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Purpose of bearing lubrication

Purpose of bearing lubrication:

The purpose of lubrication of rolling bearings is to reduce internal friction and friction loss of bearings and prevent burning and sticking. The lubrication effect is as follows.

(1) Reduce friction and friction damage.

In the bearing ring, rolling body and retainer contact parts, prevent metal contact, reduce friction, wear.

⑵. Prolong the fatigue life.

The rolling fatigue life of bearings is prolonged when the rolling contact surface is well lubricated in rotation. On the contrary, if the oil viscosity is low and the lubricating oil film thickness is bad, it will be shortened.

⑶. Discharge friction heat and cooling

Circulating oil method can use oil to discharge the heat produced by friction, or from the external heat, cooling. Prevent bearing overheating and lubricating oil from aging.

(4). Other

It can also prevent foreign matter from invading into the bearing, or prevent rust and corrosion.

Lubrication method:

The lubrication method of bearings is divided into grease lubrication and oil lubrication. In order to make the bearing function well, first of all, it is necessary to choose the lubrication method suitable for the use conditions and purposes. If only lubrication is considered, the lubricity of oil lubrication prevails. However, grease lubrication has the advantage of simplifying the structure around bearings. The advantages and disadvantages of grease lubrication and oil lubrication are compared.


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