Both 10"
brakes and 7"
brakes with a 5 on 4.5 bolt pattern will accept all common sized trailer wheels of the same pattern.
The 7" brake hub was developed to accommodate 8" wheels such as those found on snowmobile trailers, that is why the lighter axles on many 13ft
fiberglass trailers have 7" brakes even though they are commonly supplied with the same 13" wheels as their larger siblings which have 10" brakes.
13,14, and 15" trailer wheels all have adequate clearance to fit over 10" brakes which are commonly supplied on 3500# axles.