60 mm x 130 mm x 31 mm NSK 6312DDU deep groove ball bearings

The online 60 mm x 130 mm x 31 mm NSK 6312DDU deep groove ball bearings parts store gives you immediate access to NTN BEARING CORP.OF AMERICA a selection of more than 1.4 million new, used, remanufactured. 60 mm x 130 mm x 31 mm

What is 6312DDU bearing interchange？