**"Protecting FAG Imported Bearings: Grease is the Key"**
In the process of using FAG bearings, especially when they are in motion, it's crucial to pay attention to the amount of lubricating grease used. Accurately applying the right amount of grease is essential, as it ensures the stability and performance of the grease within the bearing. Understanding how the grease moves inside a rolling bearing like the 6316-2RS model is vital for maintaining its efficiency.
When the grease isn't evenly distributed in the bearing, it can lead to poor performance, reduced lifespan, and unstable operating temperatures. This is why the quality and consistency of the grease are so important. If the grease is not properly applied, the bearing may not function as intended, and the system could suffer from early wear or failure.
In some cases, too much grease is added to FAG bearings, exceeding the theoretical requirement. This excess fills the housing and the bearing cover, creating a buildup around the rolling elements. During operation, this can cause increased resistance, leading to a rapid rise in temperature. Although some of the excess grease may be squeezed out initially, the remaining portion can still be redistributed and carried into the raceway by the moving components.
During the initial phase of operation, most of the excess grease is quickly expelled from the raceway—often within less than a minute. The remaining grease accumulates in the bearing and continues to be released gradually. As the bearing runs, the grease will eventually be fully discharged, depending on the type of grease, the amount used, and the bearing design. This period can last anywhere from a few minutes to several hours.
When adding grease to anti-friction bearings, high pressure is usually unnecessary unless done with extreme care. Excessive pressure can damage the bearing and cause the grease to break down. Too much grease can also lead to overheating and create unsafe conditions around the FAG bearings.
In most applications, ball or roller bearings can be fully lubricated if the grease level fills about one-third to one-half of the bearing’s capacity. Any excess will typically be expelled through the seals or drained away. Proper grease management helps ensure smooth operation and extends the life of the bearing.
FAG bearings generally consist of two hardened steel rings, multiple hardened balls or rollers, and a cage that separates the rolling elements. These types come in various designs, with some, like needle bearings, being constructed without an inner ring, allowing the rollers to move directly on the hardened shaft.
If you found this information helpful, feel free to share it with your friends or leave a comment. Don’t forget to check out our other articles on bearing knowledge and maintenance tips.
**Related Bearing Knowledge:**
- Rolling Bearing Accuracy Grade
- NTN Bearing Maintenance and Inspection
- Bearing Clearance Selection Criteria
- Types of Industrial Bearings and Their Applications
This article was originally published on China Bearing Network. For more information, visit [http://www.chinabearing.net](http://www.chinabearing.net).
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