Motor 4840 parameters (Inductance L)

Support Motor controllers/drivers and motors
1

Hello I am trying to find some technical parameters for the motor 4840 (no gearbox) Pololu - HP 12V Motor with 48 CPR Encoder for 25D mm Metal Gearmotors (No Gearbox)
I already found a way to define most of them using other topic on the forum such as Calculating motor parameters?

I am missing the Inductance (L) of the motor which is not calculated but always given.
Also I understood the max efficiency data and performance graphs were not available for motors that doesn’t have a gearbox, can someone confirm it?

Thank you in advance for this information.

2

Hello.

The inductance for the 12V High-Power (HP) 25D mm Gearmotors is around 1.4mH when measured with an inductance meter across the motor terminals.

We do not have max efficiency data or performance graphs for the motor without the gearbox (item #4840). Please keep in mind that the motor comes with a non-removable pinion gear installed that works with all of our 25D mm gearmotor gearboxes and is primarily intended to function as a replacement motor and encoder for our gearmotors.

- Patrick

1 Like
3

Hello Patrick,

Thank you for your quick answer. I intend to use this motor with a designed mechanism at the output instead of a gearbox but I will stay aware that this was not the original purpose of this product.

Thank you