This deep groove ball bearing carries radial loads in a single row of balls running in a solid brass cage (M), providing stable ball guidance and consistent operation at higher speeds. Bore diameter is 220.0 mm, outside diameter 340.0 mm, width 56.0 mm, and net mass reaches 18.7 kg. The limiting speed is rated at 3300.0 1/min, with a reference speed of 2700.0 1/min. The radial internal clearance is C4 (Group 4), larger than standard, which compensates for thermal expansion and interference fit effects during operation, keeping the bearing free of excessive preload. The solid brass cage supports reliable performance at the upper end of the speed range and under elevated operating temperatures. As an open bearing without integrated sealing, it requires external sealing and a separate lubrication supply, with relubrication intervals set according to the operating conditions.