Paul,

I found a good paper on traction drives (34MB) complete with
illustration. It is interesting to note the researchers references to
the bearing like attributes of the device and the need for similar
alloys, hardness and tolerances.

http://www.grc.nasa.gov/WWW/StructuresMaterials/TribMech/research/A_gear_high_speed.html

Regards

Doug in Japan

I could not get this to load.
If somebody can get it to load please screen capture
the interesting parts and send them as jpg.

Paul Lamar


Paul

That is strange.  I just clicked on the address and it instantanty
loaded.  Do you want me to send the PDF to you? It has some history of
traction drives as well.  Did you know they have been around for about
100 years and an early car,  the Carter used a form of them.  GM did as
well but and was ready to mass produced it in the early days when top
management said "Nay".


Doug in Japan


I just tried it again and it worked.
The server must have been down at the time.

Paul Lamar