Deep groove ball bearings (DGBB) are the most common types of bearings that are durable and easy to maintain. Having a simple structure consisting of an outer ring, an inner ring, a ball, and a cage in various sizes, these are available in single and double-row designs as well as in open and sealed variants.

Compared with the other kinds of bearings, DGBB have a very low frictional coefficient and high-speed limit which makes them unable to endure high impact and heavy loads.