[modeleng] Boring Bearings
- From: "shep" <shep.28@xxxxxxxxxxxx>
- To: "Modeleng" <modeleng@xxxxxxxxxxxxx>
- Date: Sat, 10 Sep 2005 10:05:38 +0100
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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