Re: [CAD_CAM_EDM_DRO] re:Re: leadscrew bearings / machine design(2nd gif dwg)

Sorry to disagree with learned wizards, but, though very, very stupid and
very, very, very ugly, I had been there, done that, and the most-rigid and
"bestest" way to do the ends of a lead-screw are to have two SEPARATE
angular-contact bearings on EACH end (total, four per screw!), each pair set
at least twice the screw-major-diameter apart (between them), or, at least
twice major screw-dia. plus one bearing-thickness "on-center". Really! Just
havin a pair of bearings with "no" space between them (oh, maybe just a
spacer between the two inner-races) is no-where NEAR the same as the
"spaced-apart" pair! Unless you are talking a total screw-length no more
than, say, ten times the major-dia.!