robot Voltronic (Multiple 2nd place BattleBots winner!) has used
the Leeson M1120046 motors for drive as well as the lifter mechanism,
for several years.
Stephen Felk says, "... they match up real well with
Vantec 36s. I love 'em... This maybe very unscientific, but in
practice with the Volt, after 30 minutes of hard 'combat' driving,
both motors and Vantec would be barely warm."