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DD1101D-400/Bus Standard Axle

The Dongfeng DANA Coach Axle DD1101D-400 is the flagship product of the D400 series, specially developed for the 8.5-11 meter high-end coach market, with a rated load of 11,000 kg (the highest in the series) and a 135×150 mm high-strength stamped and welded axle housing.

Integrating DANA’s low-noise, high-power-density technology: maximum output torque of 30,000 Nm; gear noise reduced by 2-4 decibels compared to competitors; overall weight reduction of over 80 kg; increased reverse torque by 10% to optimize fuel efficiency for new energy vehicles;

maintenance interval of up to 100,000 kilometers. Standard heavy-duty air brake system (φ400×220 dedicated specification, compatible with 22.5″ wheel flange), wheelbase adjustable from 1,782 to 1,886 mm, paired with 8.25×22.5 wheel rims and 275/80R22.5 wide-base tires, with optional maintenance-free hub units.

DD1101D-400 Product Features

  • The axle housing section coefficient is better and the rear axle load capacity is stronger.

  • 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 80Kg 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:DD1101D-400
Rated Load (kg):11000
Axle Housing Type:Stamped and Welded
Axle Housing Cross-Section (mm):135×150
Rim Mounting Distance A (mm):1782-1886
Spring Distance B (mm):910-1040
Maximum Torque (N·m):30000
Speed Ratio: 3.55-6.14
Brake Type: Pneumatic Brake
Brake Specifications:φ400×180/ φ400×220, 22.5″
Air Chamber Center Distance C (mm):420-580
Adapted Wheel Rim:8.25×22.5
Adapted Tire:275/8OR22.5
Wheel Bolt Circumference D (mm):φ335
Wheel Bolts:10-M22x1.5
Lead Time:15 – 30 Working Days
Payment Terms:T/T ,L/C

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Model

Rated Load (kg)

Axle Housing Section (mm)

Rim Mounting Distance A (mm)

Spring Distance B (mm)

Maximum Torque (N·m)

Speed Ratio Series

DD1101D-40011000135×1501782-1886910-1040300003.55-6.14
DD0951D-4009500135×1501782-1886910-1040300003.55-6.14
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Basic information of bus ordinary bridge

ModelDD1101D-400Axle Housing TypeStamped and welded
Brake TypePneumatic BrakeBrake Specificationφ400×180/ φ400×220, 22.5″
Air Chamber Center Distance C (mm)420 – 580Adapted Wheel Rim8.25×22.5
Adapted Tire275/8OR22.5Wheel Bolt Distribution Circle D (mm)φ335
Wheel Bolt10-M22x1.5
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DCEC EQB125-20 Automotive Engine DATASHEET

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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