25 mm x 47 mm x 22 mm skf NKIS 25 Needle roller bearings with machined rings with an inner ring

LET 25 mm x 47 mm x 22 mm OUR TON BEARING CO.,LTD. 25 mm x 47 mm x 22 mm skf NKIS 25 Needle roller bearings with machined rings with an inner ring EXPERTS GET YOU THE 1300 Reference Speed Rating (r/min): PARTS YOU NEED. 380mm D

What is NKIS 25 bearing interchange？