This is in response to Tim's posting about the belting sources.  I have
one of those spool boxes from Stidham also.  I guess the belt is some
sort of polyurethane hollow tube.  Mine is still soft however.  Here's
some possible sources:

  Small Parts Inc.
  l3980 North West 58th Court, (or PO Box 4650), Miami Lakes, FL 33014
  1-800-220-4242.

They have some green poly belting in 1/8, 3/16 and 1/4 inch size which
you heat the ends and join together I think.  Maybe they would also
have some small sprockets and chain which could replace the belt.

  Baltimore Belting Co.
  766 East 25th Street, Baltimore, MD. 21218
  1-410-338-1230.

I think they also have some type of poly stuff for belts too.

Hope this helps.

Bill Black