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Hub bearing is one of the key components on the trailer, the main role is to carry weight, to provide accurate guidance for the rotation of the wheel end, not only to bear the axial load, but also bear the radial load.Hub bearings require regular maintenance, and the maintenance cycle of different brands also has certain differences. Under normal circumstances, the maintenance cycle of non-maintenance-free hub bearings is 1W km-5W km, and the maintenance cycle of maintenance-free bearings is longer, generally in 10W km-50W km.

    The Ministry of Transport, in conjunction with the Ministry of Finance, is implementing the national comprehensive freight hub replenishment and strengthening measures.

Axle is one of the key components on the trailer, is a set of core parts assembly, its performance is directly related to the load bearing, braking and driving of the vehicle. Therefore, the maintenance and maintenance of the axle is crucial to the safety of the operation of the vehicle.In general, trailer axle maintenance mainly includes lubrication grease filling/replacement, fastener detection, brake gap adjustment, brake drum/brake pad inspection, etc.

The wheel is an important part of the vehicle walking mechanism, which not only supports the weight of the whole vehicle, alleviates the impact of the road, but also generates driving force and braking force through the adhesion of the tire to the road surface to ensure the normal running of the vehicle.The composition structure of the wheel mainly includes the rim, the spoke, the hub and the tire. Among them, the rim, the spoke and the hub sound like the same, so that many owners do not know, today we will talk about the difference between them.1.

Bearing is an important part of the trailer axle. As a high-precision, high-strength and high-speed part, it plays an important role in force transmission, decompression and buffering on the trailer chassis.Specifically, there are three main functions of bearings:1, bearing weight, for the hub of the steering to provide accurate guidance, not only to bear axial load, but also bearing radial load.2, maintain the flexibility of vehicle steering, so that the vehicle steering, the shock absorber can follow the wheel rotation;3. Cushion the vibration from the road surface.

Axle is one of the core components on the rear axle of semi-trailer, and the strength of axle is directly related to the load-bearing capacity of trailer axle. For the axle, the performance of the axle head is crucial.The axle head is the key part of the axle connecting wheel hub, brake drum, bearing and other wheel end components, the performance of the subsequent hub assembly is stable, to a large extent depends on the strength, toughness and accuracy of the axle head.

The axle is one of the very important parts on the semi-trailer, which is directly related to the bearing, driving and braking of the vehicle, and the engine and transmission are called the three core assembly of the trailer, which plays a decisive role in the stability and safety of the vehicle.Maintenance-free trailer axle refers to the maintenance and maintenance cycle is relatively long axle, general oil lubrication instead of grease lubrication, in the hub unit with gear oil, so that the hub and oil seal form gear oil storage space, let the bearing soaked in gear oil, to ensure its full l

Steel rim, also known as wheel rim or wheel hub, refers to the tire inner profile supporting role, cylindrical, center mounted on the axle of the metal parts, its main role is to support the tire, buffer external impact, tire and road contact, to ensure the vehicle driving.The steel ring is a part of the wheel end system of the trailer axle, the inside of which is connected to the trailer axle by bolts and other parts, and the outside is used to install the tire. Under normal circumstances, when the owner buys the trailer axle, the steel ring is well matched.

The axle is one of the core components on the rear axle of a semi-trailer, and the strength of the axle is directly related to the load-bearing capacity of the trailer axle. For axles, the performance of the axle head is critical.The shaft head is the key part where the axle connects the wheel hub, brake drum, bearing and other wheel end components. Whether the performance of the subsequent wheel hub assembly is stable depends largely on the strength, toughness and precision of the shaft head. For example, if the end of the wheel is a high-rise building, then the axle head is the foundation.

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