Re: drive belt idler

Why don't you machine a pulley to ride on the back side of the
belt. Maybe you can get away with only a bearing.

Brian

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "Thomas Powell" <tppjr@h...>
wrote:

> 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