Rear Axle Assembly: Main Parts and Function

Following are the Main Parts of Rear Axle Assembly:

The rear axle in a car is a key component of the drivetrain, responsible for transmitting power from the engine and transmission to the rear wheels. It typically consists of an axle housing, differential, and axle shafts. The rear axle can be live (powered) or dead (unpowered), depending on the vehicle's drivetrain configuration.

⚙️Working:

In rear-wheel-drive cars, the rear axle serves as the main driving axle, providing torque to the wheels and enabling motion. It also plays a critical role in supporting the vehicle's weight and maintaining stability while driving. Rear axles are often designed with varying mechanisms, such as independent or solid axle setups, depending on the vehicle's purpose and design.

⚙️Parts of Rear Axle:

1. Filler Plug:

The filler plug in a rear axle is a removable cap or bolt that allows access to fill or check the level of the differential oil inside the axle housing.

2. Drain Plug:

A drain plug in a differential is a plug that allows the fluid in the differential to be drained out.

3. Differential:

A differential system is a mechanical device that allows the wheels of a vehicle to rotate at different speeds while the vehicle is turning.

4. Leaf Spring:

A leaf spring suspension system is a type of vehicle suspension that uses steel layers of varying thicknesses to compensate for uneven road surfaces and ensure the wheels stay in contact with the road.

5. Wheel: 

A car wheel is a circular metal or alloy component that connects to the hub of a car through an axle. 

6. Differential Casing:

A differential casing, also known as a diff case, is a housing that contains the gears that allow a vehicle's wheels to rotate at different speeds.

7. Axle Shaft:

An axle shaft is a solid rod that connects a pair of wheels and allows the transmission to transfer motion to the wheels.

8. Propeller Shaft:

The propeller shaft transfers the power drive from the out put shaft of the front body mounted gear box to the unsprung rear axle final drive, so providing the means of propelling the vehicle forward or in reverse