This deep groove ball bearing carries radial and moderate axial loads through a single row of balls guided by a steel sheet metal cage (JN). Bore diameter is 40.0 mm, outside diameter 90.0 mm, width 33.0 mm, and net mass is 0.882 kg. The limiting speed reaches 4750.0 1/min, and radial internal clearance is CN (Group N). Sealing on both sides (2RSR) keeps contaminants out and retains lubricant inside, so relubrication is not required during service life. The CN clearance suits standard operating conditions without special fit adjustments, and the sheet metal cage keeps the design lightweight while maintaining ball guidance at the stated speed range. The 62308-A-2RSR designation should be used for ordering and cross-checking against the 40 mm bore, 90 mm outside diameter, and 33 mm width when fitting into a housing.