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FAW Rear Axle Assembly-Wheel Reduction Gear Assy
FAW Rear Axle Assembly-Wheel Reduction Gear Assy
2025-08-01
FAW Rear Axle Assembly-Casting Brake
FAW Rear Axle Assembly-Casting Brake
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FAW Rear Axle Assembly-Wheel Hub Assy

FAW Rear Axle Assembly-Wheel Hub Assy
FAW Rear Axle Assembly-Wheel Hub Assy
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What is the FAW Rear Axle Assembly-Wheel Hub Assy

  • FAW Rear Axle Assembly: Wheel Hub Assy – Critical Components Explained
  • This assembly is the vital final link, transferring power from the axle shafts to the wheels while supporting the vehicle’s weight and enabling smooth rotation under heavy loads in FAW trucks and buses.
  • Rear Axle Assembly: The foundational structure encompassing the entire drivetrain system at the vehicle’s rear. It houses the differential, axle shafts, brakes, and crucially, the Wheel Hub Assy. FAW designs this assembly for maximum strength and durability to withstand demanding transportation environments.
  • Wheel Hub: The central, robust, precision-machined component of the Wheel Hub Assy. Mounted directly onto the axle spindle, it provides the mounting surface for the wheel rim (via Wheel Bolts) and houses the wheel bearings. Its integrity is paramount for safe wheel attachment and rotation.
  • Outer Bearing: A high-capacity, tapered roller bearing positioned towards the outer end of the axle spindle, within the Wheel Hub. It works in conjunction with the Inner Bearing to support the radial and thrust loads generated by the vehicle’s weight, cornering forces, and braking, ensuring smooth hub rotation.
  • Inner Bearing: The primary tapered roller bearing located closer to the differential within the Wheel Hub. This bearing typically carries the majority of the vehicle’s weight load transmitted through the axle. It works in tandem with the Outer Bearing to provide stable, low-friction support for the rotating hub.
  • Hub Oil Seal Assembly: A critical sealing unit pressed into the Wheel Hub’s inboard end. It features robust sealing lips that create a dynamic barrier against lubricant (grease) leaking out from the bearing cavity and, equally important, prevents external contaminants (water, dirt, mud) from entering the bearing area, significantly extending bearing life.
  • Bearing Shield (Dust Cover/Cap): A protective metal or plastic cap pressed or bolted onto the outermost face of the Wheel Hub. Its primary function is to shield the outer bearing and Wheel Bolt heads from direct exposure to road debris, splash, and dirt, providing an extra layer of contamination defense.
  • O-ring: A flexible elastomeric sealing ring. Within the Wheel Hub Assy context, an O-ring is often found sealing the interface between the Bearing Shield (Dust Cover) and the Wheel Hub itself, or sometimes within the hub cap assembly. It provides a static seal preventing moisture and dirt ingress at this point.
  • Wheel Bolt: High-tensile steel studs or bolts securely threaded into the Wheel Hub flange. These are the critical fasteners used to clamp the vehicle’s wheel rim (and often the brake drum/rotor) tightly onto the hub flange. Their strength and proper torque are essential for wheel retention and safety.
  • The FAW Wheel Hub Assy, integrating these precisely engineered components – the Wheel Hub, Outer Bearing, Inner Bearing, Hub Oil Seal Assembly, Bearing Shield, O-ring, and Wheel Bolts – forms a robust, sealed, and reliable unit. This system is meticulously designed within the Rear Axle Assembly to deliver exceptional load-bearing capacity, smooth wheel rotation, and long service life under the toughest operating conditions synonymous with FAW heavy-duty vehicles.

Product Parameters of FAW Rear Axle Assembly-Wheel Hub Assy

Order Part NO. Part Name And Standards Oty
2400010-D0097B Rear Axle Assembly 1
1 32222 Outer Bearing 1
2 W3104012F01C O-ring 2
3 W3104011F02D Wheel Hub 1
4 32222 Inner Bearing 1
5,6 3104049F0001A Hub Oil Seal Assembly 1
7 W3104051F38A Wheel Bolt 10
8 W3104015F01D Bearing Shield 1

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