Deep-groove ball bearings

according to DIN EN ISO 625-1

Deep-groove ball bearings are versatile, self-retaining bearings with one-piece outer rings, inner rings and ball-cage assemblies. These simply designed products, which are durable and easy to maintain during operation, are available in single-row and double-row as well as open and sealed variants. Because of their very low frictional torque, deep-groove ball bearings are suitable for high and extremely high speeds.
Deep-groove ball bearings with a flange have a rib on the outer ring, which allows them to be secured axially against shifting.