Re: [CAD_CAM_EDM_DRO] helical couplings

When I converted my mill some time back, I opted to make my own split hub,disc type flexable couplings out of 7075 Alum, on my mini lathe ,that allowed for a 2 degree shaft misalignment and they are working perfectly to this day.Cost me around $15 in Alum, and about 3 hours worth of my time.It was a great learning experience besides(first real lathe project)
This was done largely because of the unusual sized bores that I needed and I figured since I was going to have to take the chance of messing up some couplings ...better it to be ones that I can make again versus some that cost me a hundred bucks or more to begin with!


alex <telecomt@...> wrote:
Thank you, Marv - these seems to be reasonably priced,
actually.
Alex

----- Original Message -----
From: dcdziner
To:
Sent: Friday, June 13, 2003 1:28 AM
Subject: Re: [CAD_CAM_EDM_DRO] helical couplings


> Alex,
> You might also think about using a "spider" type coupling, instead
of
> the helical. Then you can buy one end of one size, and the second end at
the
> other size. Then the rubber "spider" fits between. You still mave have to
> bore one end to fit. These are available at www.mcmaster.com
>
> Marv Frankel
> Los Angeles
>
> ----- Original Message -----
> From: "Jon Elson"
> To:
> Sent: Thursday, June 12, 2003 9:25 PM
> Subject: Re: [CAD_CAM_EDM_DRO] helical couplings
>
>
> >
> >
> > alex wrote:
> >
> > >Folks,
> > >what is a reasonably priced source for helical couplings?
> > >I'm looking for one with 1/2"ID on one end and 5 mm ID on another end.
> > >
> > >
> > For odd size conversions, you need to buy the closest stock coupling and
> > bore it out to the needed size. You might have to start out with a
> > 1/8 - 1/4" unit or something like that. You might also need to make
> > a bushing to adapt a 1/2" - 1/2" unit, because of the great size
> difference.
> > These are pretty expensive no matter where you get them.
> >
> > Jon
> >
> >
> > Addresses:
> > FAQ: http://www.ktmarketing.com/faq.html
> > FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/
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> >
> > OFF Topic POSTS: General Machining
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> > http://groups.yahoo.com/group/jobshophomeshop I consider this to be a
> sister site to the CCED group, as many of the same members are there, for
OT
> subjects, that are not allowed on the CCED list.
> >
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> > bill
> > List Mom
> > List Owner
> >
> >
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>
> Addresses:
> FAQ: http://www.ktmarketing.com/faq.html
> FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/
> Post Messages: CAD_CAM_EDM_DRO@yahoogroups.com
>
> Subscribe: CAD_CAM_EDM_DRO-subscribe@yahoogroups.com
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> List owner: CAD_CAM_EDM_DRO-owner@yahoogroups.com, wanliker@...,
timg@...
> Moderator: pentam@... indigo_red@... [Moderators]
> URL to this group: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO
>
> OFF Topic POSTS: General Machining
> If you wish to post on unlimited OT subjects goto:
aol://5863:126/rec.crafts.metalworking or go thru Google.com to reach it if
you have trouble.
> http://www.metalworking.com/news_servers.html
>
> http://groups.yahoo.com/group/jobshophomeshop I consider this to be a
sister site to the CCED group, as many of the same members are there, for OT
subjects, that are not allowed on the CCED list.
>
> NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY POSTING THEM.
DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO EXCEPTIONS........
> bill
> List Mom
> List Owner
>
>
>
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
>


Addresses:
FAQ: http://www.ktmarketing.com/faq.html
FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/
Post Messages: CAD_CAM_EDM_DRO@yahoogroups.com

Subscribe: CAD_CAM_EDM_DRO-subscribe@yahoogroups.com
Unsubscribe: CAD_CAM_EDM_DRO-unsubscribe@yahoogroups.com
List owner: CAD_CAM_EDM_DRO-owner@yahoogroups.com, wanliker@..., timg@...
Moderator: pentam@... indigo_red@... [Moderators]
URL to this group: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO

OFF Topic POSTS: General Machining
If you wish to post on unlimited OT subjects goto: aol://5863:126/rec.crafts.metalworking or go thru Google.com to reach it if you have trouble.
http://www.metalworking.com/news_servers.html

http://groups.yahoo.com/group/jobshophomeshop I consider this to be a sister site to the CCED group, as many of the same members are there, for OT subjects, that are not allowed on the CCED list.

NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY POSTING THEM. DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO EXCEPTIONS........
bill
List Mom
List Owner



Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/



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