Originally Posted by
SurferRosa
Why? what's it hurt? Does it not properly support the cone? (I'm asking; I don't know the answer.)
Looking at the pics of the axle it seems there are three different diameters - the 10mm thread, then a smooth diameter larger then the thread where the bearing sits, then another diameter smaller then the bearing diameter with a rougher finish that's cut the majority of the axle length.
A micrometer would be handy at this point. I'd say it's important to have a snug fit on the bearing ID.