RE: [CAD_CAM_EDM_DRO] Motor Couplers

These split couplings are the best for 0 backlash and constant displacement
regardless of axial position. Check out the stock drive catalog #
S50MSC-A04H25H25

You could manufacture something similar yourself with a rotary table and
slitting saw.

John Dammeyer


Wireless CAN with the CANRF module now available.
http://www.autoartisans.com/products
Automation Artisans Inc.
Ph. 1 250 544 4950

> -----Original Message-----
> From: Tony Jeffree [mailto:tony@...]
> Sent: Friday, January 07, 2005 9:05 AM
> To: CAD_CAM_EDM_DRO@yahoogroups.com
> Subject: Re: [CAD_CAM_EDM_DRO] Motor Couplers
>
>
>
> At 09:18 07/01/2005, you wrote:
>
>
> >Hi,
> >
> >My home converted mill uses belt drives to connect the motors to the
> >ballscrews. I am trying to motorise a dividing head by
> directly coupling the
> >motor to the wormshaft. So far my home made attempts have
> all suffered from
> >alignment problems. What I want is a coupler that allows for some
> >misalignment of the two shafts and has no (well minimal)
> backlash.What do
> >people use? If homemade what is the design? If not homemade
> what type of
> >commercial couplers work well in this application.
>
> I use Oldham couplings - see:
>
> http://rswww.com
>
> and search on "Oldham" to get an idea what they look like.
> The coupling
> consists of 2 hubs coupled via a plastic torque disc. Should
> be able to
> source similar items in the USA too.
>
> Not too hard to make your own, but a little care needed
> machining the slots
> in the disc if you are to avoid backlash.
>
>
> Regards,
> Tony
>
>
>
>
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