When I replaced the brushes, I ran the motor overnight on my garage floor, running straight off a 12V battery.
I was told that it's good to "break-in" brushes by just letting them run a long time on a slow speed.
When running the motor that long, I did notice that the bearing end was warm to the touch. So I take back my words in the motor NEVER being warm. That end of it, running that long was warm. But that's the only time.
I will check on the bearing end next time I go on a long run.
Does anyone have recommendations for a simple/cheap remotely-read temperature sensor?
I would like several, one for the motor, one for a motor brush, one for the front batteries, and one for the rear batteries. Simple and cheap get bonus points!
[EDIT]
Hmm.
These don't look too bad. $10 each.
