operate smoothly. They are usually made of a sealed metal ring with perfectly smooth metal balls with lubricant. Under extreme stress the bearings spin easily and are controlled.
In the end, all bearings are likely to fail. There are a variety of reasons bearings may fail. There are times when the lubricant leaks into the bearings, causing the metal balls inside to get too hot or to sustain friction-induced damage. Bearings can become misaligned when they’re subjected to too much stress.
There is the option of replacing or rebuilding a bearing if it fails. Rebabbiting is the method to repair damaged bearings. The majority of bearings are made with standard dimensions are less costly to replace than they are to rebabbit. But, if you’re dealing with a custom or very large bearing, rebabbitting is likely to be a viable option in case of failure.
To find out more about the way the process works for rebabbitting bearings check out the video linked above. It shows the entire process of rebabbitting in a professional machine shop.