Impeller (mini turbo) (8mm shaft circular hole)

Impeller to compress air and because it looks cool. I use a rev neo motor. You can use any motor with a 8mm shaft. 

This is a model of an impeller to compress air. If you want the housing to encase the impeller it is on my page. You would need a motor with an 8 mm shaft and a ball barring for maximum efficiency. The size of the barring is an 8mm hole with a diameter of 14mm. It is a little fragile be careful.