We have some 4" round we used for pins in the Tappan Zee bridge, wanna try 
that?  You can bend anything, and as discussed, the more rigid or less springy, 
the more likely it will bend!!!  The other issue is that the axle also acts as 
a spring.  Once the 1" puck bottoms out, the other pieces, pull rods, shock 
attaching points and axle flex. So the more rigid the axle, the more likely 
something else will bend or break...  It's a viscous cycle!!!
   
  CR

John Vriesinga <[EMAIL PROTECTED]> wrote:
  > Do you know what alloy the machinist is planning to use for
> your axle?

They told me only that they were using "Superior Shaft." It sounded to me 
like some brand name product that "machine shop" people know about. All the 
guys that were involved in the discussion agreed that that is what I needed. 
Whatever it is, I know for certain it isn't cold rolled steel, and that it 
is a better product, because they seemed pretty certain that I wouldn't bend 
it. Maybe I'll surprise them. 8-)

JV 


 
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