The impact of insufficient gearbox lubricating oil on bearing performance

As the core component of the automobile transmission system, the lubrication state of its internal components is directly related to the performance and life of the vehicle. Among them, lubricating oil plays a vital role in the gearbox bearings. It can not only reduce friction and wear, but also cool components and clean impurities. However, when the amount of lubricating oil in the gearbox bearings is insufficient, the consequences will not be ignored.

First of all, the lubrication surface in the gearbox bearings does not get the amount of oil it deserves, and the lubrication effect will be greatly reduced. Under normal circumstances, lubricating oil can form an oil film between key components such as bearings and gears, which plays a role of isolation and lubrication. But when the amount of oil is insufficient, this oil film will become thin or even disappear, resulting in more direct contact between components and an increase in the friction coefficient.

In the gearbox bearings, the bearing is a key transmission component, and the stability of its working state directly determines the overall performance of the gearbox bearings. During operation, the bearing needs to withstand the transmission force and friction force from components such as gears. If the lubrication is poor, these forces will not be effectively alleviated, resulting in increased bearing temperature and increased wear.

The impact of poor lubrication on bearings is multifaceted. First, due to the increase in the friction coefficient, the bearing will generate more heat during operation. If this heat cannot be dissipated in time, the temperature of the bearing will continue to rise, which will cause the aging, deformation and even melting of the material. Secondly, high temperature will accelerate the oxidation and decomposition of the lubricating oil inside the bearing, resulting in the degradation of the lubricating oil performance, further aggravating the poor lubrication condition.

In addition, poor lubrication will also increase the wear of the bearing. Under the action of friction, the rolling elements, raceways and other components of the bearing will gradually wear, resulting in reduced bearing accuracy and increased clearance. This will not only affect the transmission accuracy and stability of the gearbox bearings, but also shorten the service life of the bearing.

More seriously, poor lubrication may also lead to fatigue failure of the bearing. Under the action of alternating loads, fatigue cracks will appear on the rolling elements and raceway surfaces of the bearing, which will cause the bearing to break or stick. Once this happens, it will cause serious damage to the gearbox bearings and even make the vehicle unable to drive.

We must attach great importance to the maintenance and replacement of the gearbox bearings lubricating oil. In daily use, check the amount of lubricating oil in the gearbox bearings regularly to ensure that it is within the normal range. At the same time, according to the use of the vehicle and the requirements of the maintenance manual, replace the lubricating oil and filter element in time to ensure the cleanliness and lubrication effect inside the gearbox bearings. Only in this way can the normal operation of the gearbox bearings and bearings be ensured and the service life of the vehicle be extended.