The two major categories of bearings used in industry are?

The two major categories of bearings used in industry are plain bearings and anti-friction bearings. Plain bearings, also known as bushings or journal bearings, consist of a simple bearing surface that can be made of materials such as metal or polymer. They rely on a sliding motion to minimize friction between moving parts, suitable for applications where loads are not excessively high and speed is moderate.

On the other hand, anti-friction bearings include rolling elements like balls or rollers within the bearing assembly. This design significantly reduces the friction between moving parts, allowing for smoother operation and higher efficiency in machinery. Anti-friction bearings are crucial in applications that require high-speed rotation and reduced energy loss.

Understanding these categories is essential in maintenance awareness, as it helps identify the right type of bearing for various mechanical applications and informs maintenance practices necessary to ensure their optimal functioning and longevity.