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How to choose grease for NTN bearings: Lubrication has […]
How to choose grease for NTN bearings:
Lubrication has an extremely important influence on the operation and life of the bearing. Here is a brief introduction to the general principles of choosing grease. Grease is made of base oil, thickener and additives. The performance of different types and different grades of the same type and different grades of grease vary greatly, and the allowable rotation limit is different. Please pay attention when choosing.
The performance of grease is mainly determined by the base oil. Generally low viscosity base oil is suitable for low temperature and high speed; high viscosity base oil is suitable for high temperature and high load. The thickener is also related to the lubricating performance, and the water resistance of the thickener determines the water resistance of the grease.
In principle, greases of different brands cannot be mixed, and even greases with the same thickener will have a bad influence on each other due to different additives.
When lubricating bearings, the more grease is applied, the better? When lubricating bearings, the more grease applied, the better. This is a common misconception. Excessive grease in the bearing and the bearing chamber will cause excessive agitation of the grease, resulting in extremely high temperatures.