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JLM10494810-OR
HongPro
JLM10494810-OR
| Parameter Category | Parameter Item | Technical Parameter Value / Description | Test Standard / Notes |
| Basic Dimensions | Bore Diameter (d) | 25 - 100 mm (Common range: 25, 30, 34, 40, 50mm) | Tolerance: h6 or according to customer shaft fit requirements |
| Outside Diameter (D) | 50 - 150 mm (Common range: 52, 64, 76, 90mm) | Tolerance: H6 | |
| Width (B/C) | 20 - 60 mm (Depends on single/double row design, e.g., 37mm, 42mm) | Tolerance: ±0.3mm | |
| Performance Parameters | Dynamic Load Rating (Cr) | 20,000 - 80,000 N (Example: 33,500N @34mm bore) | ISO 281 |
| Static Load Rating (Cor) | 15,000 - 60,000 N (Example: 25,200N @34mm bore) | ISO 281 | |
| Limiting Speed | 1,500 - 3,500 rpm (Grease lubricated, higher for oil lubrication) | Depends on seal type and lubricant | |
| Stiffness | High rigidity design. Approx. 90 kN·mm/(°) increase in stiffness per 1mm increase in ball center spacing under 1000 kN·mm moment. | Larger contact angle (e.g., 40° vs 35°) significantly improves stiffness. | |
| Material & Heat Treatment | Ring & Ball Material | High-Carbon Chromium Bearing Steel Gcr15 (Equivalent to SAE 52100) | Complies with GB/T 18254-2002 |
| Cage Material | Stamped Steel Cage, Engineering Plastic (e.g., PA66+GF), or Copper Alloy | Plastic cages offer better noise reduction | |
| Heat Treatment | Through Hardening, Effective Case Hardening Depth ≥1.5 - 3mm | Hardness HRC 59-63 | |
| Precision & Tolerance | Dimensional Accuracy | P0 (Normal) to P6 (High) available | Typically P5 or P6 ex-factory |
| Running Accuracy | P5: Inner ring radial runout ≤0.02mm, P6: ≤0.015mm | According to JB/T 10238-2011 | |
| Radial Clearance | C0 to C3 groups available (Commonly C2/C3 preload clearance) | Selected based on operating conditions | |
| Sealing & Lubrication | Seal Type | Double-sided contact rubber seals (RS/2RS) | Optional with magnetic encoder or ABS sensor interface |
| Lubricating Grease | General Purpose Automotive Lithium Grease | Filling Quantity: 15%-30% of internal space | |
| Mud & Water Resistance | Passes mud/water resistance test (e.g., Appendix C of JB/T 14580) | Seal lip pressure ≥0.5MPa | |
| Durability & Reliability | Life Rating | L10 Life ≥ 300,000 km (Based on standard road load simulation) | Bench test standard Appendix C of JB/T 10238 |
| Endurance Test | Passes intensified endurance test (Appendix F of T/ZZB 0274) | No spalling/cracks after test, temperature rise ≤50℃ | |
| Friction Torque | Starting Torque ≤0.5 N·m, Running Torque ≤2.0 N·m | Appendix E of JB/T 14580 | |
| Environmental Adaptation | Operating Temperature | -40℃ to +120℃ (Short-term up to +150℃) | Determined by grease and seal material |
| Anti-Corrosion Treatment | Phosphating or Zinc Plating (Optional) | Prevents rust during transportation and storage | |
| Installation & Maintenance | Mounting Bolt Strength | Property Class 8.8 or higher (Complies with GB/T 3098.1) | Tightening torque according to Appendix B of JB/T 10238 |
| Unit Assembly Weight | 0.3 - 5 kg (Depends on size, e.g., 25x52x37mm approx. 0.31kg) | / | |
| Certification & Standards | Compliance Standards | JB/T 10238-2011, JB/T 14580-2023, T/ZZB 0274-2022 | Optional CE, ISO9001 certification |
| Vibration Level | Z2 Group (Low Vibration) or Z3 Group (Ultra-Low Vibration) | According to GB/T 24610.2 | |
| Residual Magnetism | ≤0.5 mT | JB/T 6641 |
Here are specific application scenarios of wheel hub bearing:
Under the working condition of frequent starts and stops on urban roads, the wheel hub bearing operates continuously and stably, efficiently supporting the rotation of the wheels and easily adapting to frequently changing vehicle speeds. With its excellent low-friction design, it effectively reduces energy consumption and saves costs for your daily travel.
When the vehicle speed reaches the high-speed range, the wheel hub bearing demonstrates outstanding high-speed stability. It can accurately resist the strong centrifugal force and vibration generated by high-speed driving, ensuring the wheels always maintain stable operation, building a solid safety barrier for your high-speed journey and allowing you to enjoy a worry-free trip.
Facing bumpy and rough roads, the wheel hub bearing gives full play to its strong adaptability. Its robust structural design enables it to calmly withstand the impact force brought by complex road conditions, significantly reducing the vibration during vehicle driving and creating a comfortable riding experience for you.
At the moment of braking, the wheel hub bearing responds quickly and effectively assists the brake system in smooth braking. With good braking coordination, it not only shortens the braking distance but also ensures the stability of the braking process, greatly improving the braking safety of the vehicle.
Whether in wet rainy days or cold winter, the wheel hub bearing can operate reliably. Its excellent waterproof, dustproof and cold-resistant performance can effectively prevent the intrusion of moisture and dust, and at the same time, it is not afraid of low-temperature challenges, always maintaining a good working state.
For optimal performance and safety, always use a torque wrench (80-120 N·m torque recommended) to secure the bearing assembly. Ensure the hub and mounting surfaces are clean and free of corrosion. Apply high-temperature grease to the splines if applicable. After installation, perform a road test to check for unusual noises or vibrations.
