So, how does the world work today? What makes it work the way it does? There are loads of things, such as airplanes, cell phones, electricity and so on and so forth. What you may not have noticed is the role of ball bearings that enable at least two of the most important functions. If they didn’t exist, we would not be able to use our cars. Similarly, engines wouldn’t work either. The role of these “balls” is to reduce the amount of friction in addition to keep the parts in place. Let’s read further about the types and uses of bearings.