Rolling bearings are common type of mechanical hardware products, which require continuous lubrication treatment during use to ensure their normal operation. So, what are the main purposes of lubrication treatment for rolling bearings? What are the methods of lubrication treatment? Today, the editor has compiled the following for you, hoping to help more people have a better understanding and appreciation of this type of bearing!

The main purposes of lubrication for rolling bearings are:

1. Reduce friction and wear: prevent metal contact and reduce friction and wear in the contact parts between the ring, rolling element, and retainer that make up the bearing.

2. Extending fatigue life: The rolling fatigue life of bearings is extended when 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.

3. Discharging frictional heat and cooling: The circulating oil method can use oil to remove heat generated by friction or heat transmitted from the outside for cooling. Prevent bearing overheating and prevent lubricating oil from aging on its own.

4. Other: It also has the effect of preventing foreign objects from entering the interior of the bearing, or preventing rust and corrosion.

The main methods for lubrication of rolling bearings are:

At present, there are two different lubrication methods for bearings: grease lubrication and oil lubrication; In order for bearings to function well, it is first necessary to choose a lubrication method that is suitable for the conditions and purpose of use. If only lubrication is considered, the lubricity of oil lubrication has an advantage. However, grease lubrication has the advantage of simplifying the surrounding structure of bearings, comparing the advantages and disadvantages of grease lubrication and oil lubrication.