"DanG" wrote in message
...
I don't know your ultimate goal, but 1/4" chrome rod in nylon or Delrin
would last a long time and be fairly easy to work. I would use it as a
mountable block rather than as a bushing.

It could be done as a mountable block although space is limited. There are
some issues in my mind regarding accuracy (or is that precision) of
replacement parts, but I suppose if I looked at it with block mounting in
mind I could figure that out.