[EricH]

If you're thinking of using it to hang, the answer is "not enough". Planetary gearboxes as a general thing take a lot less force to backdrive than you might think. 150 lb of robot will probably do the trick as far as backdriving that. It won't be the easiest thing in the world to get going, but it will probably get going eventually.

BTW, the no-load speed is the BAG no-load speed/100 (and the output torque is the BAG torque*100), assuming a perfectly efficient gearbox.


If you're thinking of hanging with this, I'd add some sort of braking device to the output.

If you're not attempting to hang, the important part is that second paragraph about the no-load speed.