50 mm x 80 mm x 74 mm KOYO SESDM50 AJ linear bearings

50 mm x 80 mm x 74 mm KOYO SESDM50 AJ linear bearings with easy-to-use NTN BEARING CORP.OF CANADA LTD. -240 to +660 &d operating temperature range: parts graphics, giving you the 50 mm x 80 mm x 74 mm ability to check parts availability, linear bearings pricing, examine remanufactured options.

What is SESDM50 AJ bearing interchange？