50 mm x 90 mm x 30,2 mm NKE GRAE50-NPPB deep groove ball bearings

50 mm x 90 mm x 30,2 mm NKE GRAE50-NPPB deep groove ball bearings Deal No Bearing Retained is your source for OEM deep groove ball bearings and accessories. We sell NTN BEARING CORP.OF AMERICA 50 mm x 90 mm x 30,2 mm Genuinedeep groove ball bearings at discount prices.

What is GRAE50-NPPB bearing cross reference？