90 mm x 140 mm x 24 mm KOYO 6018N deep groove ball bearings

90 mm x 140 mm x 24 mm KOYO 6018N deep groove ball bearings AST BEARING OF AMERICA CORP. 90 mm x 140 mm x 24 mm with easy-to-use parts graphics, giving you the ability to check parts Steel cage material: availability, 90x140x24 Bearing pricing, examine remanufactured options.

What is 6018N bearing interchange？