DF252S | Bus steering axle
DF252S is a high-performance steering axle of Dongfeng Dana F series, which adopts an I-beam structure and has a rated load of up to 2500kg (the highest in the series).
The core parameters are accurately adapted to the heavy-duty demand: wheelbase covers 1824.5-2106mm with ultra-wide adjustment, rim mounting distance 1565-1766mm with flexible layout; main pin center distance 1385-1552mm optimizes the steering performance, and the front axle drop 95mm strengthens the passability.
It is equipped with an oil brake system (supporting 15° and 16° rim specifications), 215/75R17.5 wide base tires and 17.5″ rims, and the steering angle of the outer wheels reaches 38.4°, and the bolts adopt 5-M18×1.5, which can satisfy the requirements of stability and load bearing under complicated working conditions.
DF252S Product Features
Craftsmanship and Load Capacity: Features a flange-forged I-beam structure with advanced technology, offering solid and reliable load-bearing capacity, covering 2.5 to 3.2-ton requirements.
Braking Performance: Standard equipped with air brake calipers (e.g., the F2.7 series uses Ø420×80 specifications), with optional ABS anti-lock braking system and automatic brake gap adjusters for efficient and stable braking.
Lightweight and Adaptability: Lightweight bridge design with adjustable kingpin and wheelbase, suitable for various commercial vehicle scenarios.
Maintenance Convenience: Requires the application of No. 2 lithium grease every 2000km, with long-lasting key components to reduce operational costs.
Technical Specifications
| Category: | Steering Axle |
| Platform: | DF252S |
| Basic Structure: | I-beam |
| Rated Load (kg): | 2500 |
| Brake Structure/Specifications: | Oil brake/15″、 16″ |
| Maximum External Width A (mm): | 1824.5-2106 |
| Rim Installation Distance B (mm): | 1565-1766 |
| Kingpin Center Distance C (mm): | 1385-1552 |
| Spring Distance D (mm): | 750-860 |
| Front Axle Drop (mm): | 95 |
| Kingpin Inclination/Wheel Camber: | 12°/0.5° |
| Inner Wheel Steering Angle/Outer Wheel Steering Angle: | 38.4° |
| Rim: | 6.00×17.5 |
| Tire: | 215/75R17.5 |
| Wheel Bolts: | 5-M18×1.5 |
| Wheel Bolt Circle E (mm): | φ203.2 |
| Wheel Toe (mm): | 1 – 3 |
| Air Chamber Interface Dimensions: | NPT1/4 |
| Lead Time: | 15 – 30 Working Days |
| Payment Terms: | T/T, L/C |
Model | Rated Load (Kg) | Brake Structure Form/Specification | Maximum Outer Width A (mm) | Wheel Rim | Tire | Wheel Bolt |
| DF252S | 2500 | Oil brake/15″、16″ | 1824.5 – 2106 | 6.00×17.5 | 215/75R17.5 | 5 – M18×1.5 |
| DF271S | 2700 | Air brake/φ310×100、17.5″ | 1754 – 2468 | 6.00×17.5 | 215/75R17.5 | 6 – M18×1.5、6 – M20×1.5 |
| DF302S | 3000 | Air brake/φ310×120、φ310×130、17.5″ | 2053.5 – 2209 | 6.00×17.5 | 215/75R17.5 | 6 – M18×1.5、6 – M20×1.5 |
| ——END—— | ||||||
Basic information of bus steering axle | |||
| Category | Steering Axle | Basic Structure Form | I – beam |
| Wheel Rim Installation Distance B (mm) | 1565 – 1766 | Kingpin Center Distance C (mm) | 1385 – 1552 |
| Spring Distance D (mm) | 750 – 860 | Front Axle Drop (mm) | 95 |
| Kingpin Inclination Angle/Wheel Camber Angle | 12°/0.5° | Inner Wheel Steering Angle/Outer Wheel Steering Angle | 38.4° |
| Wheel Bolt Distribution Circle E (mm) | φ203.2 | Wheel Toe – in (mm) | 1-3 |
| Air Chamber Interface Size | NPT1/4 | ||
| ——END—— | |||

Note: All Above Data are Just for Reference, All Data Might Change Without Notices or Updates, Please Contact Our Sales Team to Confirm All Details Via WhatsApp or Email.

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