F01-2203021HD
Product Details
1. Basic Overview & Core Functional Positioning
The F01-2203021HD Outer Ball Cage is a genuine Original Equipment Manufacturer (OEM) component exclusively developed and produced by Chery Automobile Group, specifically tailored for the Chery Jetour X70 mid-size SUV—a model celebrated for its spacious interior, robust performance, and versatility in both urban commuting and off-road driving scenarios. As a critical core component of the vehicle’s front-wheel drive (FWD) transmission system, this outer ball cage (hereinafter referred to as "the ball cage") is classified as a fixed-type constant velocity (CV) joint (RF节), mounted at the outer end of the front drive shaft, directly connecting the drive shaft to the front wheel hub. It serves as an irreplaceable "power transmission bridge" that ensures the engine’s torque is transmitted smoothly and evenly to the front wheels, while simultaneously accommodating the large angle changes of the front wheels during steering and the slight vertical displacement during driving over uneven road surfaces.
Unlike other transmission components that only handle linear power transfer, the F01-2203021HD Outer Ball Cage is designed to solve a key technical challenge: maintaining constant speed power transmission even when the front wheels turn at extreme angles (up to 47°) or move up and down with the suspension. As a fixed-type CV joint, it primarily handles angular compensation during steering, while the inner ball cage (mounted near the transmission) accommodates axial displacement of the drive shaft during suspension compression and rebound. This dual-ball-cage design ensures the Jetour X70 maintains stable power output, precise steering response, and smooth driving experience, even in complex driving conditions such as sharp turns, bumpy roads, or off-road terrain. A faulty or damaged outer ball cage can lead to severe power transmission failure, steering jamming, abnormal noises, or even wheel detachment, posing a critical safety hazard to the driver and passengers.
The part number F01-2203021HD serves as a unique identifier for this outer ball cage, distinguishing it from the inner ball cage (with a different part number) and other components in the Jetour X70’s transmission system (such as drive shafts, CV boots, or wheel hubs). It also differentiates the component from outer ball cages used in other Chery or Jetour models (such as the Jetour X90, Chery Tiggo 7, or Chery Arrizo 8), which are equipped with different transmission layouts, drive shaft specifications, and wheel hub interfaces. As a genuine OEM component, it strictly complies with Chery’s original design standards, material requirements, and performance specifications, while also adhering to international automotive quality and safety standards (ISO 9001, IATF 16949) and national automotive safety standards (GB 19752-2021). Every dimension, mounting interface, and internal precision structure is engineered to perfectly match the Jetour X70’s front transmission system, ensuring seamless integration and optimal compatibility. Unlike low-quality aftermarket outer ball cages that often suffer from premature wear, poor angle compensation, or structural failure, the genuine F01-2203021HD Outer Ball Cage undergoes rigorous testing and validation to ensure reliability, durability, and stable performance, making it the preferred choice for Jetour X70 owners and professional automotive repair technicians.
2. Premium Material Selection & Precision Manufacturing Process
The Chery Jetour X70 F01-2203021HD Outer Ball Cage is crafted from high-performance, automotive-grade materials, carefully selected by Chery’s engineering team to withstand the harsh operating conditions of the vehicle’s undercarriage—including exposure to extreme temperatures (ranging from -40°C to 120°C), road salt, moisture, dust, gravel impact, and continuous high-torque mechanical stress. The team prioritizes materials that balance high strength, wear resistance, impact resistance, and corrosion resistance, ensuring the ball cage maintains stable performance over a service life of typically 100,000–150,000 kilometers under normal operating conditions (depending on usage environment and maintenance habits).
The core structure of the F01-2203021HD Outer Ball Cage, including the outer race (bell-shaped housing), inner race (star-shaped sleeve), and steel balls, is made of high-strength S31803 (2205) duplex stainless steel—a premium automotive-grade material renowned for its excellent mechanical properties and corrosion resistance. This duplex stainless steel is composed of a balanced mixture of austenite and ferrite phases (approximately 1:1), offering superior tensile strength (minimum 620 MPa) and yield strength (minimum 450 MPa), ensuring it can withstand the high torque and impact forces exerted during power transmission and steering. It also exhibits exceptional wear resistance and a low friction coefficient, reducing wear between the steel balls and the raceways of the outer and inner races, and ensuring smooth, friction-free operation over time. Additionally, S31803 duplex stainless steel has excellent corrosion resistance against road salt, moisture, and environmental pollutants, preventing rust, pitting, or material degradation—critical for maintaining the ball cage’s structural integrity and performance in harsh undercarriage environments.
The cage (retainer) that holds the steel balls in place is made of high-strength PA66+30% glass fiber composite material, which offers a perfect balance of rigidity, toughness, and lightweight properties. This composite material has a high melting point, excellent wear resistance, and good dimensional stability, ensuring it can withstand the high temperatures and mechanical stress within the ball cage while maintaining precise positioning of the steel balls. The steel balls are made of hardened bearing steel (GCr15),经过 quenching and tempering heat treatment to achieve a surface hardness of HRC 60–64, further enhancing wear resistance and service life. The ball cage is also equipped with high-temperature resistant nitrile rubber (NBR) CV boots, which seal the internal components from dust, debris, and moisture, while retaining the special high-temperature grease that lubricates the steel balls and raceways.
The manufacturing process of the F01-2203021HD Outer Ball Cage follows a strict, ISO 9001 and IATF 16949 certified production workflow, consistent with Chery’s global quality standards and advanced precision manufacturing practices. The production process begins with the precision forging of the S31803 duplex stainless steel outer race and inner race, using high-precision forging machines to ensure uniform material density and structural integrity. This forging process eliminates internal defects such as bubbles or cracks, ensuring the components can withstand high torque and impact forces. After forging, the outer and inner races undergo a series of post-processing steps, including precision machining, deburring, and heat treatment (quenching and tempering), which further enhance the material’s strength, hardness, and dimensional stability.
The raceways of the outer and inner races are precision-ground using CNC grinding machines, ensuring dimensional accuracy with a tolerance of ±0.005 mm—critical for smooth steel ball movement and constant velocity power transmission. The steel balls are selected through a strict screening process to ensure uniform size and roundness, and the cage is injection-molded with high-precision molds to ensure perfect fit with the steel balls and races. The entire assembly undergoes rigorous quality control testing, including dimensional accuracy testing, torque resistance testing, wear resistance testing, corrosion resistance testing, and fatigue testing. The fatigue testing ensures the ball cage can withstand over 1.5 million cycles of high-torque operation and angle changes without failure, meeting Chery’s strict durability requirements and ISO 16750 fatigue standards. Only ball cages that pass all these tests are allowed to leave the factory, ensuring the F01-2203021HD series delivers reliable, long-lasting performance in the Jetour X70’s transmission system.
3. Structural Composition & Key Design Features
The Chery Jetour X70 F01-2203021HD Outer Ball Cage features a precision-engineered fixed-type CV joint structure, tailored to the specific requirements of the Jetour X70’s front-wheel drive system and its driving characteristics. Its structural composition is optimized to ensure constant velocity power transmission, smooth angle compensation, and reliable operation, with key design features that address the unique challenges of power transmission during steering and suspension movement.
One of the key design features of the F01-2203021HD Outer Ball Cage is its four main component structure: outer race (bell-shaped housing), inner race (star-shaped sleeve), cage (retainer), and steel balls. The outer race is a bell-shaped component with precision-machined raceways on its inner surface, connected to the wheel hub via splines to transmit torque to the front wheel. The inner race is a star-shaped component with matching raceways on its outer surface, splined to the drive shaft to receive torque from the transmission. The cage is installed between the outer and inner races, with evenly spaced pockets that hold the steel balls in place, ensuring the steel balls move smoothly along the raceways of both races. This structure enables the ball cage to transmit torque at a constant speed, even when the front wheel turns at extreme angles—achieving the core function of a constant velocity joint.
Another critical design feature is the optimized raceway profile and steel ball arrangement. The raceways of the outer and inner races are designed with a specific arc radius, calculated to ensure the steel balls maintain contact with both races at all times, even during maximum steering angles (up to 47°). This design minimizes friction and wear, while ensuring efficient torque transmission and smooth operation. The steel balls are evenly distributed (typically 6–8 steel balls) to evenly distribute the torque, preventing localized stress concentrations and extending the ball cage’s service life. Additionally, the ball cage is designed with a built-in grease reservoir, which stores the special high-temperature, high-pressure grease that lubricates the steel balls and raceways—reducing friction and preventing wear. The CV boot, made of high-temperature resistant NBR rubber, is securely attached to the outer race and drive shaft with stainless steel clamps, ensuring a tight, leak-proof seal that protects the internal components from dust, debris, and moisture.
The F01-2203021HD Outer Ball Cage also features a compact, lightweight design that fits perfectly in the Jetour X70’s front undercarriage, minimizing space occupation while ensuring optimal clearance with other components (such as the suspension arms, brake calipers, and wheel hub). The mounting splines are precision-machined to ensure a tight, secure fit with the drive shaft and wheel hub, preventing slippage or vibration during high-torque operation. The ball cage’s design also incorporates a dust-proof and water-proof structure, with the CV boot extending to cover the entire joint, further protecting the internal components from harsh undercarriage conditions. Additionally, the ball cage is designed to be compatible with the Jetour X70’s front suspension system, ensuring seamless integration with the vehicle’s steering and suspension components, and maintaining the vehicle’s handling precision and driving stability.
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