In article ,
says...
Those are great links. It looks like Pyrathane dental engine belts
are exactly what I want and also pretty inexpensive. However it
appears these dental suppliers only sell to dentists.


Pytrathane is a tradename of Pyramid, Inc. They'll make any
belt length to order and will sell direct. Be sure to
follow the stretch recommendations (around 10-15% IIRC)
when figuring belt length.

http://www.pyramidbelts.com/

You can also buy open lengths of the belting material. It's
pretty easy to weld with a heat gun once you get the hang
of it, but if you're confident of the proper length it's
really not worth doing yourself.

My only connection to Pyramid is as a happy customer.

Ned Simmons