Deep Groove Ball bearing, Self-aligning Ball bearing

Ball bearings are the most common type of rolling element bearing. They have a single row of balls held in place by a cage, usually made of steel, that rotates between two rings with polished raceways. The design of the ball bearing allows for axial and radial loading while operating at high speeds. These radial bearings often come with shields or seals to protect the inside of the bearing from contamination in the application.