Re: [CAD_CAM_EDM_DRO] Final leadscrew design - thanks to all

In a message dated 10/26/00 2:27:01 PM Hawaiian Standard Time,
r_fl_z@... writes:

<<
I've uploaded a Final Design file detailing, what else, but the final
design.

This one is easily built, requiring only a through hole in the
support plate. The bearing retainer plate and fasteners react the
entire thrust load, clampup is achieved without applying thrust loads
to the bearings, and only one spacer is required for a FIXED
installation (no spacer needed for a RIGID).

Much appreciation to the experts who helped.

Ron >>

Ron,


This one will not work. Realize that nothing should drag or have rubbing
action in your setup. It looks like you are missing the fact that they do not
use standard ball bearings, they use angular contact ball bearings that ARE
designed to take a thrust load. Standard ball bearings will work also but at
a much lower rating or life span. Make your retainer plate on the right side
bear only against the OD ring of the ball bearing. The housing should have a
ring or a lip on the left side to retain the bearings also. Make you retainer
nut bear only against the id ring of the bearings and it will work. Study the
picture in the PDF file again carefully.

Have fun.

Peter
THRD, Inc.