Корпус заднего моста FAW и полуось в сборе: Критический анализ 8 Основные компоненты

Welcome to this critical technical analysis of the Корпус заднего моста FAW и полуось в сборе. This is the complete load-bearing and power-delivery system for the rear drive axle of the FAW Jiefang CA4251P66K24T1A3E5 6×4 дизельный полуприцеп тягач. This assembly is the literal foundation of the “6×4” drive system.

The Корпус заднего моста FAW и полуось в сборе is a multi-part system consisting of two main functional groups: the ‘Rear axle housing assembly’ (2401010BA6T), which is the structural “скелет” that holds the differential and bearings, and the ‘Half-Shaft’ собрания (2403081-A6T & 2403082-A6T) that transmit torque to the wheels.

This in-depth guide is an essential resource for professional driveline technicians, менеджеры автопарка, и специалисты по запчастям. Мы разберем всю Корпус заднего моста FAW и полуось в сборе в свой 8 исправные компоненты, including the main housing, the individual axle shafts, the magnetic drain plug, and the critical breather valve.

Основной компонент: The Rear Axle Housing (2401010BA6T)

Сердце Корпус заднего моста FAW и полуось в сборе is the ‘Rear axle housing assembly’ (2401010BA6T). This is the main structural component, often called the “банджо” или “carrier.” It is a massive, high-strength casting, typically made of ductile cast iron, designed to handle the entire weight of the tractor’s rear and its cargo, as well as the immense torque loads from the driveline.

This housing performs three critical functions. Первый, это “скелет” that provides the mounting points for the entire suspension system (leaf springs, air bags). Второй, it is the rigid “случай” that holds the differential (the ring and pinion gearset) in perfect, precision-machined alignment. Третий, it acts as the “axle tubes,” extending outwards to hold the wheel hub bearings.

The housing is also a sealed oil reservoir, holding several gallons of heavy-duty gear oil to lubricate the differential. A crack or bend in this Корпус заднего моста FAW и полуось в сборе (НАПРИМЕР., from an impact or overloading) is a catastrophic, vehicle-ending failure. Its structural integrity is paramount.

The “Half-Shafts”: Левый (2403081-A6T) & Верно (2403082-A6T)

The “Half-Shaft” components of the Корпус заднего моста FAW и полуось в сборе are the ‘Rear axle left half-shaft’ (2403081-A6T) and the ‘Rear axle right half-shaft’ (2403082-A6T). Это “ось” themselves. They are solid, forged shafts made from an incredibly tough and ductile steel alloy (like 4340 chromoly), designed to twist slightly under extreme torque without breaking.

These are **full-floating** axles. This is a critical design feature for a heavy-duty truck. In this system, the axle shafts “float” inside the housing. Their *only* job is to transmit torque. They do *not* support the weight of the vehicle. The vehicle’s weight is supported by the ‘Rear axle housing assembly’ сам, via the large wheel hub bearings.

Этот “full-float” design means that if a Корпус заднего моста FAW и полуось в сборе‘s shaft were to break (a rare but possible event under extreme load), the wheel *will not fall off* the truck. The driver can safely pull over. The shafts are splined on their inner end (to engage with the differential’s “солнце” шестерни) and flanged on their outer end, where they are secured to the wheel hub by the 20 «Болты с шестигранной головкой’ (Q1851650TF2K).

The reason for a separate “Левый” и “Верно” half-shaft is simply their length. Due to the central mounting of the differential “pumpkin,” one axle shaft is always slightly longer than the other to reach the corresponding wheel hub. A worn or twisted spline on the Корпус заднего моста FAW и полуось в сборе is a common failure point that will result in a “clunk” on acceleration and an eventual loss of drive.

Lubrication and Service Logic

The Корпус заднего моста FAW и полуось в сборе contains several critical service components for its gear oil.

**1. ‘Oil filler plug’ (2401051-A0R):** Это “fill” и “level check” port. It is located on the side of the differential housing. A technician removes this plug and fills the axle with gear oil until the fluid is level with the bottom of this hole.

**2. ‘Inner hex tapered magnetic screw plug’ (Т62104М):** Это “drain” затыкать, located at the lowest point of the Корпус заднего моста FAW и полуось в сборе. Его “magnetic” property is its most important “логика.” The magnet actively traps microscopic metal particles that are a normal byproduct of gear wear. During an oil change, inspecting this plug gives a technician a clear “health report” of the differential. A large amount of “пух” is normal, but large “chips” indicate a failing bearing or chipped gear tooth inside the Корпус заднего моста FAW и полуось в сборе.

**3. ‘Gasket ring’ (CQ72324T5):** This is the single-use “crush washer” for the magnetic drain plug. It must be replaced at every oil change to guarantee a leak-free seal.

The “Breather” Логика (Т905)

The ‘Breather plug’ (Т905) is one of the most critical, yet simple, components of the Корпус заднего моста FAW и полуось в сборе. As the differential and its oil heat up during driving, the air inside the ‘Rear axle housing assembly’ expands, building pressure.

This breather plug is a one-way (or filtered) “vent.” It allows this hot, pressurized air to escape. When the axle cools, the air inside contracts, creating a vacuum. The breather allows clean air to be drawn *in*.

A failure of this “логика” is catastrophic. If the ‘Breather plug’ (Т905) becomes clogged with mud or dirt, the expanding pressure has nowhere to go. It will force its way out past the weakest points: the axle’s pinion seal and the wheel hub seals, causing a massive oil leak. Наоборот, if the axle cools and the clogged breather creates a vacuum, it can *suck in* water and mud during a water crossing, contaminating the oil and destroying the bearings. This tiny plug is essential to the long-term health of the Корпус заднего моста FAW и полуось в сборе.

Система крепления: (Q1851650TF2K)

The Корпус заднего моста FAW и полуось в сборе is held together by the 20 'Болт с шестигранной головкой, грубый стержень (Стандартный тип)’ (Q1851650TF2K) крепежные детали. These are the bolts that secure the flanges of the ‘Left’ и «Правильно’ half-shafts to the wheel hubs (10 bolts per side).

These are the final link in the power-delivery chain. They are responsible for transmitting 100% of the engine’s multiplied torque from the axle shaft to the wheel. Они есть “фланец” болты, which act as an integrated washer to provide a high-clamping force. They are also high-tensile (НАПРИМЕР., Сорт 10.9) and are often “отношение крутящего момента к текучести” (single-use) крепежные детали. A loose or broken axle shaft bolt will cause a “щелчок” sound as the wheel turns and can lead to a total loss of power on that side of the vehicle. This hardware is a key serviceable part of the Корпус заднего моста FAW и полуось в сборе.

FAW Rear Axle Housing And Half-Shaft Assembly Parts List

В следующей таблице представлена ​​полная, подробная разбивка всех 8 components identified in the ‘Rear Axle Housing and Half-Shaft Logic Assembly’ схема трактора FAW CA4251P66K24T1A3E5. Этот Корпус заднего моста FAW и полуось в сборе is the foundation of the 6×4 трансмиссия.

Технические характеристики и контекст сборки

Технические характеристики Корпус заднего моста FAW и полуось в сборе are defined by its function as a heavy-duty, full-floating drive axle. The Корпус заднего моста FAW и полуось в сборе is the final link in the powertrain.