Carries radial loads in a compact deep groove ball bearing arrangement with a bore of 15.0 mm, outside diameter of 28.0 mm and width of 7.0 mm, weighing 0.016 kg. The single row of balls runs in a steel sheet metal cage (JN), with a limiting speed of 14300.0 1/min and radial internal clearance CN (Group N). Both sides are fitted with seals (2RSR), giving a sealed bearing that retains grease and blocks contaminants from entering the raceway. The CN clearance places this bearing in the standard range, suitable for shaft and housing fits without added preload from clearance selection. Being sealed on both sides, it runs without external relubrication and keeps the internal grease fill protected, making it fit for continuous operation up to the stated limiting speed without additional shielding. Dimensionally and constructionally interchangeable with SKF 61902-2RS1, NSK 61902DDU and NTN 61902LLU.