Deep groove ball bearing 6068-M carries radial loads through a single row of balls guided by a solid brass cage, bore 340.0 mm, outside diameter 520.0 mm, width 82.0 mm, with a net mass of 63.2 kg. The limiting speed reaches 2050 1/min, the reference speed 1630 1/min, and internal clearance is set to CN (Group N). The solid brass cage keeps ball spacing stable at higher speeds and under momentary load peaks, supporting the rated speed values. Standard CN clearance suits normal running conditions without preload, while the single-row deep groove design accommodates combined radial and moderate axial loads. Mounting requires separate sealing and a defined lubrication regime, as the bearing is supplied open, without integrated seals or shields.