The design of Double Row Deep Groove Ball Bearings is almost the same as the Single Row Deep Groove Ball Bearings.Due to its raceway with deep groove shape and the excellent coherent degree between the raceway and the steel ball, it can bear radial load and axial load in two directions. The Double Row Deep Groove Ball Bearings is suitable for used in a position where lack of load capacity when using Single Row Deep Groove Ball Bearings. Its outside diameter and inside diameter are the same as the Single Row Deep Groove Ball Bearing, and its width is big ,its load capacity is much more bigger than Single Row Deep Groove Ball Bearing of series 62 and 63.