"Joe" wrote in message
...
On Fri, 25 Mar 2005 03:26:37 GMT, Anthony VanCampen

Another gentleman mention heat buildup. In trying to troubleshoot the
problem before I've ran the saw continuously for about ten minutes
without a blade, shut it down, and felt the arbor assembly and it was
not warm at all. I know that heat=friction=heat - a lesson learned
from running high rpm, high power RC model airplane engines over the
years.

All this means is that the arbor doesn't get very hot when it is running
with no load. When the motor is really loaded down (i.e. developing rated
power), it will be 60C hotter than ambient.
You would definitely consider that hot, but the arbor bearings should be
much much cooler.
Jim