[matthewdenny]

Heres my back of the napkin calculations:

the motor is using ~23 Amps @ 12 V for a power of 276 W

The banebots page lists the motor at 78% efficient, so I'm going to round that down to 65%

so 35% of the 276 W goes to heat = 96 W of heat

96W * 150 seconds of game time* 70% duty cycle during match = 10100 Joules of heat

Q=mC(deltaT) ... m=337 g Csteel= .47

deltaT = 64 C

Which would make it pretty hot, but the motor blows air as it is moving, and conducts heat to the gearbox and surrounding air. Not sure how to calculate the convection through it.