Or lack thereof.
Tests using various cage-to-race tightnesses showed no motoring effect
whatsoever, even with enough current applied to cause heavy automotive jumper
cables to become uncomfortably hot. Identical shaft and flywheel setup was used
as in the ball bearing motor which works flawlessly. With this setup, there is
no noticeable change in deceleration speed of the motor, though the 'growling'
noise of the internal arcing is still heard, as with the ball bearing motor.
Bearings used (2): National Bearing S-A-12 automobile wheel bearings, obtained
from Advance Auto Parts.
Shaft: 5/8" all thread, steel. 12" long.
Power supply: 12V 1200 peak Ampere car booster
Horace... I did look for nonmagnetic bearings composed of brass or something
similar. Nothing here. If I have some spare time (not sure when for a while) I
will go down to Buffalo Bearing and ask what can be had.
--Kyle
