I have 3 of these motors sitting around from an autosteer project and want to use it to power a grain mill. I would like to be able to get the most torque from this motor while speed is of little consequence. Am I correct to assume that direct connection to an adequate power soure would run the motor at its upper potential? Forgive the ignorance, as I am very new at this and arrive uneducated and at an elevated age. I was a mechanic for decades, not literate in electronics. TIA!
Yes, connecting a DC motor directly to a power supply within it's rated voltage range will cause it to spin at full power.
If the 3269_3 does not have enough torque and speed is not an issue, you may want to increase the gear ratio of your system by using a motor with a larger gearbox or by adding external gearing via a worm gearbox or chains and sprockets or belts and pulleys.