DF0502D-285 | Bus Ordinary bridge
The DF0502D-285 is the flagship drive axle of the Dongfeng DANA D285 series, specifically developed for the high-end bus market targeting 5-6 meter vehicles.
It features a rated load capacity of 5,000 kg (the highest in the series), utilizing a reinforced welded axle housing with dimensions of 102×110 mm (the largest cross-section in the series), and an axle housing fatigue life exceeding 1.1 million cycles (2.5 times the national standard)..
Exclusively equipped with an air brake system (φ310×150/φ310×160 dual specifications, 17.5° flange), compatible with 6.0-17.5 rims and 215/75R17.5 wide-base tires. Integrating DANA’s high-power-density gear technology, the bevel gear lifespan reaches up to 1.35 million cycles, combining high reliability, low noise, and lightweight advantages, making it the flagship power solution for 5-6 meter buses.
DF0502D-285 Product Features
The axle housing features a lightweight, serialized design, facilitating vehicle layout and compatibility with multiple models.
Axle housing fatigue life: Averages over 1.1 million cycles at 2.5 times full load, far exceeding national standards.
The median fatigue life of the bevel gear gantry ranges from a minimum of 950,000 cycles to a maximum of 1.35 million cycles.
DANA’s patented high-power density gear and low-noise design technology reduces gear weight, improves gear strength, extends gear life, and reduces noise.
Technical Specifications
| Platform: | DF0502D-285 |
| Rated Load (kg): | 5000 |
| Axle Housing Type: | Stamped and Welded |
| Axle Housing Cross-Section (mm): | 102×102 |
| Rim Mounting Distance A (mm): | 1525 – 1688.5 |
| Spring Distance B (mm): | 880 – 968 |
| Maximum Torque (N·m): | 10000 |
| Speed Ratio: | 4.33-6.14 |
| Brake Type: | Pneumatic Brake |
| Brake Specifications: | φ310×150、φ310×160、17.5″ |
| Air Chamber Center Distance C (mm): | 442 – 458 |
| Adapted Wheel Rim: | 6.0-17.5 |
| Adapted Tire: | 215/75R17.5 |
| Wheel Bolt Circumference D (mm): | φ222.25 |
| Wheel Bolts: | 6 – M20×1.5 |
| Lead Time: | 15 – 30 Working Days |
| Payment Terms: | T/T ,L/C |
Model | Rated Load (kg) | Axle Housing Section (mm) | Rim Mounting Distance A (mm) | Spring Distance B (mm) | Maximum Torque (N·m) | Speed Ratio Series |
| DF0502D-285 | 5000 | 102×110 | 1525 – 1688.5 | 880 – 968 | 10000 | 4.33 – 6.14 |
| DF0402D-285 | 4000 | 102×102 | 1582.5 – 1673 | 892 – 952 | 10000 | 4.33 – 6.14 |
| DF0302D-285 | 3000 | 102×102 | 1533 – 1760 | 830 – 1060 | 10000 | 4.33 – 6.14 |
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Basic information of bus ordinary bridge | |||
| Model | DF0502D-285 | Axle Housing Type | Stamped and welded |
| Brake Type | Pneumatic Brake | Brake Specification | φ310×150, φ310×160, 17.5″ |
| Air Chamber Center Distance C (mm) | 442 – 458 | Adapted Wheel Rim | 6.0 – 17.5 |
| Adapted Tire | 215/75R17.5 | Wheel Bolt Distribution Circle D (mm) | φ222.25 |
| Wheel Bolt | 6 – M20×1.5 | ||
| ——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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