This deep groove ball bearing carries radial and moderate axial loads through a single row of balls running on a solid brass cage, marked M. Bore diameter is 90.0 mm, outside diameter 190.0 mm, width 43.0 mm, and net mass 6.075 kg. The limiting speed is rated at 6300.0 1/min, with a reference speed of 5100.0 1/min. Radial internal clearance is C3 (Group 3), which is wider than standard. The solid brass cage gives stable ball guidance and mechanical strength at higher rotational speeds and under thermal load, making the bearing suitable for applications where speed reserve and cage durability matter more than a standard steel cage would allow. The C3 clearance compensates for thermal expansion of the shaft and housing during operation, keeping the bearing free of excessive preload once operating temperature is reached. As an open bearing without integrated sealing, it requires external sealing and grease or oil lubrication appropriate to the operating speed and temperature at the mounting location.