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JLM10494810
HongPro
JLM10494810
Our car wheel hub bearing is a core component integrating support, rotation and load-bearing functions, widely used in small cars. It adopts high-quality bearing steel and precision grinding technology, with a friction coefficient as low as 0.0015, reducing energy consumption by 8%-12% compared with ordinary bearings.
Compliant with ISO/TS 16949 automotive quality standards, it can withstand axial loads up to 3500N and radial loads up to 6800N, ensuring stable operation at speeds up to 160km/h. With IP69 waterproof and dustproof performance, its service life reaches 80,000-120,000km, effectively reducing maintenance frequency for users
Our high-performance wheel hub bearing is made of SAE 52100 bearing steel, undergoing 12 precision grinding processes, with a hardness of HRC 60-64, reducing the wear rate by 40% compared to ordinary steel. Each product is certified by the ISO/TS 16949 automotive quality system and undergoes 3,000 dynamic load tests before leaving the factory, ensuring stable operation within a service life of 80,000-120,000km and significantly reducing customers' maintenance costs.2.Low-Friction Design to Boost Driving Efficiency
Relying on the patented labyrinth seal structure (Patent No.: US 10,876,543 B2), our durable automotive wheel bearings have a friction coefficient as low as 0.0012, 25% lower than the industry average. Equipped with high-temperature resistant grease (temperature resistance: -40℃ to 180℃), it can reduce vehicle energy consumption by 8%-12% while lowering the bearing operation noise to below 55 decibels, bringing users a quiet and efficient driving experience.
Tailored for complex road conditions, the product features IP69K-level protection, capable of withstanding high-pressure water jets (80℃, 80bar pressure) and dust intrusion. Tested by the third-party testing organization (SGS), the internal rust rate of the bearing is 0 in a continuous 300-hour humid and hot environment (temperature 40℃, humidity 95%), perfectly suitable for scenarios such as rainy days and muddy roads, ensuring the reliability of durable automotive wheel bearings in harsh environments.
By optimizing the raceway curvature design, our wheel hub bearing has an axial load capacity of 3,800N and a radial load capacity of 7,200N, far exceeding industry standards (2,800N axial, 6,000N radial). At a high speed of 160km/h, the radial runout of the bearing is controlled within 0.02mm, effectively improving vehicle driving stability, reducing vibration risks during braking, and complying with the ECE R122 vehicle safety regulations.
The product adopts a modular design, compatible with most small car hub specifications, with the adaptation error controlled within ±0.05mm. It is equipped with pre-coated anti-rust oil installation accessories, shortening the installation time by 30% compared to traditional bearings, and no additional clearance adjustment is required. We also provide a detailed installation guide to help customers complete assembly quickly, enhancing the usability of the high-performance wheel hub bearing.
| Parameter Category | Parameter Item | Technical Parameter Value / Description | Test Standard / Notes |
| Basic Material | Bearing Steel Grade | SAE 52100 High Carbon Chromium Bearing Steel | ASTM A295-2020 |
| Cage Material | Glass Fiber Reinforced Nylon 66 (PA66+GF30) | ISO 1043-1:2011 | |
| Seal Material | Nitrile Butadiene Rubber (NBR) + Metal Skeleton | DIN 53505:2000 | |
| Performance Parameters | Friction Coefficient | ≤0.0012 (Dynamic Working Condition) | ISO 15312:2017 |
| Axial Load Capacity | 3800N (Static) / 3200N (Dynamic) | ISO 76:2006 | |
| Radial Load Capacity | 7200N (Static) / 6500N (Dynamic) | ISO 76:2006 | |
| Maximum Applicable Rotational Speed | 8000 r/min (Continuous Operation) | ISO 15311:2017 | |
| Operating Temperature Range | -40℃ ~ 180℃ (Including Grease Working Condition) | DIN EN 12871:2017 | |
| Protection Performance | Protection Class | IP69K (Dustproof, High-Pressure Waterproof) | IEC 60529:2013 |
| Rust Resistance | Neutral Salt Spray Test ≥ 120 Hours (No Rust) | ASTM B117-2020 | |
| Dimensional Tolerance | Inner Diameter Tolerance | 0.005mm ~ 0.010mm (P5 Class Precision) | ISO 492:2014 |
| Outer Diameter Tolerance | 0.008mm ~ 0.015mm (P5 Class Precision) | ISO 492:2014 | |
| Radial Runout | ≤0.02mm (Under 160km/h Working Condition) | ISO 199:2014 | |
| Service Life & Lubrication | Rated Service Life | 80,000km ~ 120,000km (Normal Road Conditions) | ISO 281:2019 |
| Grease Type | Fully Synthetic High-Temperature Bearing Grease (Lithium-Based) | DIN 51825:2013 |
Here are specific application scenarios of wheel hub bearing:
In frequent start-stop scenarios (average 15-20 stops per hour), the bearing’s low-friction design (≤0.0012 coefficient) reduces energy loss by 8%-12% (per ISO 15312 test). It maintains stable rotation under variable speeds, ensuring smooth driving even in heavy traffic.
At 120-160km/h (common highway speeds), it resists 3800N axial load (per ISO 76) and controls radial runout ≤0.02mm. This meets ECE R122 safety standards, preventing vibration and ensuring reliable operation during 4-8 hour continuous trips.
On bumpy roads with 50-100N impact force per meter, its IP69K protection (IEC 60529) and SAE 52100 steel structure (HRC 60-64 hardness) resist dust/mud intrusion and wear. It reduces vibration transmission by 30% vs ordinary bearings (SGS tested).
Check bearing surface for scratches (per ISO 492) and confirm no dust (IP69K requires clean installation). Use a torque wrench to verify hub mounting surface flatness ≤0.05mm—unqualified surfaces cause 30% higher wear (SGS data).
Apply 5g of matching grease (DIN 51825 standard) to the bearing inner ring. Tighten the mounting bolt to 80-120 N·m (varies by hub size), then rotate the wheel 5 times to ensure smooth rotation (no abnormal noise >55dB).
Inspect every 10,000km: Check for oil leakage and measure radial runout ≤0.02mm (ISO 199). Avoid high-pressure water direct spray on seals. In -20℃ below, run the car idle 3 minutes before driving to protect grease performance.
