9A Spindle drawing

I'm sure I have seen a drawing somewhere of a 9A spindle with dimensions , but I have been unable to find it again . any of ya folks know where there might be such drawing ?
tks
animal

I save every such file I have ever run across, and I don't find that one.

What accuracy do you need?

My 9A has a very small step on the spindle where the chuck bottoms out , I was wonderin if that's right for this lathe ? I've been chasin a chatter problem & noticed what looked like a gap between the back of the chuck & the mating surface of the spindle , some folks call this the register. I can get a .008 feeler gage behind the chuck & the spindle but not all the ways down to the diameter of the spindle . does that make sense? I will try to make a drawing tomorrow & post it . my chatter prod only happens while turning steel , I don't remember if what I am using is CR or HRS , but it looks like hell . I can turn aluminum & get a mirror finish all day long . I just did a spindle check & i have .002 in spindle movement . the left side bearing seems to run @ 20 deg warmer than the chuck side , perhaps I have the thrust nut too tight ?I am usin AR Warner HSS cutters & home ground HSS . I tried all 3 speeds plus backgear . my work piece is @ 1.2" dia right now , but gettin close to finished size so I stopped workin on it till I get this figured out
tks
animal

heres a pic of a normal looking spindle..that ring around the bearing is actually a separate part amd just presses on there.
is that what your referring to?

https://www.recycled-parts.com/Curb...dstock-spindle-bull-gear-assembly-photo-2.jpg

yea , that's it . what is its purpose ? I wasn't sure if someone had done some sort of mod to the spindle
tks
animal

its just to help keep chips out of the headstock.

ok so the larger siameter part is the pressed on part & the part that the chuck backs up to is the actual spindle ?
animal

yep..the part the chuck butts up against is actually the end of the bearing...same diameter.

ok , thanks . good to know that a PO didn't hack up the spindle ..
hope to get back to my chatter / finnish issue . will start a new thread for that
animal