This deep groove ball bearing carries radial and moderate axial loads through a single row of balls guided by a solid brass cage (designation M). Bore diameter is 180.0 mm, outside diameter 280.0 mm, width 46.0 mm, and net mass 10.6 kg. The bearing is rated for a limiting speed of 4050.0 1/min and a reference speed of 3300.0 1/min, with internal clearance in class C3 (Group 3), giving a wider running clearance than standard for compensating thermal expansion during operation. The C3 clearance allows the bearing to run reliably under conditions where heat generation increases the effective fit between rings and rolling elements, keeping preload from becoming excessive. The solid brass cage supports stable ball guidance at the given speed range and adds strength under higher operating temperatures compared to pressed steel cages. As an open bearing without integrated sealing or shielding, it requires external sealing and separate lubrication management appropriate to the mounting arrangement.