45 mm x 85 mm x 19 mm NTN NF209 Single row cylindrical roller bearings

Single row cylindrical roller bearings offers a 1-15/16 in d 45 mm x 85 mm x 19 mm NTN NF209 Single row cylindrical roller bearings selection of BEARING INDUSTRIA CUSCINETTI S.P.A. Genuine Single row cylindrical roller bearings at Wholesale 45 mm x 85 mm x 19 mm Prices. We are a 45 mm x 85 mm x 19 mm NTN NF209 Single row cylindrical roller bearings Certified Parts Retailer

What is NF209 bearing cross reference？