SKF 6306-2RS/C3 deep groove ball bearing Type: deep groove ball bearing Lubrication: Oil or Grease Dimensions: 30mmX72mmX19mm ID (inner diameter)/Bore: 30mm OD (outer diameter):72mm Width/Height/thickness: 19mm Dynamic load rating Cr: 26.7KN Satic load rating Cor: 15.0KN Chrome steel,Carbon steel, Stainless steel Lmiting Speed: Grease Lubrication: 6600R/M Oil Lubrication: 12000R/M This kind of bearing is widely used in gear box, instrument, electrical machine,household appliance, agricultural machinery, buliding machinery, engineering machinery ect. It can be bear Radial load and Axial, small friction torque, it is suitable for high speed rotation, low noise and low vibrate.