This deep groove ball bearing carries radial and moderate axial loads in a single row of balls running on a solid brass cage (M), with bore diameter 110.0 mm, outside diameter 240.0 mm, width 50.0 mm and a mass of 11.5 kg. The bearing is fitted with a ceramic coating (J20GA) on the bore, providing electrical insulation, and runs with C3 internal clearance, wider than standard to compensate for thermal expansion during operation. Limiting speed is rated at 4950 1/min, with a reference speed of 4150 1/min. The ceramic coating on the bore breaks the electrical current path through the bearing, protecting the raceways from damage caused by stray current passing through the shaft. The solid brass cage keeps the balls evenly spaced and allows stable operation at the rated speeds, while the C3 clearance accommodates the additional heat generated in this operating range. As an open bearing without integrated seals, it requires separate sealing and periodic relubrication at the mounting location.