80 mm x 142 mm x 39 mm KOYO TRA161404 tapered roller bearings

The RoHS, REACH, DRC Con standards met: online 80 mm x 142 mm x 39 mm KOYO TRA161404 tapered roller bearings parts store gives you immediate access to a selection BEARING BOWER CORP. of 80 mm x 142 mm x 39 mm more than 1.4 million new, used, remanufactured. 2 in D

What is TRA161404 bearing interchange？