Deep groove ball bearing supporting radial loads and moderate axial loads in a single row of balls, with a solid brass cage (M) guiding the rolling elements at higher speeds. Bore diameter is 160.0 mm, outside diameter 340.0 mm, width 68.0 mm, net mass 31.8 kg. Limiting speed reaches 3400 1/min, reference speed 2800 1/min, bore type Z. Radial internal clearance C3 (Group 3) allows the bearing to accommodate greater thermal expansion and shaft fit tightness than standard clearance, which suits applications with elevated operating temperatures or interference fits. The solid brass cage provides stable ball guidance under the higher speed range indicated by the limiting and reference speed values, making this bearing suitable where speed capability and clearance margin are the deciding factors. No sealing or shielding is included, so lubricant supply and contamination protection must be arranged externally.