Tungsten Disulfide for Rolling Bearing Lubrication

Tungsten disulfide is suitable for the working environment of rolling bearing with high temperature and heavy load. It has good lubricating performance as well as excellent high temperature and extreme pressure resistance. Therefore, it is an ideal material for rolling bearing lubrication.

Rolling bearing is a precise mechanical component that changes the sliding friction between the running shaft and the shaft seat into rolling friction, reducing the friction loss. It is generally composed of inner ring, outer ring, rolling element and cage. Inner ring is installed in the journal and rotates with the shaft. And outer ring, which generally does not rotate, is installed in the bearing seat to support. As the core component of rolling bearing, rolling element is mounted between inner ring and outer ring. The performance and service life of rolling bearing is affected by its shape, size and quantity. As for cage, it is an important part to separate the rolling element and plays a role of lubrication.

Rolling bearing is prone to failure during continuous operation under high temperature and heavy load. Problems of excessive temperature, large noise and severe wear occur frequently. And they are usually attributed to insufficient or poor lubrication of rolling bearing. Therefore, lubricant is considered as the fifth largest component of rolling bearing, which has a very important impact on the operation and service life of rolling bearing.

Tungsten disulfide is the preferred material for rolling bearing lubrication. It has good lubricating performance with the friction coefficient of 0.03. Thus, it can provide good lubrication for rolling bearing. In addition, this kind of material has excellent high temperature resistance and extreme pressure resistance. It is suitable for the condition of high temperature, high pressure and heavy load, which is the working environment of rolling bearing. When applied on rolling bearing’s surface, tungsten disulfide can reduce the wear effectively and improve the service life rolling bearing to the greatest extent. It is a lubricating material with high quality.

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