On Thu, 2013-01-03 at 14:49 +0000, andy pugh wrote: > On 3 January 2013 14:20, Mark Wendt <[email protected]> wrote: > > > Why not turn and bore the adapter, then cut a full length slot in it > > the width of the key. Then just use a key that's "high" enough to fit > > in both the keyway slots? > > I can't convince myself that the load on the key is exactly the same > in that scenario (is it just two separate shear planes, or can the key > rock because the sleeve can rotate?). > I need to check the key sizes too. It may need to be a stepped key. > Given my druthers I'd do it a bit differently. On the lathe machine a stepped adapter; i.e. 1.000 bore, 1.25 OD but stepped to the usual dia of the spacers for an inch or so. Broach the inner slot so it is backed by the integral spacer. Then mill the outer slot and make it a close fit. Use regular spacers on the front part. Mild steel would probably work but "acraloy", i.e. normalized 4140 shafting at Rc 30 would be better.
I hope the above description makes sense. ;-) Good luck. Dave ------------------------------------------------------------------------------ Master Visual Studio, SharePoint, SQL, ASP.NET, C# 2012, HTML5, CSS, MVC, Windows 8 Apps, JavaScript and much more. Keep your skills current with LearnDevNow - 3,200 step-by-step video tutorials by Microsoft MVPs and experts. ON SALE this month only -- learn more at: http://p.sf.net/sfu/learnmore_122712 _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
