There are NMTB 30 spindles made for Bridgeport mills and clones. I have an ACRA made circa 1990 and swapped a Kennametal NMTB 30 quick change spindle into it. It was formerly installed in a genuine Bridgeport and all I had to do was swap the retainer below the bottom bearing since the ACRA used left hand thread. Everything else fit perfectly.
On Wednesday, November 9, 2022 at 06:36:48 PM MST, andy pugh <bodge...@gmail.com> wrote: On Thu, 10 Nov 2022 at 01:03, John Dammeyer <jo...@autoartisans.com> wrote: I think it was on this forum that the discussion came up on the holding > power of R8 collets and how they were essentially only useful for light > machining. Bridgeport machines were (are?) all R8 for decades and I don't think that anyone considers them toys, _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
