This deep groove ball bearing carries radial and moderate axial loads on a single row of balls, with a bore of 160.0 mm, outside diameter of 340.0 mm, and width of 68.0 mm. Net mass is 31.2 kg. The bearing features a holding groove and a solid brass cage (M), with a ceramic coating on the bore for electrical insulation. Limiting speed is 3400.0 1/min, reference speed 2800.0 1/min. Radial internal clearance is C3, providing extra clearance to compensate for thermal expansion under operating conditions. The solid brass cage guarantees stable ball guidance at the given speeds, while the ceramic coating (J20C) prevents current passage through the bearing, protecting raceways and rolling elements from electrical erosion. The bore type Z should be checked against the shaft fit specification during mounting.