Hello,
I’m looking for a couple relatively powerful motors for our NASA RMC project. Here are a few that fit the bill pretty well, but I can’t seem to find the specs I need for modeling the control system (from a mechanical engineer’s approach). Namely, are you able to provide resistance, inductance, torque constant, and rated current for any of these motors?
- robotshop.com/en/12v-75rpm-p … motor.html
- robotshop.com/en/12v-23rpm-4 … coder.html
- robotshop.com/en/12v-118rpm- … coder.html
Thank you,
Adam
Hi Adam,
Since the manufacturer’s did not give this information on their datasheet, we will send a message to them and will get back to you as soon as we have an answer.
Here are a few tips that may help you:
-To estimate the resistance of a DC motor you can divide the rated voltage by the stall current (at the rated voltage)
-The torque constant can be calculated by dividing the stall torque by the voltage.
-The induced voltage constant can be calculated by dividing the voltage by the no-load speed of the motor.
-The rated current is normally a bit over the current at Max efficiency, it depends on a lot of factors. Only the manufacturer can give this information.
Hope this helps, as soon as we have answers we will write them here.
Sincerely,
Thanks for the response.
Can you recommend a similar motor to this VEXrobotics CIM motor? vexrobotics.com/217-2000.html
Looking for a 12V brushed motor (or gearmotor) with >30rpm and >1000oz-in torque at the output shaft. We can’t seem to find much as powerful as the CIM motor claims to be.
