CAD CAM EDM DRO - Yahoo Group Archive

Cinci Ballscrews - part II

Posted by Brad Heuver
on 1999-11-10 11:33:47 UTC
I've been looking more at the B'port conversion. Jon, thanks for the
input, most of my questions to date have been answered. Upon looking at
the clearance between the X-axis screw and the bottom of the table
casting, it appears that there is not the required 1.5+ inches I need to
package the nuts as is. Its close, so maybe a more careful meaurement
will show that all is well... More info on the nuts: The 8 holes are
axial, and held 1/4" bolts, axially mounting the nut to the mounting
block. The nut itself appears to be at least 5 pieces. On either end,
there are small (3/16" cap diameter) cap screws axially placed, that
seem to hold either the nut ends or a seal block in place. The larger,
center section, with the mounting holes, has two roll pins through it
axially, in between two of the bolt holes. There are no other visible
fasteners. So the 5 pieces are the two ends, and the pieces that make up
the center, in a sandwich. The center section, is about 1 1/2" long
axially, and in the middle piece, two of the bolt holes are broken
through to the outside. It appears this was to let excess grease exit
the assy, around the bolt shank in a radial direction. If I needed to, I
could probably machine part of this center section away, as it appears
to only be a mounting flange, the entrance to the interior, the grease
exit, would allow chips to possibly enter the assy, however, and would
require some extra care. If this is just a housing, and the real nut is
inside, it would help out the mounting...
As an aside, I've got the X-axis screw out of the B'port, and will
either slide the table out of the way, or remove it to better evaluate,
and measure the packaging of the nuts as is. Thanks for the info so far!

Brad Heuver
Mechanical Sub-Systems fax 734-523-6052
734-52-33480 bheuver@...

Discussion Thread

Brad Heuver 1999-11-10 11:33:47 UTC Cinci Ballscrews - part II Jon Elson 1999-11-10 23:15:26 UTC Re: Cinci Ballscrews - part II