I have a question about tolerances
I am designing a CNC machine but I am not sure what tolerances to use
for example
I have a linear bearing with an exterior dimension of 28mm +0 - 0.013
Will this fit in a piece with a hole of 28 mm -0 ?
Or do I need to make the just a little over 28mm and if so how much bigger ?

Basically I would like a good fit
Not to loose and not to tight

any help

Michel