DF1301D-440/Bus Standard Axle
DF1301D-440 is Dongfeng DANA’s flagship coach drive axle in the D440 series, specially developed for high-end 10-13.7-meter highway coaches, with a rated load of 13,000 kg (the highest in the series). Featuring a 135×150mm high-strength stamped and welded axle housing, it delivers a maximum torque of 35,000 N·m.
Incorporating 15 global patent technologies, the assembly achieves a weight reduction of 26 kg, with gear noise reduced by 4-6 dB compared to competitors, and transmission efficiency improved by 2-3%.
It comes standard with dual-spec air brakes (φ410×180/φ410×220, compatible with 22.5″ rims), with a wheelbase adjustable between 1855-1886mm, compatible with 8.25×22.5 rims and 275/70R22.5 wide-base tires. It comes with a 3-year/300,000-kilometer warranty, with maintenance intervals exceeding 100,000 kilometers.
DF1301D-440 Product Features
Safe, reliable, efficient, comfortable, and with high maintenance intervals.
Warranty mileage increased by 50% to 300,000 kilometers in 3 years.
26Kg lighter than similar competitors, patented lubrication system improves transmission efficiency by 2-3%.
Under the same test conditions, the noise level is 4-6 decibels lower than similar competing products.
Maintenance interval mileage increased to 4 times the original, reaching 100,000 kilometers.
Safer braking and more reliable load-bearing.
Technical Specifications
| Platform: | DF1301D-440 |
| Rated Load (kg): | 13000 |
| Axle Housing Type: | Stamped and Welded |
| Axle Housing Cross-Section (mm): | 135×150 |
| Rim Mounting Distance A (mm): | 1855-1886 |
| Spring Distance B (mm): | 920-1030 |
| Maximum Torque (N·m): | 35000 |
| Speed Ratio: | 3.15-5.13 |
| Brake Type: | Pneumatic Brake |
| Brake Specifications: | φ410×180/ φ410×220, /22.5″ |
| Air Chamber Center Distance C (mm): | 450-551 |
| Adapted Wheel Rim: | 8.25×22.5 |
| Adapted Tire: | 275/70R22.5 |
| Wheel Bolt Circumference D (mm): | φ335 |
| Wheel Bolts: | 10-M22x1.5 |
| 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 |
| DD0951D-440 | 9500 | 135×150 | 1839-1896 | 940-1030 | 30000 | 3.15-6.14 |
| DF1101D-440 | 11000 | 135×150 | 1838-1892 | 920-1036 | 35000 | 3.15-6.14 |
| DF1301D-440 | 13000 | 135×150 | 1855-1886 | 920-1030 | 35000 | 3.15-5.13 |
| ——END—— | ||||||
Basic information of bus ordinary bridge | |||
| Model | DF1301D-440 | Axle Housing Type | Stamped and welded |
| Brake Type | Pneumatic Brake | Brake Specification | φ410×180/ φ410×220, 22.5″ |
| Air Chamber Center Distance C (mm) | 450 – 551 | Adapted Wheel Rim | 8.25×22.5 |
| Adapted Tire | 275/70R22.5 | Wheel Bolt Distribution Circle D (mm) | φ335 |
| Wheel Bolt | 10-M22x1.5 | ||
| ——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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