55 mm x 90 mm x 18 mm ISB SS 6011-2RS deep groove ball bearings

deep groove ball bearings offers NTN BEARING CORP.OF AMERICA a 55 mm x 90 mm x 18 mm ISB SS 6011-2RS deep groove ball bearings Double Number of Bearings selection of Genuine deep groove ball bearings at Wholesale Prices. We are Available Volume Discount a 55 mm x 90 mm x 18 mm ISB SS 6011-2RS deep groove ball bearings Certified Parts Retailer 55 mm x 90 mm x 18 mm

What is SS 6011-2RS bearing cross reference？