I have a Cincinnati contourmaster converted from tracer to cnc. I had
the spindle rebuilt 10-15 years ago. It lasted about 3 weeks before
it developed axial play. I tore it down and winged it in setting the
preload. It was not going back to the guy in Portland that screwed it up!
Now it is screaming at me. Quiet with no load but really bad under load.
Muffs are required!
https://www.youtube.com/watch?v=e-mXmfieJTQ
So: any recommendations for bearing arrangement? I'm thinking of two
angular contact pairs forward and a double roller at the rear.
It seems to be a good compromise between stiffness and speed. Lately
I've been doing a lot of milling with 1/4" coated carbide at
3450 rpm. The tool holder is a truncated taper of CAT 40 size but held
on by a big nut.
Ideas, suggestions, WAG's, SWAG's...
Thanks in advance.
Dave
------------------------------------------------------------------------------
Check out the vibrant tech community on one of the world's most
engaging tech sites, Slashdot.org! http://sdm.link/slashdot
_______________________________________________
Emc-users mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/emc-users
