Originally Posted by cheenyc
Iv been told as long as the wheel bolts are tapered that it will be fine with a larger hole over the hub ? Like on an old VW.
The area under the head (not the threads) of the bolt is normally conical or tapered, just like a normal nut, to match the seat area of the wheel. The shape forces the hole in the wheel to be centered on the stud/bolt (without depending on the centre hole to match), and that's the basis of bolt-centric wheel fastening.
On the other hand, even hub-centric wheels normally use conical nut/bolt seats (although not always -Toyota alloy wheels typically don't). Conical seats are necessary for a bolt-centric setup, but they don't necessarily mean that the hub and wheel are intended to be used without hub centering.
Will bolt-centering be fine even though hub-centering was intended? With conical seats, it will work... but will it work well enough?
My guess is that hub-centering of wheels that use bolts isn't to make the wheel fastening stronger or more precisely centred; instead, I think it's just to make it easier to install the wheel
. With a hub having studs, you can just "hang" the wheel on the studs while you start the nuts. With bolts, there's nothing to hold the wheel in place while you get the bolts lined up and started into the threaded holes... unless the wheel fits closely on the hub. If this is the only
reason for hub centering of these wheels, then it's just a convenience issue.