Deep groove ball bearing Ball bearings are used to provide smooth, low friction motion in rotary applications. Ball bearings types include radial ball bearings (deep groove and angular contact) and thrust ball bearings. Deep groove ball bearings are used in a particularly wide variety of applications. Consequently, they are available in many executions and sizes. The standard skf range comprises the following types: Single row deep groove ball bearings Single row deep groove ball bearings with filling slots Stainless steel single row deep groove ball bearings Double row deep groove ball bearings