55 mm x 72 mm x 9 mm 55 mm x 72 mm x 9 mm skf W 61811-2Z Deep groove ball bearings

The online 55 mm x 72 mm x 9 mm 55 mm x 72 mm x 9 mm skf W 61811-2Z Deep groove ball bearings parts store 2.1875 in d gives you immediate access to a selection of 55 mm x 72 mm x 9 mm more than 1.4 million NTN BEARING MANUFACTURING DE MEXICO,S.A.DE C.V. 0.3750 in roller diameter: new, used, remanufactured.

What is W 61811-2Z bearing cross reference？