On Thu, 18 Jan 1996, W. R. Gibbons wrote:
> On Thu, 18 Jan 1996, Milo V. Kral wrote:
>
> > 4) machine out a hole in the new wheel slightly smaller than 1.5" (can't
>remember how small, but it can be calculated if you know the thermal
>coeefficent of expansion for aluminum: see #5-7)
> > 5) place the splined sleeve in liquid nitrogen
> > 6) after the sleeve reaches -196C, place it (using tongs and hammer of
>course) in the new wheel hub.
> > 7) make sure it's positioned correctly because as it warms up, you'll
>have a press fit like you wouldn't believe.
>
> Well, I'd think you would not want to make the hole more than a
> thousandth or so smaller than the sleeve, or you'd have yourself a split
> hub when it warms up.
>
Go to the library and get a machinist handbook.... it will tell you
(based on the diameter of the shaft) what the diametral interference
should be.
The only info I have from this book is for 4.73"-5.52" shafts, and the
diametral interference is 3.6 - 6.0 (in thousandth of an inch)
Eric
Eric L. Van Iderstine - ME senior - Mississippi State University
Design Coordinator - MSU Formula SAE......Powered by Honda......
elv1@Ra.MsState.Edu http://www2.msstate.edu/~elv1
74 MGB - 85 Buick LaSabre - 95 DiamondBack Sorrento
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