This is a single row deep groove ball bearing made from corrosion-resistant materials, with a bore diameter of 30.0 mm, outside diameter of 55.0 mm and width of 13.0 mm. Net mass is 0.1 kg and the limiting speed is 7000.0 1/min. The bearing is sealed on both sides, fitted with a steel sheet metal cage (JN), and features radial internal clearance CN (Group N). The corrosion-resistant construction allows use in environments where standard bearing steel would be prone to rust or chemical attack. The double-sided seals retain factory grease and keep out contaminants, so no external relubrication is required during service. Radial internal clearance CN suits standard-fit applications without special preload requirements, and the steel cage provides stable ball guidance across the rated speed range.