loading
| Availability: | |
|---|---|
| Quantity: | |
S21-3301210
HongPro
S21-3301210
With over 8 years of specialized experience in automotive component manufacturing, our Chery Wheel Hub Bearings combine rigorous engineering with proven performance. Crafted from high-carbon chromium steel (52100 grade), the bearings feature precision-machined inner/outer races and ceramic-coated balls, reducing friction by 18% vs. standard bearings (tested per SAE J2521 standards). Certified to IATF 16949:2016 and ISO 9001, each unit undergoes 1000+ hours of thermal cycling, load-bearing, and noise-vibration tests, ensuring a service life exceeding OEM benchmarks by 20%. Designed for universal compatibility with mainstream passenger vehicles, it delivers smooth rotation, low heat generation (<80℃ under 120km/h), and reliable performance in extreme climates (-40℃ to +120℃), safeguarding drivetrain integrity while lowering long-term maintenance costs for end-users.
Crafted from 52100 high-carbon chromium steel (industry gold standard for bearings), our hubs feature a proprietary double-heat-treatment process: initial quenching to HRC62+ hardness (vs. industry avg. HRC58) for core strength, followed by induction tempering to eliminate internal stress. This reduces wear by 30% under heavy loads (tested per ASTM D2393) and extends service life to 150,000+ km (vs. OEM-rated 120,000 km), validated by third-party lab reports.
Leveraging CNC machines calibrated to ±0.002mm tolerance (tighter than ISO 4.0 standards), we achieve near-perfect roundness (≤0.001mm) and surface finish (Ra 0.4μm) on inner/outer races and rolling elements. This minimizes friction (coefficient reduced by 22% vs. standard bearings, per SAE J2521) and noise (≤55dB at 100km/h, tested in anechoic chambers), ensuring smoother drives and lower drivetrain energy loss.
Each batch undergoes 1,200+ hours of multi-stress testing per IATF 16949:2016: 300-hour thermal cycling (-40℃ to +120℃), 500-hour salt-spray corrosion resistance (ASTM B117), and 400-hour dynamic load fatigue (simulating 200,000 km). Only 98.5%+ pass rate units are shipped, backed by SGS and TÜV certifications – a 25% higher compliance rate than industry peers.
Designed with a universal fit profile (ID: 50-70mm, OD: 100-130mm, width: 25-45mm), our hubs align with 90% of mainstream passenger vehicle hub specifications (non-OEM-specific). This eliminates costly rework for repair shops and reduces inventory SKUs for distributors – confirmed by 85% of beta clients reporting “no adapter needed” installation.
| Category | Parameter | Specification | Testing Standard/Authority |
| Basic Dimensions | Inner Diameter (ID) | 50–70mm (universal range for mainstream passenger vehicles) | ISO 4.0 (Radial Bearing Dimensions) |
| Outer Diameter (OD) | 100–130mm | ISO 4.0 | |
| Width (W) | 25–45mm | ISO 4.0 | |
| Material & Heat Treatment | Steel Grade | 52100 High-Carbon Chromium Steel (ASTM A295 Grade 52100) | ASTM A295 (Steel for Bearings) |
| Hardness | Core: HRC 62±2; Surface: HRC 60±2 (post-double heat treatment) | ASTM E18 (Rockwell Hardness Test) | |
| Surface Treatment | Induction Hardening + Zinc-Nickel Electroplating (Thickness: 15–20μm) | ASTM A154 (Zinc Coating Standards) | |
| Precision & Tolerance | Raceway Roundness | ≤0.001mm (per bearing race) | ISO 1086 (Bearing Tolerances) |
| Ball Diameter Variation | ≤0.0005mm (per set of rolling elements) | ISO 355 (Tolerance for Rolling Bearings) | |
| Internal Clearance | C3 Group (0.010–0.025mm) – optimized for thermal expansion | ISO 5753 (Bearing Internal Clearances) | |
| Performance | Dynamic Load Rating (C) | 2500N (static: 5000N) – tested at 1 million revolutions (ISO 281) | ISO 281 (Dynamic Load Rating Calculation) |
| Max Rotational Speed | 12,000 RPM (dry); 8,000 RPM (lubricated) | ISO 15783 (High-Speed Bearing Testing) | |
| Operating Temperature Range | -40℃ to +120℃ (continuous); peak: +150℃ (short-term) | ASTM D2306 (Thermal Stability Testing) | |
| Durability | Fatigue Life | ≥150,000 km (simulated) – 20% longer than OEM benchmarks (SAE J2521) | SAE J2521 (Bearing Fatigue Testing) |
| Wear Rate | ≤0.005mm/1000 hours (under 1000N radial load) | ASTM D2393 (Wear Resistance Test) | |
| Certifications | Quality Management | IATF 16949:2016 (Automotive Quality System) | IATF (International Automotive Task Force) |
| Material Compliance | RoHS 2.0 (Lead, Cadmium, Mercury, Hexavalent Chromium free) | EU RoHS Directive 2011/65/EU |
Here are specific application scenarios of wheel hub bearing:
Ideal for urban vehicles with frequent stop-and-go driving, our bearings reduce vibration by 25% (tested via accelerometers at 30-60km/h) and noise to ≤58dB (compared to 65dB for standard bearings, per SAE J2521). This ensures a comfortable ride for drivers and passengers, even after 50,000+ km of daily commuting, validated by 3rd-party lab simulations of typical city routes.
Suited for regions with harsh winters or deserts, the bearings maintain performance in extreme temperatures: -40℃ cold-start capability (no cracking or stiffness) and <80℃ operating temp at 120km/h (ASTM D2306). Salt-spray tests (ASTM B117) confirm 500+ hours of corrosion resistance, critical for coastal or de-iced roads.
Optimized for highway trucks and RVs, the bearings sustain 12,000 RPM (dry) and 8,000 RPM (lubricated) without overheating (ISO 15783). Thermal imaging shows surface temps stabilize at 65-70℃ during 2-hour, 120km/h runs, reducing heat-related wear by 35% vs. industry averages (internal dyno tests).
With a universal design matching 90% of mainstream passenger vehicle hub specs (ID: 50-70mm, OD: 100-130mm), installers report 30% faster replacement vs. OEM-specific parts (beta test with 50+ repair shops). This reduces inventory complexity for wholesalers and lowers labor costs for end-users.
Clean the hub mounting surface with isopropyl alcohol to remove debris; inspect for cracks or burrs (critical to prevent stress concentration, per SAE J316). Ensure the bearing ID/OD matches your hub specs (tolerance: ±0.02mm).
Use a torque wrench (calibrated to ±3% accuracy) and socket (size: 17-19mm, universal fit). Tighten mounting bolts in a star pattern to 90-110 N·m (final torque after 50km drive: recheck to 100-120 N·m, per ISO 16130).
Fill the bearing cavity with 30-40g of high-temperature lithium-complex grease (NLGI 2 grade, e.g., Shell Gadus S2 V220C), avoiding overfilling (excess causes heat buildup).
Drive 50km at ≤80km/h initially; check for unusual noise (>58dB indicates misalignment) or vibration (accelerometer readings >0.5g require re-torque).
