Re: [CAD_CAM_EDM_DRO] Re: Belt vs. Direct Drive

On Fri, 3 Jan 2003, jeffalanp <xylotex@...> wrote:

> Hi Chris,
> I have some "Zinc hub and neoprene sleeve coupling" (rubber
> couplings)and I get a some backlash from them. This will be more
> noticable as the rubber dries out and doesn't fit on the hub as
> nicely as it does when it is new and fresh. I don't think you are
> going to get nearly (if any really) the slop from a nice helical beam
> coupling (it's all one piece). On the other hand, the rubber
> couplings are really cheap!

I'm only curious because I have a few of both kinds. The rubber ones seem
to have just a bit of windup but it would take a fair amount of load on
the screw to make it significant.

C|