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A11-3301030BC
HongPro
A11-3301030BC
Backed by 16 years of auto parts manufacturing experience, the product uses SCM435 alloy steel to make the inner ring raceway. It shows no rust after 2000-hour salt spray testing, with a hardness of HRC 58-62, far exceeding the industry standard of HRC 55. Equipped with imported German INA seals, it effectively blocks dust and moisture, extending the service life of Chery Wheel Hub Bearing to over 80,000 kilometers—30% longer than ordinary bearings—thus reducing customers' subsequent replacement costs.
The raceway curvature is optimized through finite element analysis, and aerospace-grade grease is used for filling, keeping the friction coefficient below 0.0012. Laboratory tests show that vehicles equipped with this bearing can reduce fuel consumption by 0.3L per 100 kilometers, saving users approximately $200 in fuel costs annually. Meanwhile, the low-friction structure reduces bearing operation noise to below 55 decibels, complying with the ISO 1996-1 noise reduction standard.
Every batch of Chery Wheel Hub Bearing undergoes 3 rounds of testing: dynamic balance testing (error ≤ 5g), radial load testing (bearing capacity ≥ 80kN), and high-temperature durability testing (continuous operation at 120℃ for 72 hours without failure). The product has obtained IATF 16949 automotive industry quality system certification and SGS material testing, with a stable quality compliance rate of over 99.8%, providing reliable after-sales guarantee.
| Parameter Category | Specific Specifications | Test Standard/Certification |
| Core Material | Inner Ring/Outer Ring: SCM435 Alloy SteelRolling Elements: GCr15 Bearing SteelSeals: Nitrile Rubber (NBR) | SAE J2530 (Material Strength Standard) |
| Dimensional Accuracy | Inner Diameter Tolerance: 0.002-0.005mmOuter Diameter Tolerance: 0.003-0.006mmRadial Runout: ≤0.008mm | ISO 492 (Bearing Dimensional Tolerance Standard) |
| Performance Parameters | Basic Dynamic Load Rating: ≥80kNBasic Static Load Rating: ≥120kNMaximum Rotational Speed: 6000r/min | DIN 7225 (Bearing Load Test Standard) |
| Environmental Adaptability | Operating Temperature: -40℃~120℃Waterproof Rating: IP69KSalt Spray Test Resistance: No Rust for 2000 Hours | IEC 60529 (Waterproof Rating Standard) |
| Lubrication Configuration | Grease Type: Aerospace-Grade Composite Lithium-Based GreaseGrease Filling Volume: 35%-40% of Bearing Internal Space | ASTM D4950 (Grease Performance Standard) |
| Quality Certification | IATF 16949 Automotive Industry Quality System CertificationSGS Material Test ReportISO 1996-1 Noise Reduction Certification | Universal Certification Standards for the International Automotive Industry |
| Service Life | Service Life Under Normal Working Conditions: ≥80,000kmFailure Probability: ≤0.2% | Enterprise Internal 100,000-Cycle Test Data |
Here are specific application scenarios of wheel hub bearing:
Suitable for frequent start-stop road conditions, with no abnormal wear after 2,000 start-stop tests. The bearing's low-friction design reduces energy consumption by 5% during commuting. Equipped with an IP69K waterproof structure, it can handle water accumulation in urban rainy days, meeting the daily commuting needs of 50-80 km. It has served over 100,000 urban users.
Targeting high-load requirements, its basic static load rating reaches 120kN, capable of withstanding continuous pressure during long-distance transportation. Verified by 120℃ high-temperature durability tests, it adapts to temperature changes during long drives. In scenarios with daily long-distance travel of over 300 km, its service life stably exceeds 80,000 km.
Facing muddy and bumpy roads, the seals can block 99% of dust and muddy water, with no rust after 2,000 hours of salt spray testing. The high-precision design with radial runout ≤ 0.008mm ensures stable operation on complex roads, and has passed field verification in mountainous areas, rural areas and other multi-road conditions.
It can start normally in -40℃ low-temperature environments, and the bearing grease maintains good fluidity at low temperatures. Tested in winter in Northeast China and high-latitude regions, there is no jamming during low-temperature startup, meeting the needs of daily use and long-distance travel in severe cold areas in winter, and recognized by 85% of users in northern regions.
Before installation, clean the hub interface with a lint-free cloth to avoid impurities affecting precision. Use dedicated tools to tighten bolts in a diagonal sequence, with torque controlled at 45-55N·m; installation can be completed within 30 minutes. After installation, rotate the hub to check smoothness—no jamming indicates normal operation.
Inspect the bearing's seal integrity every 20,000km during daily use. If abnormal noise or looseness is found, contact after-sales support promptly. Backed by 16 years of manufacturing experience, the product comes with a 1-year warranty, and after-sales response time is ≤24 hours to ensure a good user experience.
