Re: SRSG - rotor attachment

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "Scott Hanson" <huil888@xxxxxxxxxxxx>

David -

OK, now we are starting to get a true picture of your setup.

But, since it looks like you are not using the split taper bushing as 
it was designed to be used (radially compressed to grip the motor 
shaft), there is really nothing except set screw pressure holding the 
whole bushing and RSG disk onto the motor shaft. Also, as you tighten 
the set screws, doesn't the "split" in the bushing open up, reducing 
the amount of contact area between the bushing and the motor shaft? 
It looks like the only thing holding everything together is the set 
screws pushing the shaft key against the motor shaft on one side, and 
the motor shaft contacting part of the bushing bore opposite the 
shaft key. If this is the case, a power transmission Engineer would 
probably call it an extremely risky and unconventional setup, even if 
it has worked for you.

Regards,
Scott Hanson


----- Original Message ----- From: "Tesla list" <tesla@xxxxxxxxxx>
To: <tesla@xxxxxxxxxx>
Sent: Sunday, May 14, 2006 12:54 PM
Subject: Re: SRSG - rotor attachment


> Original poster: "David Rieben" <drieben@xxxxxxxxxxxxxxx>
>
> Bart,
>
> Ok, I see what y'all are after, now ;^) There are 2
> setscrews and 2 tapped holes for the setscrews in the hub
> lined up over the shaft key and keyway. I believe that I had to 
> drill and tapp the screw holes for the setscrews in
> the hub myself. I had almost forgotten about that particular
> detail of the construction of the RSG. Also, I had to purchase
> the little key for the motor shaft, as I don't recall the motor
> coming with a key for the shaft keyway.
>
> David Rieben
>
>
> ----- Original Message ----- From: "Tesla list" <tesla@xxxxxxxxxx>
> To: <tesla@xxxxxxxxxx>
> Sent: Sunday, May 14, 2006 1:45 PM
> Subject: Re: SRSG - rotor attachment
>
>
> > Original poster: "Barton B. Anderson" <bartb@xxxxxxxxxxxxxxxx>
> > Hi David,
> > Curious, we understand how the disc attaches to the hub.
> > How does the hub attach to the shaft?
> > Most taper bushing require an external part which the hub presses 
> > into. Thus, as the hub presses into the external part, the shaft to 
> > hub engages. But, the external part is not seen in the photos. How 
> > did you manage to press the hub onto the shaft? I can envision many 
> > methods, but I'm more curious of your solution.
> > Take care,
> > Bart
> > Tesla list wrote:
> >
> > > Original poster: DRIEBEN@xxxxxxxxxxxxxxx
> > > Scott,
> > >
> > > The only picture that I have off hand is
> > > the 8th picture down on my webpage at:
> > > http://www.dawntreader.net/hvgroup/david/gm
> > > As you can see in the picture, the 3 bolts
> > > fa

msnip...

> > > msnip