I'm looking for a motor to put in an array of four other motors to be run for a long time, and off of a computer power supply. I'm looking for one that can, for all intents and purposes, go "infinitely" slow, by limiting current with a potentiometer (does such a thing even exist?)
At most, I'd want it to be about 30 rpm. I saw some for sale that rate 30 rpm at 12 volts. If I were to use such a motor (I'll provide the dealer info if asked, I don't know if that's permitted) with a computer power supply (most are in the neighborhood of 19 V), I'm guessing that I could slow it to 30 RPM w/ the potentiometer. I wonder if I could run it at 19 V, or if this would burn it out. Is amperage even a concern if I'm going to use a computer power supply? If so, what parameters would I look at? (I'm an electronics novice). I'd want the motors to be of moderate to high torque, as they'd be used for a grinding application.
Speaking of burning out, the motor must be able to run for hours without a fan, or have an integral fan.
I'm hoping that the motors will be simple (not having many extraneous wires to which I'd have to hook capacitors, etc. to get them to work) and be about $ 25 or less. Thanks.
At most, I'd want it to be about 30 rpm. I saw some for sale that rate 30 rpm at 12 volts. If I were to use such a motor (I'll provide the dealer info if asked, I don't know if that's permitted) with a computer power supply (most are in the neighborhood of 19 V), I'm guessing that I could slow it to 30 RPM w/ the potentiometer. I wonder if I could run it at 19 V, or if this would burn it out. Is amperage even a concern if I'm going to use a computer power supply? If so, what parameters would I look at? (I'm an electronics novice). I'd want the motors to be of moderate to high torque, as they'd be used for a grinding application.
Speaking of burning out, the motor must be able to run for hours without a fan, or have an integral fan.
I'm hoping that the motors will be simple (not having many extraneous wires to which I'd have to hook capacitors, etc. to get them to work) and be about $ 25 or less. Thanks.