I'm waiting on a 5v worm gear motor at .5 rpm, and a 24v work gear motor at 1 rpm. I need .5 rpm, and I'm wondering which would have more driving force. The .5 rpm at 5v, or the 24v 1rpm pwm'ed done to 12v .5rpm?
It looks to me like they are just different voltage variants of the same motor. My guess is that the torque will be pretty much the same but the 5v motor will need a lot more amps (at 5v) than the 24v motor will need (at 24v).
If the supplier does not have any info about motor torque then I think the only way to know is to buy one of each and compare them.
...R
Motor shaft torque increases directly with motor current.
You've bought two motors without any torque specifications. That means you don't know how much
torque they can handle. For large factors of reduction gearing the gears themselves are usually
the torque-limiting factor, so the voltage and current ratings are probably immaterial here.
Put another way it is likely they can be run(*) at significantly above their rated torque, but that the gears
will then wear out rapidly, or even be chipped and fail.
(*) Apparently successfully
I wouldn't trust a gearmotor without an output torque specification, it could be any old junk designed for
a few tens of hours life with mild steel stamped gears... The word "high" by itself is not a specification
(no motor ever sold has been described as "low torque" I suspect!)