90 mm x 140 mm x 24 mm ISB 6018 NR deep groove ball bearings

90 mm x 140 mm x 24 mm ISB 6018 NR deep groove ball bearings SEARCH AST BEARING OF AMERICA CORP. - Whether 90 mm x 140 mm x 24 mm it's agriculture or construction equipment your working ABEC 1 (ISO Cla precision rating: on, Has the90x140x24 Bearing you need.

What is 6018 NR bearing cross reference？