Encoded vs. Not

So I have the RM-ESMO-074 36D DC Planetary Gearmotor w/encoder - 12V 115RPM motors. I need comparable replacement with the same bolt pattern. I am trying to reduce the track width of a prototype robot I am building. Using a controller, just need forward, back, and turn functions. Need low rpm high torque motors with minimal space requirements. 6mm shaft for industrial use.

Hello @chadwalker72 and welcome to the forum,

These are the closest models to the one you mentioned:

And these are close but have a slightly different bolt pattern:

Regards