90 mm x 140 mm x 24 mm ZEN S6018-2RS deep groove ball bearings

90 mm x 140 mm x 24 mm ZEN S6018-2RS deep groove ball bearings 90 mm x 140 mm x 24 mm Deal is your source for AST BEARING OF AMERICA CORP. OEM 90x140x24 Bearing and accessories. We sell Genuine90x140x24 Bearing at Open Type Seals or Shields: discount prices.

What is S6018-2RS bearing cross reference？