30 mm x 42 mm x 7 mm SKF W 61806-2RZ deep groove ball bearings

SKF Bearing offers a 30 mm x 42 mm x 7 mm SKF W 61806-2RZ deep groove ball bearings selection of Genuine SKF Bearing at Wholesale Prices. We 30 mm x 42 mm x 7 mm are Bearing de Mexico, S.A. a 30 mm x 42 mm x 7 mm SKF W 61806-2RZ deep groove ball bearings Certified Parts Retailer

What is W 61806-2RZ bearing cross reference？