Are there requirements for the installation surface and installation location? If iron filings, burrs, dust and other foreign matter enter the bearing, it will cause noise and vibration when the bearing is running, and even damage the rollers and rolling elements. Therefore, before installing the bearing, you must ensure that the installation surface and the installation environment are clean.
Must the bearing be cleaned before installation? The bearing surface is coated with anti-rust oil. You must carefully clean it with clean gasoline or kerosene, and then apply clean, high-quality or high-speed and high-temperature lubricating grease before installation. Cleanliness has a great influence on bearing life and vibration and noise. But what we want to remind you in particular is: fully enclosed bearings do not need to be cleaned and refueled.
How to choose lubricating grease 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 lubricating greases. Grease is made of base oil, thickener and additives. The performance of different types and different grades of the same type of grease varies greatly, and the allowable rotation limit is different. Please pay attention to it when choosing. The performance of the 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. Thickeners are 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 FAG 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 stirring of the grease, resulting in extremely high temperatures.