IHC Bearings

["Allan Weidenheimer" <allanw@domain.elided>]

I've noticed in my IHC parts manual, many times bearings
have part numbers like "ST292", and "ST518".  These are items like
the pilot bearing, NP205 x-case output bearing, etc.
I think I read that the 'ST' denotes a standard bearing, but
these are not bearing numbers.  Does anyone have a cross
reference that converts these ST numbers to Timken, 
Torrington, NDK, etc. numbers?

Allan Weidenheimer
72 1210 pickup