[Spridgets] Tapered roller bearings

[David Lieb]

> Thanks.  I think if it were A-arm bushings, it would not go away when I
> tighten up the bearing.  One "castle" is really quite a lot in
> thousandths of an inch, I believe. Although I'm no machinist, so numbers
> like that don't translate very well into "feel" for me.
> The fine adjustment is done with shims but I don't know where to get
> them or where to put them.

Measure (accurately) the distance from one thread to the next (or calculate 
it from the threads per inch) and divide by six to equal the movement of one 
"castle". As Duncan says, Mcmaster.com has shims.
David Lieb