Bicycle bearing (7)Single-row deep groove ball bearings are the most common type of rolling bearings, having a wide range of suitable applications. The raceway grooves on both inner and outer rings have circular arcs of slightly larger radius than that of the balls. In addition to radial loads, axial loads can be applied in either direction. Because of their low torque, they offer high speed operation with low power loss.
Several tolerance grades and cage designs are available to best suit the running precision and speed requirements of your applications.