Wow, it is certainly a complicated subject then !
I thought it might have been lot simpler than that, boy was I being a bit optimistic, to say the least.
I did feel a little like I was being a little lazy, so did a minute of random keyword youtubing before posting.
I'm glad I hadn't trawled through many videos, as it would have been a pointless endeavour for the kind of thing I was looking to find.
I have a wee three wheeled bandsaw, that I was thinking of making into a strip sander, but the thing is soo loud, that makes me not want to bother with, plus I don't really like sanders,
as I have no dust collection in the workshop.
I try and find a way of cutting things, as a workshop rule, rather than abrade them.
I was thinking that the brushes could be worn on this thing, due to the noise,
Never checked them though.
I must have a look at them sometime, to see if,
A: If they're the correct fit,
B: if they're worn down,
and C: if the springs and the copper braid are equal.
Thanks Bob, for another motor learning experience