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3103100-K00
HongPro
3103100-K00
This product is the third-generation integrated wheel hub bearing unit (GEN 3), suitable for small cars with axle loads of 0.5-2 tons. Its core function is to carry radial/axial loads of the vehicle and transmit power, while integrating ABS sensors to ensure accurate braking. Compliant with ISO 16281 standard, L10 rated life ≥ 1.5 million kilometers, equipped with IP6K9K protection and ECE R122 certification, adopting maintenance free sealing design, can work stably in an environment of -40 ℃ -120 ℃, suitable for daily commuting, long-distance and other multiple scenarios.
adopting the third-generation wheel hub bearing unit (GEN 3) design, integrating ABS sensors and double row angular contact ball bearings, reducing weight by 15% and improving installation efficiency by 30% compared to traditional structures. Suitable for small cars with axle loads of 0.5-2 tons, compliant with ISO/TS 16949 certification, with precise control of bolt tightening torque between 25-45N · m, ensuring seamless matching of small car wheel hub bearings with most vehicle models and reducing installation error risks.
The core components are made of S53C carburizing steel (outer/inner ring) and SUJ2 high carbon chromium bearing steel (rolling elements), which have undergone salt bath quenching treatment, with a surface hardness of HRC58-62. Tested according to ISO 16281 standard, the L10 rated life is ≥ 1.5 million kilometers, and the salt spray test (G3 level) is ≥ 72 hours without corrosion, making the high durability small car wheel hub bearings meet the annual use needs of car owners for 20000 to 30000 kilometers, reducing replacement frequency.
It has the highest dustproof and waterproof rating of IP6K9K, and can withstand high temperature and high pressure water flushing; The working temperature covers -40 ℃ -120 ℃, and has passed ISO 16750 vibration resistance test and 50 hour mud water durability test. Even in the cold winter of the north or the scorching heat of the south, adapting wheel hub bearings to extreme environments can prevent seal failure and grease leakage, ensuring driving safety.
The dynamic radial clearance is strictly controlled within 0.01-0.05mm, the basic rated dynamic load is 50-150kN, and the maximum allowable speed is 3000-6000rpm (corresponding to a vehicle speed of 180-220km/h). Compliant with ECE R122 safety standards, there is no performance degradation during high-speed driving, solving the common high-speed noise problem of ABS integrated wheel hub bearings.
using FKM seals and pre filled high-performance grease to achieve lifetime maintenance free. Compared to traditional bearings that require regular grease injection, it can reduce maintenance costs by 90% annually. According to QC/T standard testing, the fluctuation of no-load rotational torque is ≤ 1.5N · m, and it maintains stable performance after long-term use, highlighting the economic advantages of small car wheel hub bearings.
| Parameter Category | Parameter name | Detailed explanation |
| Specification | Product Type | Third generation integrated wheel hub bearing unit (GEN 3) |
| Scope of adaptation | 0.5-2 ton axle load for small cars (including compact/medium-sized cars) | |
| Core certification | ECE R122,DOT | |
| Pre tightening process | Rolling self-locking pre tightening | |
| Structure and Size | Inner diameter range | 32mm-95mm |
| Outer diameter range | 85mm-175mm | |
| Width | 22mm-58mm | |
| Bolt hole configuration | 4 holes (hole spacing 90mm)/5 holes (hole spacing 100mm) | |
| Performance metrics | Basic rated dynamic load (C) | 55kN-145kN (graded by size) |
| Basic rated static load (C0) | 105kN-290kN (graded by size) | |
| Maximum allowable speed | 3200rpm-5800rpm (corresponding to vehicle speeds of 190-210km/h) | |
| Dynamic radial clearance | 0.012mm-0.045mm (unloaded state) | |
| Materials and Protection | Core materials | Inner/outer ring: S53C carburizing steel (surface hardness HRC58-62) |
| Seal material | Fluororubber (FKM)+metal skeleton | |
| Protection level | IP6K9K (maximum dustproof and waterproof rating) | |
| Corrosion resistance | Neutral salt spray test ≥ 72 hours (G3 level) | |
| Durability | L10 rated lifespan | ≥ 1.5 million kilometers (standard operating conditions) |
| Fatigue test | Under 120% rated load, there is no damage for 1000 hours | |
| Mud and water testing | 50 hours of continuous mud and water immersion (including sediment particles) |
Here are specific application scenarios of wheel hub bearing:
Perfect for city drivers facing frequent stops, starts, and turns. Our hub bearing's sealed design and premium grease withstand constant low-speed operation, reducing wear from repetitive movement. Its precision construction ensures quiet, vibration-free performance at all speeds, significantly enhancing cabin comfort during daily errands, school runs, and the urban commute.
Engineered for stability and safety at sustained high speeds. The bearing's high-grade materials and precise manufacturing (e.g., run-out <0.05mm) prevent dangerous vibrations, ensuring smooth and confident handling. This reliability is crucial for safe long-distance travel, providing peace of mind for families and frequent highway drivers.
Built to conquer potholed city streets, gravel roads, and extreme weather. Its robust sealing (often 2RS rubber seals) effectively repels water, road salt, and grit, preventing contamination that causes premature failure. This corrosion-resistant durability makes it an ideal choice for drivers in regions with harsh winters or poor road maintenance.
Essential for maintaining vehicle safety systems. The integrated high-precision magnetic encoder guarantees accurate wheel speed signals to the ABS and stability control modules. This ensures these life-saving systems function correctly during sudden braking or loss of traction, making it a must-replace component for any vehicle equipped with ABS.
Meets the heightened demands of performance sedans and luxury vehicles. It handles increased cornering forces (high axial loads) and provides the exceptional smoothness and low noise levels expected in high-end automobiles. Its OE-equivalent quality restores the factory driving feel and performance standards.
Always replace hub bearings in pairs to maintain balanced performance. Use a calibrated torque wrench to tighten the central axle nut to the vehicle manufacturer's exact specification (typically 180-220 N·m for many passenger cars). Avoid impacting the bearing directly during installation. Ensure the ABS sensor connector is securely fastened and free of debris to guarantee proper anti-lock braking system function. After installation, check for any wheel play or unusual noises before driving. Proper installation following OEM procedures ensures the bearing achieves its rated service life exceeding 150,000 km under normal conditions and maintains vehicle safety.
Q1: Are you manufacturing company?
A: Yes. We are factory, located in Guangzhou. Our factory has certificate of lATF 16949.
Q2: What are your main products?
A: We have steering rack ,steering pump ,wheel hub and bearing ,drive shaft ,alternator,control arm and so on.
Q3: What is the lead time?
A: lt takes 3-7 days when stock is available, and 15-40 days when out of stock.
Q4: What is the warranty?
A: Our guarantee period is 60,000 kilometers or 1 year.
Q5: Do you have samples?
A: Yes, we have samples available. For bulk orders, please inquiry us for more details.
