Hello.
Many of the parameters you are interested in can be derived from the performance curves in our 25D gearmotor datasheet, which is available on the product page under the “Resources” tab.
Here is a link to a forum post I wrote which outlines how to can do that.
Please note, unlike the motor discussed in that forum post, the inductance of our 12V high-power 25D motors is about 1.4mH.
For moment of inertia calculations, the output shaft on our 25D gearmotors is stainless steel.
- Patrick