DF271SD-305 | Steering axle
DF271SD-305 is a high-performance steering drive axle of the F2.7SD platform, adopting a cast axle shell structure, with a rated load of 2700kg.
It is equipped with air brake braking system as standard (exclusive specification of φ360×130).
Wheelbase supports flexible adjustment of 2014-2140mm, and the rim mounting distance of 1735-1824mm is accurately laid out; The center distance of the main pin is fixed at 1496mm to optimize the steering rigidity.
Maximum output torque of 11,000N-m, speed ratio of 4.88-6.33 wide matching, suitable for 6×19.5 rims and 8R19.5 tires, wheel bolts 6-M20×1.5, the inner wheel steering angle of up to 31 °, to meet the demand for reliability of medium and heavy-duty commercial vehicles in multiple working conditions.
DF271SD-305 Product Features
Heavy Load Braking: Standard equipped with large air brake calipers (F2.7SD caliper specification Ø420×80, F3.3SD is Ø400×110), ensuring efficient and stable braking, with optional ABS and automatic brake gap adjusters.
Structure Reinforcement: Utilizes flange-forged I-beam technology, with load-bearing capacity covering 2.7 to 3.3 tons; adjustable wheelbase (F2.7SD wheelbase 1661-1945mm), suitable for various vehicle layouts.
Maintenance Convenience: Forced lubrication design requires the application of No. 2 lithium grease every 2000km, with long-lasting key components to reduce operational costs.
Adaptability Expansion: Supports customized configurations (such as hubs, differentials), compatible with new energy electric drive axle technology, meeting the needs of both traditional fuel and electric vehicle models.
Technical Specifications
| Category: | Technical Parameters |
| Platform: | DF271SD-305 |
| Basic Structure: | Casting bridge |
| Rated Load (kg): | 2700 |
| Brake Structure/Specifications: | Air brake/φ360×130 |
| Maximum External Width A (mm): | 2014-2140 |
| Rim Installation Distance B (mm): | 1735-1824 |
| Kingpin Center Distance C (mm): | 1496 |
| Spring Distance D (mm): | 740、850 |
| Maximum Output Torque (N·m): | 11000 |
| Speed Ratio： | 4.88-6.33 |
| Kingpin Inclination/Wheel Camber: | 8/1° |
| Inner Wheel Steering Angle/Outer Wheel Steering Angle: | 31° |
| Rim: | 6 × 19.5 |
| Tire: | 8R19.5 |
| Wheel Bolts: | 6-M20×1.5 |
| Wheel Bolt Circle E (mm): | φ222.25 |
| Wheel Toe (mm): | 1 – 3 |
| Air Chamber Interface Dimensions: | NP1/4 、Z1/4 |
| Lead Time: | 15 – 30 Working Days |
| Payment Terms: | T/T, L/C |
Model | Rated Load (kg) | Brake Structure Form/Specification | Maximum External Width A (mm) | Rim | Tire | Wheel Bolts |
| DF271SD – 305 | 2700 | Air brake/φ360×130 | 2014 – 2140 | 6×19.5 | 8R19.5 | 6 – M20×1.5 |
| DF331SD – 360 | 3300 | Air brake/φ400×110 | 2252.5 – 2359 | 8.25 – 20 | 12.5R20 | 10 – M20×1.5 |
| ——END—— | ||||||
Basic information of truck steering axle | |||
| Category | Technical Parameters | Basic Structure Form | Cast Axle Housing |
| Rim Mounting Distance B (mm) | 1735 – 1824 | Kingpin Center Distance C (mm) | 1496 |
| Spring Distance D (mm) | 740、850 | Maximum Output Torque (N·m) | 11000 |
| Speed Ratio | 4.88 – 6.33 | Kingpin Inclination/Wheel Camber | 8°/1° |
| Inner Wheel Steering Angle | 31° | Wheel Bolt Distribution Circle E (mm) | φ222.25 |
| Wheel Toe – in (mm) | 1-3 | Air Chamber Interface Size | NPT1/4、 Z1/4 |
| ——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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