wrote in message
ups.com...
| I heard of something once that worked like form-a-thread I believe.
| You put a paste on a worn area of a shaft and when it cured you could
| machine it back to the original diameter.
| We have a shaft in an old horizontal mill. One end is worn about .030
| and fits into a bearing. They have been running this machine slotting
| screws for years but I want it fixed. This seeems like the easiest way
| if it works.


Lab Metal by Alvin Products. Easy to find on the web. I got a 24oz can
of it for about 25 bucks at a local fastener supplier. You can build up all
sorts of things. The putty isn't a glue or adhesive, FWIW, and it seems to
have aluminum as the filler. Cures to the consistency of lead or similar.
You can machine it and all that, too. Industry uses it for filling holes
and pits in castings and welds. Sort of a heavy duty bondo in that
application. Excellent stuff. There's a high temp version of the same
stuff.