This deep groove ball bearing carries radial and limited axial loads in a single row of balls, running on a steel sheet metal cage (cage code JN). The bore diameter is 12.0 mm, outside diameter 28.0 mm, and width 8.0 mm, giving a compact cross-section for tight housing bores. Mass is 0.02 kg. Seals are fitted on both sides (2HRS), keeping lubricant in and contaminants out without added maintenance. Limiting speed is rated at 24900 1/min, and the radial internal clearance is coded R$-$ as specified by the manufacturer. The sealed design and sheet metal cage suit applications where relubrication access is limited and moderate speeds apply within the stated limiting speed. The small bore and outside diameter make this bearing suitable for shaft arrangements requiring a slim, low-mass support point. Bore type Z should be checked against the shaft tolerance shown on the drawing before mounting.