Carries radial loads in a single row of balls running in deep raceways, with shields on both sides and a steel sheet metal cage of type JN. The FAG 6306-C-2Z-L069-C3 belongs to Generation C, has a 30.0 mm bore, 72.0 mm outside diameter and 19.0 mm width, bore type Z, and a net mass of 0.368 kg. Reference speed is 11500 1/min, limiting speed 12800 1/min. The C3 radial internal clearance is wider than normal, which leaves room for interference fits and for thermal expansion between inner and outer ring in service. The shields retain the grease fill and keep the bearing closed, so no relubrication arrangement is needed; the unit is installed as supplied.