Paul,
This morning I was following a lead on that I hoped would yield some
additional info on the Theseus cooling system when I stumbled onto this
NASA paper on traction drives.  The title is  "Design of  Traction
Drives".  Here is the abstract:
*ABSTRACT: *
Traction drives are among the simplest of all speed-changing mechanisms.
Because of their simplicity and their ability to smoothly and
continuously adjust speed, they are excellent choices for many drive
system applications. They have been used in industrial service for more
than 100 years. Today's traction drives have power capacities which
rival the best gear and belt drives due to modern traction fluids and
highly fatigue-resistant bearing steels. This report summarizes methods
to analyze and size traction drives. Lubrication principles, contact
kinematics, stress, fatigue life, and performance prediction methods are
presented. The effects of the lubricant's traction characteristics on
life and power loss are discussed. An example problem is given which
illustrates the effects of spin on power loss. Loading mechanism design
and the design of nonlubricated friction wheels and rings are also treated.

The PDF is 35 meg, so, I didn't download the whole article.  The link to
it can be found at the bottom of this page:
http://gltrs.grc.nasa.gov/cgi-bin/GLTRS/browse.pl?1985/RP-1154.html

Aubrey

Thanks Aubrey I'll down load it now.

Paul Lamar ...No rotor no motor.

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