Re: Souces of Timing/Drive Pulleys

--- In CAD_CAM_EDM_DRO@y..., Mike Gann <mikegann@p...> wrote:

> Tim and Hugh -
>
> Thanks for the reply's. I will probably go ahead with
> the XL pulleys' and bore out the hubs. I am also going to
> look at the taper-loc hub to see if these would work
> with these somewhat small pulleys. Just seems like it
> would be better than a couple of set screws.
>
> Thanks again
>

Mike
I don't know what the situation is in the US but in the UK if you go
to a bearing stockist and specify what bore you want they'll have it
machined for you. I know this because that's what part of my work is,
doing sprockets and pulleys for three local suppliers.
With your small pulley you probably won't have a choice because of
the size and it will be classed as parent bore. The larger pulley
again depending on size may be available in taper lock form already
machined.
If you want to bore them yourself it's quite easy. Prise one of the
shields off and grip on the outside then bore out to size. Never be
tempted to drill as a drill is the most inaccurate tool ever invented
and wil take the path of least resistance. By all means drill and
finish bore but even drilling and reaming will not guarantee a true
bore.

John Stevenson.