This deep groove ball bearing carries radial and moderate axial loads on a shaft with a 12.0 mm bore, 28.0 mm outside diameter and 8.0 mm width, weighing 22.0 g. It is made from corrosion-resistant materials and fitted with a steel sheet metal cage (JN). Both sides are protected by 2RSR seals, and the limiting speed reaches 15500.0 1/min. The radial internal clearance falls in group CN, giving standard running clearance suited to normal fit and load conditions. The sealed design keeps out contamination and retains lubricant, so the bearing can run without added maintenance once initially greased. The corrosion-resistant construction allows use in damp or chemically exposed conditions where standard steel bearings would degrade.