[modeleng] Re: Boring Bearings
- From: "Terry Lane" <tel@xxxxxxxxxxx>
- To: <modeleng@xxxxxxxxxxxxx>
- Date: Sat, 10 Sep 2005 19:12:16 +1000
By far the easiest method would be to through bore it & insert a bush-like
spacer (with nicely squared ends) in the middle of the bore. A light push
fit with a few loctite grooves should do the trick
Tel
> Dear Alan
>
> Thanks for this helpful message. I agree that this would be a splendid
> way of assuring alignment and the identical size of the two bores.
> I am probably being being very stupid, but my problem is how to ensure
> accurately squared shoulders, thus creating the abutment for the outer
races
> of the bearings. This can be done with a boring head, which can produce
a
> facing cut. A facing cut is not available when using a boring bar
between
> centres.
>
> Cheers! Hubert
>
> > From: "alan Stepney" <alan@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx>
> > Subject: [modeleng] Re: Boring Bearings
> > Date: Fri, 9 Sep 2005 22:13:43 +0100
> >
> > I have only quickly read the original message so may not be totally
clear
> > on
> > what is required.
> >
> > However, if possible, I would try to bore both bearings at the same
> > setting,
> > by bolting the headstock down, to the cross slide , and then use a
between
> > centres boring bar.
> > Even if you had to jury-rig a frame to support it, (perhaps OVER the top
> > of
> > the boring bar) and that support meant taking very light cuts, at least
> > one
> > could be assured that they would both be to the same setting.
> >
> > Alan Stepney
> >
> > http://www.alanstepney.info
> > Model Engineering & steam engine information pages
>
>
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