Re: [CAD_CAM_EDM_DRO] Re: Souces of Timing/Drive Pulleys

Ballendo: Actually, I went to the files and found a setup for a rf45 and there it was. Fenner makes them and they are in the MSC
catalog. They are about $30 a pop for that size but they are fantastic. It is a double collet arrangement. One collet grabs the
shaft and the other spreads into the bore of the pulley. Back the nut off and it self releases. They work great on a Bridgeport
conversion. No keyways need to be milled in the shafts.Check it out, It is in Peter" file I believe the last picture. Carey

ballendo@... wrote:

> Carey,
>
> Sounds like the "trantorque" type. very good. Hi-dollar.
>
> Ballendo
>
> --- In CAD_CAM_EDM_DRO@y..., "Carey L. Culpepper" <culpeppe@b...>
> wrote:
> > Chris,Ballendo: I have some NEMA 42 stepper motors that have a
> collet type arrangement to fasten the pulley to the shaft. The motor
> > shafts are .625" and the pulley is straight bored to 1.000" . I
> pulled a pulley off of one of my motors to see if there there were
> > any numbers or identification on them. There was none. They do work
> very well and are very easy to move on the shaft. You slide the
> > pulley on the shaft to where you want it and tighten a 7/8" nut and
> everything is locked tight with no slippage. I don't have a clue
> > who makes them ,but I could post some pictures somewhere if any one
> is interested in identifying them. Just let me know and I will
> > make the time to do that. Carey
>
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