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Purpose and method of bearing lubrication
The lubrication method of the bearing is divided into grease lubrication and oil lubrication. In order to make the bearing function well, first of all, it is necessary to choose a lubrication method that is suitable for the use conditions and purpose.
Feb 07,2024
Purpose of bearing lubrication:
The purpose of rolling bearing lubrication is to reduce friction and wear inside the bearing, prevent burning and sticking, and its lubrication effect is as follows.
⑴. Reduce friction and wear.
In the contact parts of the bearing rings, rolling elements and retainers, prevent metal contact, reduce friction and wear.
⑵. Extend fatigue life.
The rolling fatigue life of the bearing is extended if the rolling contact surface is well lubricated during rotation. On the contrary, if the oil viscosity is low and the lubricating oil film thickness is not good, it will be shortened.
⑶. Discharge friction heat and cool
The circulating oil feeding method can use oil to discharge the heat generated by friction or the heat transmitted from the outside, and cool it. Prevent the bearing from overheating and prevent the lubricating oil from aging.
⑷. Others
It also has the effect of preventing foreign matter from invading the inside of the bearing, or preventing rust and corrosion.
Lubrication method:
The lubrication method of the bearing is divided into grease lubrication and oil lubrication. In order to make the bearing function well, first of all, it is necessary to choose a lubrication method that is suitable for the use conditions and purpose. 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. Compare the pros and cons of grease lubrication and oil lubrication.
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