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1602100-E00
HongPro
1602100-E00
Our car wheel hub bearing is a core component connecting the wheel and axle, supporting vehicle weight (up to 800kg per bearing) and enabling smooth wheel rotation. It integrates precision rolling elements and sealed structures, reducing friction coefficient to ≤0.0015 (lower than industry average 0.002).
Certified by ISO 9001 and TS16949, each bearing undergoes 120-hour durability testing (simulating 100,000km driving) with no abnormal wear. The double-lip seal design resists dust and water (IP6X protection), ensuring stable performance in -30℃ to 120℃ environments, vital for safe and efficient vehicle operation.
Adopting GCr15SiMn high-carbon chromium bearing steel (hardness up to HRC 60-62), its fatigue resistance is 25% higher than that of ordinary bearing steel, and it can stably bear a single-wheel load of 800kg (far exceeding the industry standard of 650kg per wheel). Through CNC ultra-precision grinding, the roundness error of rolling elements is ≤0.001mm, ensuring the car wheel hub bearing has a vibration value ≤2.5mm/s during high-speed rotation, improving driving smoothness and component service life.
Innovatively adopting a "rubber + metal" double-lip seal structure, the seal contact pressure reaches 0.8MPa, and it has passed IP6X dustproof and waterproof certification (capable of resisting sand, dust and rainwater intrusion). After 1000-hour salt spray test, the internal rust rate of the bearing is 0. Under extreme temperatures from -30℃ to 120℃, the seal performance retention rate exceeds 98%, solving the pain point that traditional wheel hub bearing is prone to failure due to water ingress and rust.
Each high-performance wheel hub bearing undergoes a 150,000km road simulation test (equivalent to 5 years of daily driving). After the test, the radial clearance variation is ≤0.005mm (industry average is 0.01mm), and the friction torque is stable within 1.2N·m. It has passed ISO 15242 bearing life standard certification, and its actual service life is 40% longer than that of ordinary products, reducing the replacement frequency and cost for customers.
Developed based on global car bearing installation data, the dimensional tolerance is controlled within ±0.02mm, and the adaptation rate reaches 99.8%, allowing direct installation without additional adjustment. A matching installation torque guide (recommended 25-35N·m) is provided to help users avoid installation errors, ensure precise matching between the car wheel hub bearing and the shaft system, and reduce operating noise.
From raw material incoming inspection to finished product delivery, it undergoes 16 quality inspection procedures (including hardness test, seal test, and rotation accuracy test). The entire product series has passed ISO 9001 quality management system certification and TS16949 automotive industry-specific certification. Each batch of products is accompanied by a test report, allowing customers to choose high-quality wheel hub bearing with confidence.
| Parameter Category | Specific Parameter | Data/Standard Description | Authority/Test Source |
| Basic Information | Product Type | Double-row angular contact ball bearing (integrated hub type) | Compliant with ISO 355 bearing classification standards |
| Inner Diameter Range | 35mm - 65mm (per application requirements) | Measured by digital caliper (accuracy ±0.001mm) | |
| Outer Diameter Range | 70mm - 120mm (per application requirements) | Verified by coordinate measuring machine (CMM) | |
| Material Performance | Rolling Element Material | GCr15SiMn high-carbon chromium bearing steel | Hardness test: HRC 60-62 (Rockwell hardness tester) |
| Cage Material | Nylon 66 (with glass fiber reinforcement) | Tensile strength: ≥85MPa (tensile testing machine) | |
| Seal Material | Nitrile rubber (NBR) + steel skeleton | Compression set: ≤20% (GB/T 7759-2015 standard test) | |
| Precision & Performance | Radial Runout | ≤0.005mm (at outer ring raceway) | ISO 199 standard test (precision grade P5) |
| Friction Torque | ≤1.2N·m (at rated speed) | Dynamometer test (2000r/min rotating speed) | |
| Static Load Rating | ≥55kN (radial) / ≥25kN (axial) | ISO 76 standard calculation and verification | |
| Environmental Adaptability | Temperature Resistance Range | -30℃ to 120℃ (continuous operation) | High/low temperature chamber cyclic test (1000h) |
| Protection Grade | IP6X (dustproof) / IPX4 (waterproof) | IEC 60529 standard dust/water test | |
| Salt Spray Resistance | ≥1000 hours (neutral salt spray, no visible rust) | GB/T 10125-2021 salt spray test (5% NaCl solution) | |
| Certification & Life | Certification Standards | ISO 9001:2015, TS16949:2016, ISO 15242 (bearing life) | Certification bodies: SGS, TÜV (certificate No.: SGS-BEAR-2025-068) |
| Rated Service Life | ≥150,000km (under normal driving conditions) | Road simulation test (equivalent to 5 years of daily use) | |
| Fatigue Life Enhancement | 40% longer than ordinary bearings (under same load conditions) | Accelerated fatigue test (ISO 281 standard) |
Here are specific application scenarios of wheel hub bearing:
Targeting frequent starts and stops in cities (daily driving 30-50km, over 200 starts/stops per day), the product has a friction torque of ≤1.2N·m, reducing energy consumption by 20% compared to ordinary bearings. After 1,000 start-stop tests, the radial clearance change is only 0.003mm, ensuring smooth wheel rotation during daily commuting and reducing energy loss.
For continuous long-distance driving (single trip over 100km, rotation speed above 2,000r/min), the product has passed a 150,000km road test with a high-temperature stability rate of 98%. In a 120℃ environment, the friction coefficient remains stable at 0.0015, preventing bearing failure due to high temperatures and ensuring long-distance driving safety.
For rainy areas (annual precipitation over 800mm), the product features an IP6X dustproof and waterproof design, showing no rust after a 1,000-hour salt spray test. When driving in rain, the sealing structure can block rainwater intrusion, reducing the bearing failure rate by 60% compared to ordinary products, making it suitable for humid climate conditions.
For vehicles over 5 years old (original bearing wear rate over 70%), the product offers OE-level compatibility (compatibility rate 99.8%), with radial runout ≤0.005mm after installation. Tests show that after replacement, the vehicle's driving noise is reduced by 3-5 decibels, solving the abnormal noise problem caused by aged bearings in old vehicles.
For light unpaved roads such as rural paths (jolt frequency 10-15 times per minute), the product uses reinforced steel material (impact resistance increased by 30%). After 500 jolt tests, the structure integrity rate is 100%, capable of withstanding light jolt impacts and meeting the needs of diverse road conditions.
Check that the caliper has no external damage. Test the tightness of the hydraulic channel with 18MPa pressure (hold pressure for 5 minutes with no leakage). Prepare a torque wrench (set to 25-35N·m) and verify the accessories against the OE manual.
Clean oil stains on the brake disc, align with the bracket bolt holes and tighten (torque error ≤±1N·m). Manually push the piston (stroke 10-15mm) to ensure no jamming. Connect the hydraulic pipeline and bleed air.
Press the brake pedal 3-5 times in neutral to build pressure. Test brake response during low-speed driving (braking distance shortens evenly). Avoid hard braking within the first 100km to complete component break-in.
Inspect the seals every 20,000km (no aging or oil leakage). Clean brake components after rainy days. If abnormal noise or increased pedal travel occurs, contact certified personnel for inspection.
