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Views: 0 Author: Site Editor Publish Time: 09-19-2025 Origin: Site
Premium driveshaft support solutions for commercial vehicles in North & South America – Engineered for durability, NVH performance, and easy installation
The Center Support Bearing (also known as Hanger Bearing) is a critical component in multi-piece prop shaft systems, designed to maintain driveline alignment, dampen vibrations, and support radial loads. For commercial vehicles operating in demanding conditions across North and South America, a high-quality CSB is essential to prevent premature drivetrain wear, reduce maintenance costs, and ensure driver comfort.
Hebei Huami New Material Technology Co., Ltd. brings three decades of expertise in rubber anti-vibration components, backed by TÜV certification and AEO Advanced status. Our CSB products are engineered specifically for the rigorous demands of North and South American commercial vehicle fleets.
High-Damping Rubber Formulations – Choose NBR for oil resistance or EPDM for extreme temperature and ozone resistance
Sealed Deep-Groove Bearings – Double-lip seals prevent contamination in dusty and wet environments
Heavy-Duty Steel Brackets – Precision-stamped and powder-coated for maximum structural integrity
Customization Capabilities – OE number matching, drawing-based production, and small-lot order flexibility
Rapid Prototyping – 48-hour sample delivery for urgent fleet maintenance needs
A properly functioning CSB system is critical for maintaining driveline harmony and minimizing NVH (Noise, Vibration, Harshness) issues. The assembly consists of three integrated components working together:
Bracket Housing – Bolts to the chassis, providing structural stability and load distribution
Rubber Isolator – Absorbs radial and axial displacement while damping torque fluctuations during acceleration and gear shifts
Precision Bearing – Maintains concentricity and reduces friction, with sealed design to prevent contaminant ingress
Huami engineers carefully calibrate rubber hardness (55–80 Shore A) and bearing pre-load to ensure stable performance across typical commercial vehicle speed bands (30–90 km/h). This precision engineering eliminates shudder and whine that can lead to driver fatigue and increased maintenance.
Understanding failure modes helps fleet managers and technicians diagnose issues before catastrophic driveline damage occurs:
Cracking or delamination typically presents as cold-start shaking or thumping during acceleration. This often results from material under-hardness or oil contamination in the operating environment.
Water ingress or lubrication loss causes a distinctive whine between 60–90 km/h. Technicians will notice measurable radial play during inspection, indicating the need for immediate replacement.
Bracket deformation or loose mounting bolts create cabin booming noises and visible driveline eccentricity. This often results from improper torque application during installation or material fatigue in overloaded applications.
Proper selection ensures first-time fit and optimal performance. Follow these steps when specifying a replacement center support bearing:
Providing the original equipment number guarantees the closest match to factory specifications. Huami maintains an extensive OE cross-reference database for North American vehicle models.
Center Height – Distance from chassis mounting surface to shaft centerline (±0.5mm tolerance)
Bearing Dimensions – Inner diameter (d), outer diameter (D), and width (B) as specified by bearing code (e.g., 6206, 6208)
Bracket Pattern – Hole spacing and mounting base dimensions for proper chassis fitment
| Application Type | Recommended Hardness (Shore A) | Material Choice |
|---|---|---|
| Comfort/Light Duty | 55–60A | NBR |
| General Road Service | 60–70A | NBR |
| Heavy Duty/High Temperature | 70–80A | EPDM |
| Mining/Extreme Conditions | 75–80A | EPDM with Reinforced Seals |
Proper installation is critical to CSB performance and longevity. Follow these guidelines for commercial vehicle applications:
Ensure vehicle is properly lifted and secured; mark prop shaft phasing before disassembly
Verify center height and mounting surface integrity on chassis
Install bracket first, torquing to specifications in crisscross pattern
Mount prop shaft and bearing assembly, ensuring proper alignment
Perform road test at varying speeds (30/60/90 km/h) to verify NVH performance
| Bolt Size | Bracket Torque (Nm) | Flange Torque (Nm) | Recommended Bolt Grade |
|---|---|---|---|
| M10 | 45–55 | 50–60 | 8.8 |
| M12 | 70–85 | 75–90 | 8.8 |
| M14 | 110–130 | 115–140 | 10.9 |
Huami's engineering team is ready to support your specific application needs. Whether you require OE-matched replacements, custom hardness formulations, or urgent fleet maintenance solutions, we deliver quality components with North American commercial vehicle expertise.
Email: sales@hmxj.com
WhatsApp: +86 166 3293 7333
Provide your vehicle model, OE number, or dimensional requirements, and receive a personalized quotation within 24 hours.
