In article , Ned Simmons
says...

You'll have to ask the bearing mfr for a definitive answer
on the spacer thickness, but I wouldn't recommend this
approach. A few tenths will make a big difference in the
preload, possibly resulting in overheating or loss of
rigidity, depending on whether the shim is too thick or too
thin.

Agree. When I was doing this with non-setup bearings
I was taking a tenth off the spacers at the end while
doing trials.

Jim


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