The rear axle refers to the rear drive shaft component of the vehicle power transmission. It consists of two half-bridges that allow differential motion of the half-axles. At the same time, it is also a device used to support the wheels and connect the rear wheels. If it is a vehicle driven by the front axle, then the rear axle is just a follow-up axle, which only plays a bearing role. If the front axle is not a drive axle, then the rear axle is a drive axle. At this time, in addition to the bearing function, it also plays the role of driving and decelerating, as well as differential speed. If it is four-wheel drive, it is generally equipped with a splitter in front of the rear axle. actuator. The rear axle is divided into integral axle and half axle. The whole axle is equipped with non-independent suspension, such as leaf spring suspension, and the half-axle is equipped with independent suspension, such as MacPherson suspension.

The rear axle of the car refers to the bridge behind the car:

    If the axle is not a drive axle, then the rear axle is a drive axle. At this time, in addition to the bearing function, it also plays the role of driving and deceleration, as well as differential speed.

The front axle and the rear axle refer to the part of the front and rear axles. The front axle includes shock absorber springs, steering gears, balance shafts, etc., and the rear axle also includes drive shafts, transmission gears, etc. The rear part of the multi-axle truck is also divided into a driving rear axle and a non-driving rear axle. The non-driving rear axle is the part that has no drive shaft connection and does not belong to the driving wheel. Generally, it is only available for heavy trucks and tractor heads with more than 3 axles.

Rear axle classification:

According to the suspension of the bridge, it is divided into integral type and disconnected type.

Integral

The whole axle is equipped with non-independent suspension, such as leaf spring suspension.

disconnect

Disconnected with independent suspension, such as MacPherson suspension.

Rear axle center overview

As for the big bulge in the center of the rear axle, it is only available when the rear axle is a drive axle, because a reduction gear and a differential mechanism must be placed in it, so there must be a big bulge, and the rear axle is a follow-up axle. .

Axle classification

According to the different functions of the axles, the axles can be divided into drive axles, steering axles, support axles, and steering drive axles.