This deep groove ball bearing carries radial and moderate axial loads in a single row of balls, with a bore of 25.0 mm, outside diameter of 52.0 mm, and width of 15.0 mm. It belongs to Generation C, fitted with shields on both sides (2Z) and a steel sheet metal cage (JN), giving a net mass of 0.125 kg. The limiting speed is 18400 1/min, with a reference speed of 16000 1/min. The radial internal clearance falls in the CN group, suitable for standard fit and load conditions without additional preload. The shields on both sides protect the raceway and balls from dust and coarse contamination while retaining the internal grease fill, making the bearing ready to mount without separate sealing components. The steel sheet metal cage keeps the ball set guided at the stated speed ratings, and the design supports applications where consistent radial clearance and shielded protection are required without a flanged outer ring.