Nsk bearing four major benefits of using grease

Nsk bearing grease can completely avoid using hand to add oil, but also effectively reduce the temperature of the bearing, extending the service life of nsk bearings.

First of all, we analyze the principle of the use of grease. Liquid oil is a very thick solution. Grease It is made of reticulated soap fibers. Its structure determines that it can absorb a large amount of lubricant and can make the bearings work normally during operation. However, many people worry that the grease will be discharged because of the squeeze, because just like a sponge, it absorbs a lot of oil, and if it is squeezed, its moisture will be lost. In fact, we do not have to worry about this, because when a newly lubricated imported bearing runs, the grease moves in the internal space of the bearing. Its main working principle is “temperature”, so the grease in the nsk bearing is rarely directly squeezed. Pressure oil discharge.

Four benefits of grease

The working principle of grease mentioned above is "temperature", then the main reason for oil draining to the sliding surface is caused by the temperature rise of grease around the nsk bearing. When the bearing starts to work normally, the grease will reach the sliding friction surface, and the lubrication effect will start to work as the temperature rises. Grease has many advantages. Here is a brief summary of its advantages.

(1) There are some individual bearing points in the bearing, and it is necessary to frequently use the hand to refuel. If grease is used, it does not need to be refueled by hand. This saves time and avoids damage caused by lack of oil.

(2) Experience has shown that the use of lithium grease lubrication within a certain speed range (n <20000r/min or dn <20000mm.r/min) has a reduced temperature rise and longer bearing life than with the drip method.

(3) The grease can be sealed with a simple design of a mechanism with a low degree of sealing, because the oil itself has a sealing effect.

(4) The theoretical basis of nsk bearing lubrication shows that the use of grease is more effective because the lubrication mechanism of the bearing is elastic fluid hydrodynamic lubrication.

Grease has a series of features such as stability, corrosion resistance, water resistance, extreme pressure, abrasion resistance, strong viscosity-temperature characteristics, and mechanical stability. So the use of grease is a good choice for maintaining nsk bearings.