QT300 Hub Reduction Drive Axle (the 4th generation)

Short Description:

1. Longer reliability fatigue life: Reaching max output torque of 55000Nm and reliability lifetime increased by 40%.

2. Higher loading capacity: Housing with unequal wall thickness, add reinforcement ribs on radius area, use box section structure for spring saddle area.

3. Higher gear fatigue life: Using one-piece crown gear with higher supporting stiffness.

4. More simplified assembly process: Using one-piece design of carrier to reduce components quantity.

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Product Detail

Product Tags

Product Parameters

Item	Parameters
Loading Capacity（kg）	13000/pc
Wheel Track（mm）	1804～1880
Spring Center Distance（mm）	960、1035、1040
Housing Section Size（mm）	170×170×18
Crown Gear PCD（mm）	Φ300
Input and Output Flange Size （mm）	Φ180 Face Tooth (ISO8667-T180)
Rated Output Torque（Nm）	55000
Speed Ratio	3.867,4.143,4.267,4.571,4.77,4.8,5.143,5.263,5.459,5.849,5.921,6.73
Brake Size（mm）	Φ410×220
Brake Cylinder Size（in）	30/30 27/27
Brake Torque（Nm）	29810
Axle weight（kg）	Rear axle 814 /Middle axle 914 (Casted axle housing)
Wheel Mounting and Size （mm）	Located by rim center hole， wheel bolt 10×M22×1.5，PCD Φ335
Optional Function	ABS、Automatic adjuster
Custom-made design and configuration are available

Product Features

1. Longer reliability fatigue life: Reaching max output torque of 55000Nm and reliability lifetime increased by 40%.

2. Higher loading capacity: Housing with unequal wall thickness, add reinforcement ribs on radius area, use box section structure for spring saddle area.

3. Higher gear fatigue life: Using one-piece crown gear with higher supporting stiffness.

4. More simplified assembly process: Using one-piece design of carrier to reduce components quantity.

5. Better heat radiation function: Adding 17 heat-radiation ribs dispersed from outside of carrier, enlarging heat-radiation area of carrier.

6. Improved torque-transmission capability: Updating differential bearing support structure and increasing crown gear supporting stiffness to improve the torque-transmission ability by more than 10%.