240 mm x 440 mm x 72 mm KOYO N248 cylindrical roller bearings

KOYO Bearing LLC NTN-SNR BEARINGS RUS offers a 240 mm x 440 mm x 72 mm KOYO N248 cylindrical roller bearings selection of 240 mm x 440 mm x 72 mm Genuine KOYO Bearing at Wholesale Prices. We are a 240 mm x 440 mm x 72 mm KOYO N248 cylindrical roller bearings Certified Parts Retailer PT INTERNATIONAL Manufacturer Name

What is N248 bearing cross reference？