Dear Baffled, Most mfg. do what is cheapest - just like auto mfg. They don't worry about them lasting more than 2 years.
NWSL makes different series. Some are beefy. Hobbytown is good too. I use them also. I wouldn't think you could tighten a set screw sufficiently in a plastic collar. I guess it's because the collar is fat enough; you have many rounds of thread. Arden --- In [email protected], "Ed" <Loizeaux@...> wrote: > > Personally, I like the Hobbytown U-joints because the nylon cup is thick and > tough. > > On one loco, I drilled and tapped a hole in the side of the cup and inserted > a set screw. The set screw snugged up against a flat on the metal shaft. > Then a slightly larger hole was drilled so that the cup could slip onto the > shaft with a very minimal press fit -- not quite a slip fit, but close. End > result: no slippage and no stress on the plastic and no cracks. Works > great. > > After all these years, I am still amazed that loco makers still press fit > plastic parts onto metal parts and expect them to last. Most give out after > several years which should not be a surprise to anyone. Why is it so > difficult to learn from past mistakes and make improvements? I am baffled. > > Ed L. > www.sscale.org > ------------------------------------ Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/S-Scale/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/S-Scale/join (Yahoo! ID required) <*> To change settings via email: [email protected] [email protected] <*> To unsubscribe from this group, send an email to: [email protected] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
