DD0701D-350/Bus Standard Axle
DD0701D-350 is Dongfeng DANA’s D350 series coach drive axle, designed specifically for the 7-9 meter coach market, with a rated load of 7500 kg.
Features a 120×135mm high-strength welded axle housing (with fatigue life up to 2.5 times that of competitors), incorporating DANA’s low-noise, high-power-density technology: gear noise reduced by 2-4 decibels compared to competitors, overall weight reduced by over 30 kg, and reverse torque increased by 10% to optimize fuel efficiency for new energy vehicles, with maintenance intervals exceeding 100,000 kilometers.
Standard air brake system (φ360×160 or φ400×180 dual specifications, 19.5″ rim), compatible with 7.50×19.5 rims and 245/70R19.5 tires, wheelbase adjustable between 1,700-1,800 mm, optional maintenance-free hub units.
DD0701D-350 Product Features
The axle housing has a better cross-sectional coefficient, the rear axle has a stronger load-bearing capacity, and the fatigue life is 2.5 times that of competing products.
Adopting DANA gear design, manufacturing and testing technology, the noise level is 2-4 decibels lower than that of competing products.
Lightweight design, the rear axle assembly is more than 30Kg lighter than similar axles.
High power density design increases anti-drag torque by 10%, which helps improve the economy of new energy vehicles.
The maintenance interval mileage has been increased to four times the original time, reaching 100,000 kilometers.
Technical Specifications
| Platform: | DD0701D-350 |
| Rated Load (kg): | 7500 |
| Axle Housing: | Stamped and Welded |
| Axle Housing Cross-Section (mm): | 120×135 |
| Rim Mounting Distance A (mm): | 1700-1800 |
| Spring Distance B (mm): | 820-1010 |
| Maximum Torque (N·m): | 20000 |
| Speed Ratio: | 4.33-6.14 |
| Brake Type: | Pneumatic Brake |
| Brake Specifications: | φ360×160,φ400×180, 19.5″ |
| Air Chamber Center Distance C (mm): | 380 – 460 |
| Adapted Wheel Rim: | 7.50×19.5 |
| Adapted Tire: | 245/70R19.5 |
| Wheel Bolt Circumference D (mm): | φ275 |
| Wheel Bolts: | 8-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 |
| DD0701D-350 | 7500 | 120×135 | 1700-1800 | 820-1010 | 20000 | 4.33 – 6.14 |
| DD0601D-350 | 6500 | 120×135 | 1680-1720 | 820-1010 | 20000 | 4.33 – 6.14 |
| DD0801D-350 | 8500 | 120×135 | 1800-1860 | 820-1010 | 20000 | 4.33 – 6.14 |
| ——END—— | ||||||
Basic information of bus ordinary bridge | |||
| Model | DD0701D-350 | Axle Housing Type | Stamped and welded |
| Brake Type | Pneumatic Brake | Brake Specification | φ360×160/ φ400×180, 17.5″ |
| Air Chamber Center Distance C (mm) | 380 – 460 | Adapted Wheel Rim | 7.50×19.5 |
| Adapted Tire | 245/70R19.5 | Wheel Bolt Distribution Circle D (mm) | φ275 |
| Wheel Bolt | 8-M20x1.5 | ||
| ——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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