德纳440后桥
We mainly deals in Dongfeng truck accessories (engine/axle/gearbox/cabin), especially Dana axle accessories and Cummins engine parts (4BT, 6BT, 6CT, 6L, ISBE, ISDE, ISLE,ISF2.8, ISF3.8, NTA855, KTA19,KTA38, KTA50, M11, ISM, etc.) with great advantages.
Product Descreiption
The Dana 440 Rear Axle is a heavy-duty, high-performance drive axle engineered for commercial vehicles, vocational trucks, buses, and industrial machinery. Designed to deliver exceptional strength, reliability, and adaptability, the Dana 440 Rear Axle excels in severe-duty applications, including construction, mining, logging, and long-haul transportation. Its robust construction, modular design, and advanced engineering make it a trusted choice for operators demanding uncompromising durability and efficiency.
Key Specifications
- Rated Load Capacity:
- Gross Axle Weight Rating (GAWR): Up to 13,600 kg (30,000 lbs), ideal for heavy-duty trucks and multi-axle configurations.
- Cumulative load support in tandem/tri-axle systems: Over 40,000 kg (88,000 lbs) when paired with Dana middle/front axles.
- Gear Ratio Options:
- Standard ratios: 3.91:1, 4.10:1, 4.56:1, 5.13:1, and 6.17:1 (customizable for torque and speed requirements).
- Optional high-speed or low-end torque configurations for specialized applications.
- Axle Type:
- Full-floating design with high-strength axle shafts and removable hubs for easy maintenance.
- Differential options: Open, limited-slip, lockable, or electronic traction control (ETC).
- Brake System Compatibility:
- Supports large-diameter drum brakes (up to 457 mm/18 inches) or heavy-duty disc brakes (vented rotors with multi-piston calipers).
- ABS and ESC system integration for enhanced safety.
- Material & Construction:
- Axle housing: Forged alloy steel or nodular iron with reinforced ribbing for torsional stiffness.
- Axle tubes: 130–150 mm diameter, 12–15 mm wall thickness.
- Gears: Case-carburized and ground spiral bevel gears for quiet, efficient power transmission.
- Dimensions:
- Overall width: 1,800–2,200 mm (adjustable based on vehicle frame and track width).
- Weight: Approximately 320–380 kg (configuration-dependent).
Technical Features
- Extreme Durability:
- Corrosion-resistant coatings (e-coat, zinc-nickel plating) for longevity in harsh environments.
- Heat-treated gears and shafts resist wear and fatigue under high-load conditions.
- High Torque & Efficiency:
- Optimized gear tooth design and high-contact ratios ensure smooth power delivery.
- Low-friction seals and bearings reduce energy losses.
- Modularity & Integration:
- Compatible with Dana’s Spicer® AdvanTEK® gearing technology for seamless multi-axle setups.
- Plug-and-play wheel end and brake designs simplify retrofits and upgrades.
- Serviceability:
- Easy access to differential service ports and replaceable wear components.
- Extended service intervals (up to 200,000 km with synthetic gear oil).
- NVH Optimization:
- Precision-machined components and vibration-damping mounts minimize noise and harshness.
