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 Expansion Compensating Bearing, Round Bore Standard Small, Series: EC-63, 30 mm Bore Dia, 72 mm Outside Dia, 1 Row, 19 mm W, Open Closure, 26700 N, High Carbon Chrome Steel Bearing, Pressed Steel Cage, 10000 RPM Grease/12000 RPM Oil Maximum, -40 to 120 °C