From: null@void.com   
      
   "Jim Wilkins"  writes:   
      
   > "Jim Wilkins"  wrote in message news:1043b3k$3hded$1@dont-email.me...   
   >   
   > I'm having trouble analyzing to learn from this. What is the load direction   
   > on the inner ring that your weld must resist?   
   > ---------------------------------   
   >   
   > More specifically I assume that if the inner ring bears weight the   
   > upper weld could fail in tension (+shear?) across its throat area. The   
   > lower weld might shear along the column so punch press math could   
   > apply, or to the extent the fit is loose or the column can expand and   
   > the ring shrink the shear could be along a shorter line angled toward   
   > the weld throat. Does that make sense?   
   >   
   > If the load is a mooring line I'd have to know how it's attached.   
   >   
   > I have similar geometry in two recent projects, one a shop-made   
   > stainless solar array thrust bearing with the ring retained in the   
   > tube by a circle of screws, their inner ends turned smooth and loosely   
   > fitting in a groove in the ring. The load on the cap passes through   
   > the races and balls to the ring below, so the outer tube is only   
   > shielding.   
   >   
   > The other is a thick sleeve with an integral ring inside threaded   
   > internally. It adapts this to a non-HF floor jack.   
   > https://www.harborfreight.com/steel-floor-jack-cross-beam-64051.html   
      
   Per previous - leave-alone this line of thought.  It will be designed   
   for "special" load-conditions.   
      
   --- SoupGate-Win32 v1.05   
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