Deep groove ball bearing 6030-M-C3 carries radial loads in a single row of balls with a bore of 150.0 mm, outside diameter of 225.0 mm and width of 35.0 mm, weighing 4.93 kg. The cage is a solid brass cage (M), which withstands higher operating temperatures and speeds than a pressed-steel design. Limiting speed is rated at 5100.0 1/min and reference speed at 3850.0 1/min. Radial internal clearance corresponds to C3 (Group 3), giving more internal play than normal clearance, which compensates for tighter fits and thermal expansion during operation. The solid brass cage keeps the balls evenly guided at higher speeds and reduces friction losses. This bearing is supplied without seals or shields, so lubrication and contamination protection must be provided externally by the housing design.