Need 18V 1.5 amp motor having 200-400 maximimum RPM 1

[acesareking]

I need an 18V 1.5 Ah 27 Wh motor having 200-400 maximimum RPM with no gearing.
I can't find one to buy so is it possible to make one?
How would I make one?

 

[acesareking]

Thank you Bill West, I get it now and I'm grateful for your explanation.

I'm sold on the geared motor.

Thanks to the rest of you who tried to educate me too.