55 mm x 140 mm x 33 mm NSK NUP 411 cylindrical roller bearings

55x140x33 Bearing offers a 55 mm x 140 mm x 33 mm 55 mm x 140 mm x 33 mm NSK NUP 411 cylindrical roller bearings selection of Genuine 55x140x33 Bearing at Wholesale Prices. We Bearing Noun are a 55 mm x 140 mm x 33 mm NSK NUP 411 cylindrical roller bearings Certified Parts AST BEARING OF AMERICA CORP. Retailer

What is NUP 411 bearing interchange？