What is the lubrication mode of bearing selected according to

Lubrication is a necessary condition to ensure the normal operation of bearings. Rolling bearings are an important mechanical component. Whether the performance of a mechanical equipment can be brought into full play depends on whether the lubrication of bearings is appropriate. It plays an important role in improving the bearing capacity and service life of bearings.
No matter what form of lubrication is adopted, lubrication can play the following roles in rolling bearings:
1) Reduce the friction between metals, slow down the wear.
2) The formation of oil film increases the contact area and reduces the contact stress.
3) Ensure that the rolling bearing can operate normally for a long time under high frequency contact stress, and prolong the fatigue life,
4) Eliminate friction heat, reduce the temperature of bearing working surface, prevent burn.
5) It can prevent dust, rust and corrosion. Therefore, correct lubrication is very important for the normal operation of rolling bearings.
The lubrication design of rolling bearing mainly includes: Determination of reasonable lubrication method, correct selection of lubricant, quantitative calculation of lubricant dosage and determination of oil change period. Rolling bearing lubrication can be generally divided into oil lubrication, grease lubrication and solid lubrication according to the types of lubricants used. Among them, oil lubrication has a wider temperature range than other lubrication methods, and is more suitable for bearings working under high speed and high load conditions; At the same time, oil lubrication also has the advantages of convenient equipment maintenance and lubricant replacement, and the friction pairs such as gears in the system can be lubricated at the same time. So far, oil lubrication is the most common for bearings. Grease lubrication has the advantages of simple sealing device, low maintenance cost and low cost of grease. It is widely used in bearings with low speed, medium speed and medium temperature operation.
Especially in recent years, with the advent of anti-wear additives, the lubricating performance of grease has been improved and grease lubrication has been widely used. If the oil lubrication and grease lubrication can not meet the lubrication conditions required by the bearing, or can not meet the specific working conditions, solid lubricants can be used, or try to improve the lubrication performance of the bearing itself.