Re: [CAD_CAM_EDM_DRO] drive belt idler

I had the same difficulty on one of my axis drives. I ended up using tensioner pulleys from an automotive shop normally used for
serpentine belts on the front of engines. They come with a bearing already pressed in but the only trick is the ID of the bearing is
an uncommon metric size. I wished to use a standard shoulder bolt to mount the pulleys and finally found an adapter to a common size
bore that worked great. If you go this way I could probably find the part number of the adapter.
Brad

----- Original Message -----
From: "Thomas Powell" <tppjr@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Saturday, October 23, 2004 1:47 PM
Subject: [CAD_CAM_EDM_DRO] drive belt idler


>
> I made the assumption (we all know what happens when one does that) that
> timing belts could be ordered in any length when in actuality there are
> "industry standards" in lengths. Sometimes with a several tooth jump in
> length.
>
> With this assumption I made my mounting bracket for my servo motor. The
> belts available in the adjustment range I have are either too small or too
> long. I can redo the mount but don't particularily want to. I was thinking
> of going with the longer belt and adding an idler pulley to take up the
> slack and help keep the longish belt from possible vibration.
>
> Now the question. I can't seem to find a smallish idler pulley for a HTD
> 15mm belt. I am looking for about a 1.5" dia pulley. Any ideas?
>
> Thanks,
>
> Thomas
>
>
>
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