Re: [CAD_CAM_EDM_DRO] Ball-screws

Jon,

Can't follow the ASCII art. How about a .GIF?

Alan

Jon Elson wrote:

>
> James Owens wrote:
>
> > Hi Jon,
> >
> > I have a tool and cutter grinder, which I use mainly as a 12" surface
> > grinder, and a tool-post grinder. Is there any reason why I must use
> > angular
> > contact bearings. Can't they be Timken taper rollers.
>
> Yes, Timken-type bearings would also work, they are just often more
> expensive
> and larger.
>
> > I don't quite understand your description of how the bearing block
> > should be
> > designed and what about the other end? If one end of the ball-screw is
> > fixed
> > with no axial movement should not the other end be just a plain
> > bearing or
> > ball-race.
>
> Right, just a simple, single-row ball bearing to keep the free end from
> flailing
> around.
>
> Here's some ascii art for the bearing block :
>
> | |
> | |
> ------ --------
> | |
> -----
>
> ____
> | |
> ------ --------
> | |
> | |
>
> This shows the cross section view, with the lip for the outer
> races to press against.
>