What's Axle
Axles refer to the axle units within the running system of automobiles, and consist of components such as the axle case, gears and brakes. Axles are classified into the following types: front axle, rear drive axle and rear dead axle.
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＜Truck＞
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＜Pickup Truck＞
Function
In most trucks, the front axle takes the weight of the vehicle and is used for steering. All-wheel-drive vehicles, the front axle also transfers driving force to the front wheels.
The rear axle is classified into the drive axle, which takes the weight of the vehicle and transfers driving force to the wheels, and the dead axle, which helps take the weight of the vehicle.
Production Process
①Forming
An axle case is divided into upper and lower steel plates that are stamping. For large axle cases, steel plates 14 mm thick are heated and stamped with a large 3,000-ton press.
②Welding assembling
The stamping axle case, forged end tubes, and brackets are mostly assembled using arc welding. A robot is employed for the welding process to save on labor.
Video: Automation line of welding
and assembling axle housings
③Machining
After the welding has been completed, the axle case undergoes machining and polishing on the end tubes (located at either end) and the mounting surface of the differential carrier (located in the center).
④Axle unit assembly
Such peripheral components as the differential gear, axle shaft, hubs, and brakes are mounted onto the axle case, then it is coated and finished.
Axle Type
Axles for Heavy Duty Truck
Length=2.2m Mass=400-720kg
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Cargo Truck (8×4)
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Rear-Front Axle Unit for Heavy Duty Truck -
Rear-Rear Axle Unit for Heavy Duty Truck -
Cargo Truck (6×2)
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Rear Axle Unit for Heavy Duty Truck -
Rear Dead Axle Unit for Heavy Duty Truck -
Dump Truck (6×4)
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Rear-Front Axle Unit for Heavy Duty Truck -
Rear-Rear Axle Unit for Heavy Duty Truck
Axles for Medium Duty Truck
Length=2.0m Mass=280-300kg
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Rear Axle Unit for Medium Duty Truck
Axle Case Type
Axle Case for Heavy Duty Truck
Length=2.1m Mass=110-160kg
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Cargo Truck (8×4)
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Rear-Front Axle Case for Heavy Duty Truck -
Rear-Rear Axle Case for Heavy Duty Truck -
Cargo Truck (6×2)
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Rear Axle Case for Heavy Duty Truck -
Rear Dead Axle Case for Heavy Duty Truck -
Dump Truck (6×4)
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Rear-Front Axle Case for Heavy Duty Truck -
Rear-Rear Axle Case for Heavy Duty Truck
Axle Case for Medium Duty Truck
Length=1.8m Mass=60-120kg
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Front Axle Case for Medium Duty Truck (4WD) -
Rear Axle Case for Medium Duty Truck
Axle Case for Light Duty Truck
Length=1.4-1.9m Mass=30-70kg
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Front Axle Case for Medium Duty Truck (4WD) -
Rear Axle Case for Medium Duty Truck
Axle Case for Pickup Truck/SUV
Length=1.5m Mass=20-30kg
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Pickup Truck
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SUV
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Rear Axle Case for Pickup Truck -
Rear Axle Case for SUV
Axle Tube for Pickup Truck/SUV
Length=0.6-0.8m Mass=10-20kg
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SUV
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Rear Axle Tube for SUV
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Pickup Truck
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Rear Axle Case for Pickup Truck -
SUV
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Rear Axle Case for SUV -
SUV
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Rear Axle Tube for SUV