A good discussion of various roller bearing details (i.e. wound journal roller bearings) is seen at
https://www.ptintl.com/products/medi...2-253_Eich.pdf
This discussion is aligned with the cluster gear/main shaft bearing discussion of another thread found at
https://www.fordbarn.com/forum/showthread.php?t=321351
I have called these "spring rollers" in this other thread.
Joe K