Deep groove ball bearing carrying radial and moderate axial loads in a single row of balls guided by a solid brass cage (M). The bore is 95.0 mm, outside diameter 200.0 mm, width 45.0 mm, net mass 6.9 kg. Radial internal clearance is C4 (Group 4), wider than standard, and the bearing is designated J20GA with a ceramic coating applied to the bore or outside surface for electrical insulation. Limiting speed is 6000 1/min, reference speed 4950 1/min. The C4 clearance compensates for temperature rise and interference fits, allowing the bearing to run without excessive preload under such conditions. The solid brass cage supports stable ball guidance at the given speed range and adds resistance to cage wear compared to pressed steel versions. The ceramic coating breaks the electrical path across the bearing, preventing current passage through the rolling elements, so mounting and shaft/housing fits should preserve the insulation integrity. No sealing is provided, so relubrication and contamination control depend on the housing design.