36,5125 mm x 72 mm x 42,86 mm Timken ER23DD deep groove ball bearings

36,5125 mm x 72 mm x 42,86 mm Timken ER23DD deep groove ball bearings Deal is your source for OEM deep groove ball bearings and accessories. R1/8" G We sell Genuinedeep groove ball bearings NTN BEARING CORP.OF AMERICA at discount prices. 36,5125 mm x 72 mm x 42,86 mm

What is ER23DD bearing interchange？