Maintenance-free trailer axles also need to be maintained

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 cycles than ordinary axles.

Advantages of maintenance-free axles

1. The wheel end oil change cycle is extended.

This is also the most obvious advantage of maintenance-free trailer axles. Under normal circumstances, the ordinary axle maintenance cycle is mostly concentrated in 20,000-50,000 kilometers, maintenance-free axle can be extended to 5 years / 800,000 kilometers, about 100,000 kilometers between the owner only need to carry out a simple visual inspection, in contrast, can help the owner to save a lot of time and energy.

2, bearing performance is more stable.

The bearings of maintenance-free axles are immersed in lubricating oil, which can be lubricated more fully when rotating. The oil circulates inside the hub, and the working state of the bearings is more stable.

3. The service life of wheel end is extended.

Because the bearing is soaked in lubricating oil, when it is working to produce debris or impurities, the lubricating oil will be cleaned off during the cycle and deposited into the hub cavity, reducing the loss caused by the bearing and extending the service life of the wheel end.

4, comprehensive car maintenance cost reduction.

According to relevant survey data, in the service cycle of the wheel end, maintenance-free trailer axle can help the owner save a lot of costs, if the wheel end maintenance is charged according to 150 yuan/time, the 150,000 kilometers can save nearly 10,000 yuan.

However, the owners need to pay attention to is that "maintenance-free" ≠ "inspection free", although the maintenance cycle of the trailer axle is relatively long, the owners can not ignore the daily inspection and maintenance, even if the maintenance mileage is not reached, the trailer axle needs to be routinely inspected, so as to make the best use of it.

Under normal circumstances, the wheel end of the maintenance-free trailer axle will be designed with a transparent hub cap, which is also to facilitate the owner to observe the internal oil state, in order to replenish or replace the oil in time.

Maintenance-free trailer axle use precautions

1, to check the trailer axle fasteners before departure, to see if there is loosening phenomenon;

2, check whether the hub cap is damaged, whether there is oil leakage;

3, regularly observe whether the gear oil in the hub is above the normal level and whether it is contaminated, under normal circumstances, the lubricating oil is dark, if there is white or milky, it indicates that the lubricating oil is contaminated;

4, every 12 months or 100,000 kilometers, the wheel should be set up to check the rotation has no difference, the bearing is shaking;

5, every 12 months or 100,000 kilometers, you need to open the oil injection hole, with a magnet probe into the lubricant to check whether there are impurities such as iron filings.

In addition, the maintenance mileage for reference is generally determined according to the average working condition, if the actual application conditions of the vehicle are relatively harsh, its maintenance mileage also needs to be shortened accordingly:

1, the vehicle frequent overload, hub bearings, etc., need to bear the load is larger, and the heat generated compared with the load transport is higher, the maintenance cycle of this type of vehicle must be shortened;

2, the vehicle often drives in harsh working conditions, dust, rain, snow melting agent, sand and so on are often covered with the vehicle chassis, it may enter the lubricating oil through the vent, leading to the deterioration of the lubricating oil, in this case also need to be replaced before the official given maintenance cycle;

3, the use of vehicles in the case of obvious climate change, such as east-west, north-south long-span long-distance transport, hot and cold climate change, the lubrication system is also prone to failure, the owner needs to pay extra attention.

In fact, whether it is maintenance-free trailer axle or ordinary trailer axle, choose the quality of the brand is very important, Darong trailer axle specially tailored for the trailer, focus on trailer axle research and development and production for 20 years, quality and service can stand the test, Darong maintenance-free trailer axle without cumbersome maintenance procedures, with higher stiffness and accuracy, long service life, higher vehicle attendance, Save money and worry. Special size can be customized, the market reputation is good.