50 mm x 80 mm x 16 mm KOYO 6010Z deep groove ball bearings

50x80x16 Bearing SKF Wheel Bearings DEVELOP MFG.CORP. offers a 50 mm x 80 mm x 16 mm 50 mm x 80 mm x 16 mm KOYO 6010Z deep groove ball bearings selection Non-Expansion Bearin expansion type: of 1-11/32 in B Genuine 50x80x16 Bearing at Wholesale Prices. We are a 50 mm x 80 mm x 16 mm KOYO 6010Z deep groove ball bearings Certified Parts Retailer

What is 6010Z bearing interchange？