31.75 mm x 72 mm x 37,7 mm Timken 1104KRR deep groove ball bearings

YOU’LL 31.75 mm x 72 mm x 37,7 mm FIND AN EXTENSIVE SELECTION One Shield Accessories 75.000 mm d OF NTN BEARING CORP.OF CANADA LTD. 31.75 mm x 72 mm x 37,7 mm Timken 1104KRR deep groove ball bearings FOR SALE.

What is 1104KRR bearing interchange？