Arbors and Bushings

[mjhall]

For those of you that use metal arbors, and bushings in you clocks I have a couple questions.
     
     1.  do you use steel arbors, and brass bushings? 
     2.  do you use "hobby shop" brass tubing for the bushings?
     3. If you use steel arbors, what is your source for the materials?  How do you
        size the diameter of the arbor to be appropriate for the loads--so it won't bend?
 
I noticed in the Bearings forum it was suggested that friction is minimized by using dissimilar metals together
i.e. steel on brass.

Any info appreciated.

Mike

[bobbytbird]

Mike,
Yes, I use stainless steel abors and brass bushings with both supplied by a local hobby shop. I have never really had to give consideration to the strength of the arbor dropping with length given use of stainless steel and maximum lengths of just a few inches. This might be an issue if I was to use arbors smaller than 1/8" which has been my minimum to date.

[mjhall]

Thanks for the reply

Mike