
All finished 204000065AA wheel hubs pass strict multi-process factory inspections, including dimensional full inspection, dynamic load fatigue testing, high-speed rotation noise testing, salt spray corrosion resistance testing and ABS signal accuracy calibration. Each product is pre-filled with high-temperature long-life bearing grease in a dust-free workshop to realize lifelong maintenance-free performance under normal driving conditions. The automated precision forging and finishing process ensures consistent product batch stability, effectively avoiding quality problems such as uneven stress and poor concentricity of aftermarket cast wheel hubs, and meeting the high-reliability durability requirements of Chery Tiggo 8 PRO Max long-distance travel and complex road driving.
3. Structural Composition & Working Principle
The 204000065AA Rear Wheel Hub adopts a highly integrated modular one-piece structure, integrating wheel hub body, double-row precision bearing, ABS induction gear ring, multi-layer sealing assembly and standard bolt fixing holes. The overall structure is compact and highly matched with the rear knuckle and brake disc assembly of Tiggo 8 PRO Max. The five-hole symmetrical positioning design conforms to the original vehicle’s wheel installation standard, ensuring accurate assembly positioning and uniform stress distribution without eccentric deviation.
Its core working principle is based on high-precision rolling friction support and real-time speed signal feedback. After installation, the hub outer ring is fixed with the rear knuckle to keep static, while the inner ring drives the tire and brake disc to rotate synchronously. The double-row bearing structure evenly disperses vertical load and lateral shear force, converts sliding friction into low-resistance rolling friction, reduces chassis driving resistance and mechanical wear, and improves driving smoothness and fuel economy. The fully enclosed sealing structure locks internal lubricating grease permanently to avoid dry friction and high-temperature ablation of internal parts during long-term high-speed operation.
The built-in ABS induction ring is the core optimized structure of this hub assembly. With the rotation of the wheel, it continuously outputs stable and accurate pulse speed signals to the vehicle ECU, ensuring timely and sensitive intervention of the braking safety system. The integrated structural design eliminates the error problems caused by split assembly, maintains ultra-high concentricity of wheel rotation, effectively suppresses rear-end jitter and tire eccentric wear, and optimizes the vehicle’s chassis NVH performance and high-speed stability.
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