This deep groove ball bearing carries radial load in a single row of balls and locates the shaft without an internal gap under light axial loads. The bore diameter is 460.0 mm, outside diameter 680.0 mm, and width 100.0 mm, giving the housing and shaft seating dimensions for assembly. Net mass is 124.0 kg. The cage is a solid brass type (M), guiding the balls at speed with low wear. Limiting speed is rated at 1550.0 1/min, reference speed at 1200.0 1/min. Radial internal clearance C4 (Group 4) is wider than standard, compensating for temperature rise and interference fit effects on large bores so the bearing does not bind after mounting. Bore type Z indicates the bore tolerance variant to match against the shaft fit selected for this size. The brass cage construction suits the higher circumferential speeds reached at this diameter range and keeps ball spacing stable under the radial load the bearing is set to carry.