Deep groove ball bearings are probably the most widely used and most recognized ball bearing. These bearings have one row of balls(referred to as a single row), which revolves around the ball path. Although designed to primarily carry radial loads, a deep groove ball bearings's raceways are deep enough that it can also carry reasonable thrust loads.(however, if thrust loads are excessive, an alternative type of bearing should be considered. )
Deep groove ball bearing have various types in structure, beside open type bearings, shield or seals at both side can also be provided.