This deep groove ball bearing carries radial loads in a single row of balls, with a bore of 130.0 mm, outside diameter of 280.0 mm, and width of 58.0 mm. Net mass is 18.3 kg. The bearing features a solid brass cage (M) and radial internal clearance C4, giving greater internal play than standard clearance. Limiting speed is rated at 4150.0 1/min and reference speed at 3500.0 1/min. The C4 clearance compensates for thermal expansion of the shaft and inner ring during operation at elevated temperatures or under interference fits, keeping the bearing from running too tight. The solid brass cage adds mechanical strength and stability at higher speeds and under thermal load compared to pressed steel cages. As an open bearing without integrated seals or shields, it requires external sealing and a separate lubrication supply, whether grease or oil, matched to the operating speed and temperature.