How many kinds of trailer axles? How much is a trailer axle?

Common trailer axles can be divided into four types: drive axle, steering axle, steering drive axle and support axle.

1. Drive axle

The drive axle is generally composed of a reducer, a differential, a half-shaft and a axle housing, etc., generally installed at the end of the transmission system, which can change the speed and torque from the transmission, and transmit it to the drive wheel and drive the vehicle.

The common drive axle can be divided into three categories: central single-stage deceleration drive axle, central two-stage deceleration drive axle, and central single-stage wheel side deceleration drive axle. Among them, the central single-stage deceleration drive axle is the simplest one in the drive axle structure, which is widely used in heavy duty trucks; The central two-stage reduction drive axle is a type derived when the speed ratio of the single-stage axle exceeds a certain value or the total traction mass is large. Wheel deceleration drive axle is more widely used in oil fields, construction sites, mines and other off-road vehicles and military vehicles.

2. Steering bridge

As the name suggests, the steering bridge refers to the trailer axle that undertakes the steering task, usually located in the front of the vehicle, in addition to the vertical load of the vehicle, but also the longitudinal force and lateral force and the resulting torque. 

The working principle of the steering bridge is mainly to use the steering knuckle in the trailer axle to deflect the wheels at both ends at a certain Angle to achieve the steering of the vehicle.

3. Steering drive axle

The so-called steering drive axle refers to the trailer axle that undertakes both steering tasks and power transmission tasks, such as front-wheel drive and all-wheel drive vehicles, and the front axle is a typical steering drive axle. Structurally, the steering drive axle has the main reducer, differential and half shaft of the general drive axle, and the steering knuckle and kingpin of the steering axle are also set up.

4. Support the bridge

The support bridge is also called the driven bridge, generally installed in the rear wheel of the vehicle, such as the common trailer axle is a driven bridge, do not need to transmit vehicle power, do not need to bear the steering function, the main task is to bear the weight of the body, and then can ease road bumps, ensure vehicle braking, maintain vehicle driving and so on.

The trailer axle on the market, how much is the general price of one? This problem needs to be determined by the type, model, brand and other factors of the trailer axle:

For example, 13t drum trailer axle, the price is mostly concentrated between 3000-4500 yuan, individual high prices can float to about 6000-8000 yuan, a few cheap can also be as low as 2000-2500 yuan;

If it is a disc trailer axle, the price is higher than the drum brake bridge, the average market price is about 6000-7000, the high can reach 9000 yuan or even tens of thousands, and the low can sell to 3000 yuan;

If it is a maintenance-free trailer axle, it needs to increase the price of the ordinary trailer axle by about 1000-1700 yuan.

Of course, the final price should also consider the specific configuration of the trailer axle, the number of car owners to purchase, the details of the market in the region, etc., which will more or less have a certain impact on the transaction price.