On Thu, Dec 13, 2012 at 5:11 PM, andy pugh <[email protected]> wrote:
> > The first idea is: > > https://picasaweb.google.com/lh/photo/EqgIdXH-kCH8I90oYKfm2dMTjNZETYmyPJy0liipFm0?feat=directlink > This actually uses a car wheel bearing, which is angular-contact and > has adjustable preload. > The preload is adjusted by the orange threaded collar. > The collar squeezes the inner race, so it presumably is split, with a gap between the front and rear race, not reflected in the drawing, right? Otherwise, I don't see how you'd preload it. As to the outer race, I agree that transfering the torque through cog wheel/housing thread is iffy. Perhaps use a split housing that has thick enough bosses in front of and behind the bearing outer race, so that you can bolt the cog wheel and ballnut to them, and another pair of mating bosses on top of the bearing, so that you can bolt the two halves together; the last two mating bosses would be right behind of the cog wheel, because it looks like their outside diameter could be larger than the cog wheel diameter. ------------------------------------------------------------------------------ LogMeIn Rescue: Anywhere, Anytime Remote support for IT. Free Trial Remotely access PCs and mobile devices and provide instant support Improve your efficiency, and focus on delivering more value-add services Discover what IT Professionals Know. Rescue delivers http://p.sf.net/sfu/logmein_12329d2d _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
