Deep groove ball bearings are very widely used. A deep groove is formed on each inner and outer ring of the bearing enabling them to sustain radial and axial loads in either direction as well as well as the complex loads which result from the combination of these forces. Deep groove ball bearings are suitable for high speed applications. NTN Deep Groove Radial Ball Bearing, Round Bore Standard Medium, Series: 63 Series, 40 mm Bore, 90 mm OD, 1 Rows, 23 mm Width, Double Seal Closure, 40500 N Load, High Carbon Chrome Steel Bearing, Nitrile Rubber Seal, Pressed Steel Cage, 5300 RPM Grease Maximum, -40 to 120 °C