137-1720, FAG, FAG 6306-2RSR-C3 Single Row Deep Groove Ball Bearing- Both Sides Sealed 30mm I.D, 72mm O.D, Brand FAG, Inside Diameter 30mm, Outside Diameter 72mm FAG 6306-2RSR-C3 Single Row Deep Groove Ball Bearing- Both Sides Sealed 30mm I.D, 72mm O.D