Dongfeng truck 440 Half shaft
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 Dongfeng Truck 440 Half Shaft is a high-performance drivetrain component engineered for heavy-duty commercial trucks, including the Dongfeng EQ153, EQ1168, EQ1208, and similar 6×4 or 8×4 models. Designed to handle extreme torque, heavy payloads, and rugged operating conditions, this half shaft ensures reliable power transmission, durability, and long service life in demanding applications such as construction, mining, and long-haul transportation.
Key Applications
- Dongfeng Truck Models:
- EQ153, EQ1168, EQ1208, EQ1250, and other heavy-duty dump trucks, cargo carriers, and tankers.
- Special-purpose vehicles (e.g., fire trucks, military transports).
- Industrial Use:
- Construction logistics, mining fleets, agricultural machinery, and off-road equipment.
Technical Specifications
- Material & Construction:
- Primary Material: High-strength alloy steel (42CrMo or equivalent) with a tensile strength of ≥1,080 MPa (156,600 psi).
- Surface Treatment:
- Induction hardening (case depth: 4–6 mm / 0.16–0.24 inches) for a surface hardness of HRC 55–60.
- Zinc-nickel plating or black oxide coating for superior corrosion resistance.
- Splines: Precision-machined splines (32–36 teeth) with a modulus of 3.0–3.5 for secure torque transfer.
- Key Dimensions (Example: Dongfeng 440 Series Half Shaft):
- Total Length: ~1,500–1,800 mm (59.1–70.9 inches) (varies by truck model).
- Outer Diameter (Shaft Body): ~65–80 mm (2.56–3.15 inches).
- Flange Diameter (Wheel End): ~180–200 mm (7.09–7.87 inches) with 8–10 bolt holes (M16–M18).
- Weight: ~25–30 kg (55.1–66.1 lbs).
- Design Features:
- One-Piece Forged Design: Eliminates welded joints for enhanced strength and fatigue resistance.
- High-Capacity CV Joints:
- Double-offset ball-type CV joint at the differential end for high-angle torque transmission.
- Plunge-type tripod CV joint at the wheel end for axial movement compensation.
- Reinforced Boots: High-temperature, tear-resistant rubber boots with stainless-steel clamps to protect CV joints from debris and moisture.
- Performance Ratings:
- Maximum Torque Capacity: ~3,500–4,000 N·m (2,581–2,950 lb·ft) (depending on truck configuration).
- Operating Speed: Up to 2,500 RPM (continuous) and 3,500 RPM (peak).
- Temperature Range: -40°C to +150°C (-40°F to +302°F).
- Fatigue Life: >1,500,000 cycles under full load (tested per ISO 16750-3 standards).
