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How to choose imported bearing lubricating oil
2021-10-16Lubricant is an essential and necessary condition for bearing during operation and an important adjustment to reduce bearing wear and improve bearing life. The lubrication methods of imported bearings can be divided into grease lubrication and oil lubrication. The lubrication methods used are different for different imported bearings and different use methods, Below, Demi Rui bearing will share with you the impact of the selection of imported bearing lubricating oil on the bearing.
Lubrication has an important impact on the fatigue life, friction, wear, temperature rise and vibration of imported eccentric bearings. Without normal lubrication, eccentric bearings can not work. The analysis of the causes of vibration eccentric bearing damage shows that about 40% of the vibration bearing damage is related to poor lubrication.
The lubrication methods of vibration eccentric bearing are divided into grease lubrication and oil lubrication. In order to make the bearing function well, first of all, choose the lubrication method suitable for use conditions and purposes. If only lubrication is considered, the lubricity of oil lubrication is dominant. However, grease lubrication has the advantage of simplifying the structure around the bearing.
1. Eccentric bearing grease lubrication
Grease is a lubricant composed of base oil, thickener and additives. When selecting, the lubricating grease that is very suitable for the service conditions of eccentric bearing shall be selected. Due to different varieties, there will be great differences in performance, so attention must be paid to the selection.
2. Eccentric bearing oil lubrication
Under the conditions of high speed and high temperature, oil lubrication can be used when grease lubrication is no longer suitable. Through the circulation of lubricating oil, a large amount of heat can be taken away, and it is also effective in reducing the vibration and noise of eccentric bearing.
3. Grease viscosity of eccentric bearing
The viscosity of imported bearing is an important characteristic of lubricating oil. The viscosity directly affects the fluidity of lubricating oil and the thickness of oil film formed on the friction surface. The viscosity of lubricating oil under the working temperature of vibration eccentric bearing is generally 12-15cst. The higher the speed, the lower the viscosity should be selected, and the heavier the load, the higher the viscosity should be selected· Common lubricating oils include machine oil, high-speed machine oil, turbine oil, compressor oil, transformer oil, cylinder oil, etc.
During the storage and operation of imported bearings, the reasonable use of lubricating oil can reduce the loss of bearings and enhance the service life of bearings.