Metal Gear Motor with Solarbotics RW2i Wheel

My workgroup are thinking in using Solarbotics RW2i wheel (internal set screw) with a Micro Metal Gearmotor, but we’re not sure if they fit.
We can read in wheel’s specification that “The aluminum hub is drilled for an 3 mm axle” but the motor has a 3 mm-diameter D-shaped output shaft.

Could you tell me if this wheel has a ‘D’ shape so it fits with the motor?


The RW2i wheel works with our micro metal gearmotors. The wheel has a circular hole, but it has a set screw that you can tighten against the flat face of the motor’s shaft.

- Ben

Ok, thank you for such a fast reply!