TASCAM 32 34 38 22-2 and many othes capstan bearing
This is a standard bearing used widely in all of the old TASCAM and TEAC reel to reel recorders this one came from a TASCAM 38
sometimes people do not put a bit of light oil on the shafts so the bearings get worn and effect the wow and flutter figures, 6mm hole size so can be used
for other applications.
these are easy to replace
I have now see that this is a standard throughout all the machines with another variant that has a threaded side these are not threaded