Single Row Radial Ball Bearings are the most widely used bearings and utilize an uninterrupted raceway, which makes these bearings suitable for radial loads, or a combination of thrust and radial loads. This design permits precision tolerances even at high speed operation. The cage in this bearing is pressed steel. For high speed bearings, machined brass cages are available. Bearings with locating snap rings are also available. NTN Deep Groove Radial Ball Bearing, Round Bore Extra Small, Series: Micro, 8 mm Bore, 19 mm OD, 1 Rows, 6 mm Width, Double Shield Closure, 1990 N Load, High Carbon Chrome Steel Bearing, Pressed Steel Cage, 33000 RPM Grease Maximum, -40 to 120 °C