Moyeu de roue arrière FAW J6P: Déconstruction 9 Pièces critiques pour un transfert de puissance parfait

Il s'agit d'un guide technique complet sur le Moyeu de roue arrière FAW J6P (Model 3104011-A6E) Pour le FAW Jiefang CA3250P66K2L1T1E 6×4 tombereau. Cette déconstruction analyse 9 types de composants réparables, from the main hub casting and tapered roller bearings to the high-strength studs and seals.

Le Moyeu de roue arrière FAW J6P is a foundational component of the tandem drive axle system. Unlike a front hub, this is a part of the drive axle, designed to transfer the immense torque from the axle shaft to the dual-wheel assembly. Its primary functions are to support the massive vertical payload, provide a rigid mounting point for the dual wheels and brake drum, and house the bearings that allow this assembly to rotate under power. In a 6×4 tombereau, le Moyeu de roue arrière FAW J6P is subjected to extreme torque, shock loads, and contamination. This deconstruction will analyze the core components of the Moyeu de roue arrière FAW J6P, including the bearing sets, the sealing system, and the wheel mounting hardware. A properly serviced Moyeu de roue arrière FAW J6P is essential for drivetrain integrity, bearing life, and braking performance.

Cœur 1: Le “Moyeu & Palier” Logique (The Rotating Foundation)

This group represents the core rotating mass of the Moyeu de roue arrière FAW J6P. It includes the main hub casting and the critical bearings that support the load and allow rotation on the axle housing.

1. Composant: ‘Rear wheel hub’ (3104011-A6E) – Quantité 4
Ce (Comp 1) is the main body of the Moyeu de roue arrière FAW J6P. C'est un énorme, single-piece casting made of high-strength ductile iron. It is designed to house the two bearing races, provide a mounting flange for the ‘Rear brake drum’ (Comp 4), and hold the 10 ‘Stud bolts’ (Comp 2) for the dual-wheel assembly. Its structural integrity is paramount for handling the vehicle’s payload.

2. Composant: ‘Tapered roller bearing’ (3104030-A6E-C00) – Quantité 8 (4 ensembles)
Ce (Comp 5 & 8) is the set of tapered roller bearings. Le Moyeu de roue arrière FAW J6P uses two of these bearings per side (an inner and an outer bearing). The BOM lists this part number twice, indicating the inner and outer bearings may be the same size or are supplied as a set. Each bearing consists of an outer race pressed into the hub and an inner cone that slides onto the axle housing spindle.

Le Tapered Roller Logic est critique. These bearings are designed to handle both immense radial loads (the vertical weight of the truck and payload) et charges axiales (the side-forces from cornering) simultanément. Un bon fonctionnement Moyeu de roue arrière FAW J6P depends entirely on the health and proper pre-load of these bearings.

Cœur 2: Le “Wheel Mounting” Logique (The Dual-Wheel Stud System)

This group of components is responsible for securely fastening the dual road wheels to the Moyeu de roue arrière FAW J6P. The clamping force of this system is critical to safety and torque transfer.

1. Composant: « Goujon – rear wheel hub’ (3104051-32T) – Quantité 40
Ce (Comp 2) est un ensemble de 10 high-tensile steel studs (per hub) that are pressed into the back of the Moyeu de roue arrière FAW J6P bride. These studs are extra-long to pass through the brake drum, the inner wheel, the spacer, and the outer wheel. They are designed to be a tight, press-fit and are only replaced if the threads are damaged.

2. Composant: ‘Wheel nut assy’ (3103070-32T) – Quantité 40
Ce (Comp 3) is the main nut that secures the dual-wheel assembly. Le Logique de force de serrage is that as this nut is tightened, it provides the massive clamping force required to hold both wheels and the Tambour de frein FAW J6P (Comp 4) securely against the Moyeu de roue arrière FAW J6P. Any loss of torque on these nuts can lead to wheel wobble and catastrophic failure of the Moyeu de roue arrière FAW J6P studs.

Cœur 3: Le “Système d'étanchéité” Logique (Bearing Protection)

This group of components is dedicated to protecting the tapered roller bearings (Comp 5 & 8) from contamination. On a dump truck, this is one of the most important systems, comme le Moyeu de roue arrière FAW J6P is constantly exposed to water, boue, and abrasive dust.

1. Composant: ‘Rear hub outer oil seal assy (Style drawing)’ (3104055AA0E) – Quantité 4
Ce (Comp 7) is the primary oil seal. C'est un complexe, pre-assembled cassette seal that is pressed into the back of the Moyeu de roue arrière FAW J6P. It runs on a polished ‘Oil seal seat’ (Comp 6, 3104044AA0E) that is pressed onto the axle housing spindle. This seal is designed to keep the heavy gear oil *inside* the hub to lubricate the bearings.

2. Composant: 'Joint torique’ (3104066-A6E-C00) – Quantité 4
Ce (Comp 9) is a large O-ring. Le Logique d'étanchéité is that this O-ring likely seals the outer axle shaft flange (pas de photo) au Moyeu de roue arrière FAW J6P. This prevents water and dirt from entering the hub from the outside and prevents oil from leaking out onto the wheels. A failure of this O-ring or the main seal (Comp 7) will lead to a rapid loss of lubrication and complete failure of the Moyeu de roue arrière FAW J6P roulements.

Cœur 4: Le “Tambour de freinage” Logique (The Braking Interface)

This component is the friction partner to the Moyeu de roue arrière FAW J6P, responsable de l'arrêt du véhicule.

1. Composant: ‘Rear brake drum’ (3502571-A0E) – Quantité 4
Ce (Comp 4) is the heavy cast-iron drum that the rear brake shoes press against. It slides over the 10 wheel studs (Comp 2) and is mounted “inboard” de la Moyeu de roue arrière FAW J6P bride.

Le Inboard Drum Logic means the Moyeu de roue arrière FAW J6P must be completely removed from the axle spindle (by removing the axle shaft and spindle nuts) in order to service or replace the brake drum. While this is more labor-intensive, it creates a very strong and stable mounting. Le Tambour de frein FAW J6P‘s ability to absorb and dissipate heat is critical for the safety of a fully-loaded dump truck.

Moyeu de roue arrière FAW J6P: Répartition complète en 9 parties

Le tableau suivant fournit l'intégralité, ventilation détaillée de tous 9 types de composants dans le Moyeu de roue arrière FAW J6P assemblage pour le FAW Jiefang CA3250P66K2L1T1E 6×4 tombereau. Cette liste est indispensable pour tout service du Moyeu de roue arrière FAW J6P.

Spécifications de base

Les spécifications pour le Moyeu de roue arrière FAW J6P are defined by its heavy-duty components and robust sealing system, designed for the tandem drive axles of the CA3250P66K2L1T1E dump truck. UN Moyeu de roue arrière FAW J6P must be serviced to exact torque specifications.