Carbon brushes question

[ohiovacuums]

I bought a handheld on ShopGoodwill....I ran it for 3 seconds and was quite noisy.
I started to take it apart and noticed the brushes are pretty much gone. I've never seen brushes like this...they appear to have springs with a copper piece and then the carbon ?? All I have seen are just springs with the carbon attached. I hope the picture shows what I'm talking about.
Can I just replace with carbon ? I don't see why not.
The brush in the lower part of the picture does not go with the vacuum....I just want to show what I'm used to seeing.

 

[hoover300]

Should work, it won't hurt anything if you try it for a couple seconds with new all carbon brushes.

 

[madman]

Can't really tell from the picture. A regular brush without a wire sticking out of it should be fine as long as it fits in the guide properly.