Re: best type of hub for pulleyts (DONT USE A KEY)

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "volitan712003"
<volitan@o...> wrote:

>
> --- In CAD_CAM_EDM_DRO@yahoogroups.com, "turbulatordude"
> <dave_mucha@y...> wrote:
> >
>
> > I'm planning on using 3/8 and 1/2" shafts and would not have a
> > problem it I needed to ream the bores to fit.
> >
> > I will use drill rod for the shafting and that can be off as much

as

> > you mentioned.
> >
> > I wouldn't be uspset if I had to make my own Browning type

bushing (

> > I think tha is the name) with a taper on the ID to lock in the
> > bushing and shaft.
> >
> > Dave
>
> Dave -
>
> Reaming won't help you with runout. I think they are talking about

the

> ID not being in the same location as the OD. In which case you

would

> want an undersize bore that you can bore to the size, and location
> that you want. You can't ream an undersized hole to the correct
> location. You can however, use a good solid boring bar and locate

the

> hole correctly as you are boring it to size.
>
> Just a heads up, sorry if I misunderstood you.
>
> David

You're correct. I meant that if I need a 1/2" bore, that I would get
3/8, bore the ID on the lathe and then ream to size. Or, bore to
size.

As Jon mentioned, putting a pulley in the lathe can be as simple as
locating the teeth on the lathe jaws to get as close to true as
possible.

In my case, I am using 20 teeth and 60 teeth, so if I need o use
Jon's idea of taking a larger piece of metal and turning the OD and
ID to get a collar, I could use that to hold the pulley and then bore
it.

I have taken all plastic and cut out the bore, leaving enough of the
plastic web for a screw, and made my own hubs. If's one of those
things where you can save $1.50 by an hour or so of labor. Not bad
considdering how many of us work for pennies.....

Dave