This deep groove ball bearing carries a single row of balls between bore and outside rings, fitted with seals on both sides and a steel sheet metal cage. Bore diameter is 8.0 mm, outside diameter 19.0 mm, width 6.0 mm, and net mass is 7.57 g. Radial internal clearance is C3 (Group 3), providing a larger internal clearance than standard, and the limiting speed reaches 25500 1/min. The C3 clearance compensates for temperature rise and interference fit effects during operation, keeping the bearing free of preload under such conditions. The two-side sealing arrangement retains grease inside the bearing and blocks contaminants from entering, so the unit runs without additional external protection and requires no relubrication during service life. The steel sheet metal cage guides the balls at the stated speed limit while keeping the bearing compact for its small bore and outside diameter.