Rolling bearings or ball bearings are crucial components needed in fabricating the oscillating or rotating components of various machines. Deep groove ball bearings can support and guide the rotational movement and even transfer loads between various components, such as shafts, axles, and wheels. Ball bearings, unlike other rolling bearings, have a rolling element. The ball occupies a spot in the ring raceway or groove, which, in turn, results in a relatively low area of contact. While the reduced contact area brings down friction, it decreases the amount of weight the bearing can handle. Reference Link:  https://articlescad.com/a-basic-guide-to-deep-groove-ball-bearings-5097.html