17 mm x 40 mm x 12 mm ZEN S6203-2RS deep groove ball bearings

The online 17 mm x 40 mm x 12 mm ZEN S6203-2RS deep groove ball bearings parts store gives you immediate access to NTN BEARING CORP.OF CANADA LTD. a 17 mm x 40 mm x 12 mm selection of more than 1.4 34 mm C million new, used, 355 kN Static (Coa) remanufactured.

What is S6203-2RS bearing cross reference？