Do you think a jaguar will run for a few days constant?

[josesantos]

Originally Posted by pilleya

It should be fine a Neverest motor is only 14watts so just a bit over 1 amp current draw. I would suggest adding another fan, to cool it as the Jaguar fan is dynamic.

Have you considered that maybe it is your spool holder which is causing the problem, maybe a lower friction one could reduce your problem.

*Sorry this is slightly off-topic*

14 watts is the maximum output (mechanical) power of the motor, not the input (electrical power). The electrical power needed to generate this is actually 69 watts, or 5.75 amps (half of the stall current) at 12V.

For continuous applications like the OP's, I'd recommend running at peak efficiency, which means drawing ~1/5 of stall current or ~2.3 A. Of course, in the worst case the motor will somehow jam and stall, in which case it will draw the full stall current of 11.5 A, which is still well within limits of the Jag, but the motor may not be so happy. A fuse/breaker or smart current limiting using the Jag's current readout can save your motor in this case.

VEX's motor page has a pretty good introduction to (brushed) DC motor theory/curves.