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FAW Rear Axle Assembly-Axle Housing Assy
FAW Rear Axle Assembly-Axle Housing Assy
2025-08-01
FAW Rear Axle Assembly-Differential House Assy
FAW Rear Axle Assembly-Differential House Assy
2025-08-01

FAW Rear Axle Assembly-Main Reduction

FAW Rear Axle Assembly-Main Reduction
FAW Rear Axle Assembly-Main Reduction
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What is the FAW Rear Axle Assembly-Main Reduction

  • The FAW Rear Axle Assembly-Main Reduction is the precision-engineered heart within the axle housing, responsible for the crucial final gear reduction and torque multiplication that powers FAW trucks and heavy-duty commercial vehicles. This meticulously assembled core transforms high-speed, low-torque input from the drive shaft into the high-torque, low-speed rotation required to turn the wheels, handling immense loads with efficiency and reliability.
  • Housing & Foundation
  • Rear Axle Reducer Housing Assy: This robust, precision-machined housing provides the rigid foundation and sealed environment for all main reduction gears and bearings. It ensures precise component alignment and houses the lubricant critical for longevity.
  • Dowel, Pin: Precision alignment dowels ensure the Rear Axle Reducer Housing Assy mates perfectly with the main axle housing or carrier, guaranteeing critical gear positioning accuracy.
  • Input Shaft & Bearing System
  • Flange: The input flange connects directly to the drive shaft, transmitting rotational force into the main reduction gears.
  • Flange Nut: A high-strength nut securing the drive shaft flange to the pinion shaft.
  • Oil Seal Assy: Vital seals preventing gear oil leakage along the pinion shaft where it exits the housing.
  • Front Outer Bear Assy & Front Inner Bear Assy: Paired, high-capacity tapered roller bearings supporting the pinion shaft. They absorb both radial and thrust loads generated during power transmission.
  • Bearing Seat: The precisely machined surface within the housing where the pinion bearings are seated.
  • Spacer Ring & Spacer Pipe (x2): Precision shims (Spacer Ring) and potentially longer sleeves (Spacer Pipe) used between the bearings and/or against the bearing seats. These are critical for setting the exact pinion bearing preload, ensuring optimal bearing life and minimizing deflection under load.
  • The Core Gearset & Adjustment
  • Main-slave gear pair rear: This is the hypoid or spiral bevel gear set comprising the pinion gear (“slave”) driven by the input shaft and the large ring gear (“main”). Their precisely machined teeth mesh to achieve the significant speed reduction and torque multiplication.
  • Adjusting Ring: A threaded ring (or pair of rings) located behind the differential bearing cups. Rotating these rings adjusts the lateral position of the entire differential assembly (and thus the ring gear), setting the crucial backlash and tooth contact pattern between the ring and pinion gears.
  • Differential Bearing Adjusting Nut: Large nuts threaded onto the ends of the differential bearing adjusters (often part of the Adjusting Ring system). These nuts lock the adjusters in place once the correct ring gear position is achieved.
  • Differential Integration
  • LC300 Differential Assembly: The standard or optional limited-slip differential unit mounted within the Adjusting Rings. It receives torque from the ring gear and distributes it to the left and right axle shafts (Half Shafts – implied from prior assemblies), allowing wheels to rotate at different speeds during cornering.
  • Inter-Wheel Differential Lock Assy: An optional mechanism allowing the driver to mechanically lock the left and right axle shafts together via the Shifter Collar, forcing both wheels to turn at the same speed for maximum traction in challenging off-road or low-grip conditions.
  • Shifter Collar & Fixing Meshing Bush: Key components of the differential lock. The Shifter Collar slides to engage/disengage the lock. The Fixing Meshing Bush provides the splined interface or engagement surface that the collar locks onto.
  • Securing the Assembly
  • Bolt (x3): Represents the numerous high-tensile bolts used throughout the assembly, including those securing the bearing caps, housing covers, and the Rear Axle Reducer Housing Assy itself to the main axle carrier.
  • This precision-engineered FAW Rear Axle Assembly-Main Reduction, integrating components from the Flange Nut to the Fixing Meshing Bush, is fundamental to FAW’s drivetrain performance. Its robust construction, precise gear meshing achieved through critical Spacer Rings and Adjusting Rings, and integration with the LC300 Differential Assembly ensure efficient power delivery, exceptional durability, and reliable operation under the most demanding conditions.

Product Parameters of FAW Rear Axle Assembly-Main Reduction

Order Part NO. Part Name And Standards Oty
  2400010-D0097B Rear Axle Assembly 1
1 W2402071F01C Flange Nut 1
2 W2402060F01C Flange 1
3 W2402050F01C Oil Seal Assy 1
4 31313 Front Outer Bear Assy 1
5 W2402041F01C Bearing Seat 1
6 2402181D1H Spacer Ring On demand
7 W2402042F01C Spacer Pipe 1
7 W2402043F01C Spacer Pipe 1
8 32314B Front Inner Bear Assy 1
10 Q151B1440TF2 Bolt 2
11 W2402011F01C Bolt 18
12 W2402012F01C Bolt 2
13 Z2406010F01C-F Inter-Wheel Differential Lock  Assy 1
14 Z2402020F01C ear Axle Reducer Housing Assy 1
15 W2403078F01C Adjusting Ring 1
17 W2402025F01C Dowel, Pin 2
18 W2403071F01C Differential  Bearing Adjusting Nut 1
19 Z2403010F01D LC300  Differential Assembly 1
20 W2407016F01C Shifter Collar 1
21 W2407017F01C Fixing Meshing Bush 1
9、16 W2402030F01D Main-slave gear pair rear 1

 

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