Re: best type of hub for pulleyts

Dave, I been that route and have made my own XL pulleys, for sake
of arguement, I usaed plastic, and hubs come loose and there goes
your project, or someone elses work, that you have scrapped. I use
set screws,and made my own hubs, with a piece of brazing rod cut
short to be inserted in the hole before the set screw goes in, no
marring and a good strong hold, however they are just set screws in
aluminum. Those you descride I could'nt afford, and have 11 pcs,20
Teeth and 5 pcs 40 teeth, just a bolt circle,a drill bit, and a mini
mill, CNC'd ,HTH.


--- In CAD_CAM_EDM_DRO@yahoogroups.com, "turbulatordude"
<dave_mucha@y...> wrote:

>
> Hi all,
>
> looking for a XL pulley and it seems they come with a standard bore
> that uses set screws, or a type called a Fairloc which looks like

an

> angled clamp with a screw that clamps on the shaft.
>
> I'm not sure if the forces are too high or if these styles are fine.
>
> I am hoping that I can get a secure clamping action and not dig the
> shaft like set screws. I could file a flat if that would work.

but

> cannot do a keyway.
>
> I am not sure how much pressure the plastic pulleys can handle with
> the pressed in hub.
>
> Any comments ?
>
> Dave