德纳桥总成, 产品中心

The 德纳TD440 双驱动桥 is a heavy-duty, tandem drive axle system engineered for high-payload commercial vehicles, off-highway machinery, and industrial applications. Designed to deliver exceptional torque distribution, load capacity, and durability, the TD440 excels in severe-service environments such as construction, mining, logging, and long-haul transportation. Its modular design, advanced gearing technology, and robust construction make it a trusted choice for operators requiring reliable performance under extreme conditions.

Key Specifications

1. Rated Load Capacity:
   • Gross Axle Weight Rating (GAWR):
     • Each axle: Up to 13,600 kg (30,000 lbs).
     • Total System Capacity: Up to 27,200 kg (60,000 lbs) for tandem configurations.
   • Cumulative Load Support: Ideal for multi-axle setups (e.g., tri-axle trucks) supporting total vehicle weights exceeding 80,000 kg (176,000 lbs).
2. Gear Ratio Options:
   • Standard Ratios: 3.42:1, 3.73:1, 4.10:1, 4.56:1, 5.13:1, and 6.17:1 (customizable for torque, speed, and fuel efficiency).
   • Advanced Gearing: Optional Spicer® AdvanTEK® technology for reduced friction, noise, and improved powertrain efficiency.
3. Axle Type & Configuration:
   • Full-Floating Design: High-strength axle shafts with removable hubs for easy maintenance and serviceability.
   • Inter-Axle Differential (IAD):
     • Standard open differential for even torque split between axles.
     • Optional locking differential (manual or automatic) for improved traction in low-grip conditions.
   • Individual Axle Differentials:
     • Open differential (standard).
     • Limited-slip differential (LSD) for enhanced traction.
     • Locking differential for off-road/heavy-traction applications.
4. Brake System Compatibility:
   • Drum Brakes: Up to 457 mm (18 inches) diameter with S-cam or wedge actuators for heavy-duty stopping power.
   • Disc Brakes: Vented rotors with multi-piston calipers for superior heat dissipation and fade resistance.
   • ABS/ESC Integration: Standard anti-lock braking and electronic stability control compatibility for safety.
5. Material & Construction:
   • Axle Housing: Forged alloy steel or nodular iron with reinforced ribbing for maximum torsional stiffness.
   • Axle Tubes: 140–160 mm diameter, 14–16 mm wall thickness for unparalleled load support.
   • Gears: Case-carburized and ground spiral bevel gears for quiet, efficient power transmission.
6. Dimensions & Weight:
   • Overall Width (Tandem Setup): 2,800–3,200 mm (110–126 inches) (adjustable based on vehicle frame and track width).
   • Individual Axle Weight: Approximately 340–380 kg (750–840 lbs) each.
   • Total System Weight: Approximately 680–760 kg (1,500–1,675 lbs).

Technical Features

1. Extreme Durability:
   • Corrosion-resistant coatings (e-coat, zinc-nickel plating) for longevity in harsh environments.
   • Heat-treated gears, shafts, and bearings resist wear under high-load, high-cycle conditions.
2. High Torque & Efficiency:
   • Optimized gear tooth profiles and high-contact ratios reduce friction and energy loss.
   • Low-friction seals and bearings extend service intervals and improve fuel economy.
3. Modular & Scalable Design:
   • Compatible with Dana’s Spicer® Pro-40™ and AdvanTEK® technologies for seamless integration with multi-axle systems.
   • Plug-and-play wheel end, brake, and suspension components simplify retrofits and upgrades.
4. Serviceability & Maintenance:
   • Easy access to differential service ports, lubrication points, and replaceable wear components.
   • Extended service intervals (up to 200,000 km with synthetic gear oil).
5. NVH Optimization:
   • Precision-machined gears and vibration-damping mounts minimize noise and harshness.

Applications

• Commercial Vehicles:
  • Heavy-haul trucks (e.g., dump trucks, lowbed trailers, tankers, logging trucks).
  • Buses (e.g., articulated transit vehicles, intercity coaches).
• Industrial & Off-Highway:
  • Construction and mining equipment (e.g., articulated dump trucks, haul trucks, loaders, excavators).
  • Forestry machinery (e.g., tree harvesters, forwarders, skidders).
  • Agricultural equipment (e.g., high-capacity sprayers, self-propelled combines).
• Military & Specialty:
  • Tactical vehicles, mobile cranes, and disaster-response equipment.