Single row deep groove ball bearings are the most widely used roller bearing type in the world due to their versatility and overall performance. They are characterized by having deep raceway grooves in which the inner and outer rings have circular arcs of slightly larger radius than that of the balls. They also have non-separable rings.

Single row deep groove ball bearings are the most widely used bearing type . They are available capped (with seals or shields) or open. They are available capped (with seals or shields) or open. Open bearings that are also available capped may have recesses in the ring side faces.