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The trailer rear axle is a typical driven bridge, also known as the support bridge, does not have driving and steering functions, the structure is simpler than the steering bridge or the drive axle, and is connected to the frame through the suspension system, which plays the role of load-bearing, braking, shock absorption, and maintaining the driving.The trailer rear axle can be divided into a number of types according to different classification methods, such as drum type and disc type, light weight type and heavy load type, ordinary type and maintenance-free type, American type and German ty

History of disc brake and drum brakeSince the German Karbenz invented the use of single-stroke internal combustion engine cars, the car speed finally barely reached 19 kilometers per hour, and in the future time to break through, at the same time the role of the braking system began to gradually reveal.At the beginning, the British invented the brake mode of hair stained asphalt with the brake drum, but with the increase of speed, this original brake method has a general effect, and it is easy to fail.

According to different division methods, automobile axles can be divided into many types, such as integral axles and disconnected axles according to structure, and steering axles, drive axles, steering drive axles and support axles according to functions. Among them, the drive axle can be subdivided into single-stage reduction axle (half axle axle) and double-stage reduction axle (wheel side axle, wheel reduction axle).

The axle is one of the key load-bearing components of the vehicle. The upper part is connected to the vehicle body through the suspension, and the two ends are used to install the wheels, which can not only support the weight of the vehicle body, but also maintain the normal driving of the vehicle on the road.The axle can be integral, which looks like a big barbell, or it can be disconnected, like two umbrellas inserted on both sides of the vehicle body.

What is the fatigue test for? Why do trailer axles need fatigue tests? Today, let's walk into the production workshop of DARO Group to take a close look at the work of the fatigue test bench.When choosing an axle, many owners want to understand the basic situation of the product from all aspects, such as strength, toughness, load-bearing force, service life and so on. However, these data are often just a number or adjectival appearance, many owners feel more boring, after reading, listening to no impression.

The axle is one of the key components of the vehicle, which can perform the functions of bearing, braking, driving, steering and maintaining driving. According to the different driving methods, the axles can be divided into steering axles, driving axles, steering driving axles and purely driven supporting axles.The axle can be integral or disconnected, but their appearance and structure are not exactly the same.

In recent years, driven by relevant policies, more and more semi-trailers have begun to install air suspensions. Of course, this is also closely related to the performance of air suspensions such as light weight, stable shock resistance, good comfort, and free lift.The air suspension was born in the middle of the nineteenth century, and it went through the development process of pneumatic springs, airbag composite suspensions, semi-active air suspensions, and central inflatable suspensions.

Maintenance-free trailer axles appear more frequently on some high-end freight models, and the purpose of its application is to extend the maintenance cycle of the wheel end, reduce the frequency of maintenance, improve the efficiency of vehicle operation, and reduce the downtime caused by maintenance.The so-called maintenance-free axle is to replace grease lubrication with oil lubrication, fill the gear oil in the hub unit, the hub and the oil seal form a storage space for the gear oil, and soak the bearing in the gear oil to ensure its full lubrication capacity to achieve longer maintenance

The axle is one of the key parts of the semi-trailer, which is responsible for the load bearing, braking and maintenance of the vehicle. Many owners in the purchase of axles will face a problem: why look similar trailer axles, the price is so much different? Today, let's have a good talk about this topic.First, the choice of raw materials.In fact, no matter what brand of axle, its raw material is basically steel.

Semi-trailer is a common transport model used in China, which does not have a driving force and needs to be driven by tractor. Trailer axles installed on semi-trailers are generally support Bridges, do not have steering or drive functions, and are designed for load bearing.When it comes to trailer axles, we can easily think of 13t, 16t, 20t axles or 10t light axles, of which 13t axles are the most common.