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 20.0 mm, outside diameter 52.0 mm, width 21.0 mm, with a net mass of 0.2 kg. The bearing reaches a limiting speed of 8900 1/min and is fitted on both sides with 2RSR seals, protecting the raceways from contamination and retaining lubricant inside the bearing. Radial internal clearance falls within group CN, suitable for standard fit and operating conditions without significant thermal or mounting-induced preload. The sealed design combined with the steel cage makes this bearing a maintenance-free solution once mounted, as relubrication is not required during service life. The listed limiting speed and clearance class define the operational boundaries within which the bearing should be applied.