end float?

Started by Grizzly, September 07, 2006, 06:46:40 PM

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cjr

they prob do do it for a reason. but for me if i have movement and i am happy that is more than enough for me. I suspect a lot off other people work this way
A small turbo

Grizzly

Fair enough, but i still want to put the next size spacer in becouse i think To tight may cause issues with Oiling the bearings. But i can see your Point if its not broke why fix it?

stuart wizy

micron clock is a dti that will read in micron .01mm increments for a more acurate reading, rather than using a though clock .001".
the target is .0018"  ( 1 though and 8 tengnths) which is a pretty tight tolerance if u ask me.
Im not trying to be a smart arse here boys but my trade is a machine tool fitter, in which we set a lot of end float up on all sorts of ball screws shafts gears etc to tolerances a lot higher than .0018", im just trying to help grizly out cause he wants it done to the book.

Grizzly

LOL, What have i started.

Mr Wizy, I\'m going to sound like a muppet here but i\'ve been given a C spacer which has taken my Endfloat to .0042 i relise the more i remove the more unsquare it is going to become, Is .002 alot to remove whilst keeping it useable? I am fairly handy with this sort of thing but oviously not an Engineer? It doesn\'t look alot on the DTI but i have been wrong before ;)

stuart wizy

0.0042"  is (4 though and 2 tengths) and your ideal target is .0018" (1 though and 2 tengths) so u need to get your spacer thickness measured as it is now, then take .0024" of your spacer thickness dimension, this will give u a size to make the spacer to.
eg..   if you measure your spacer and its  1" thick then Its required size would be 0.9976" to get your .0018" end float.
this stuff comes second nature to me cause ive done it for years but it did take me a bit to get my head round at first.
most surface grinders will grind to a tength of a though so u can get it bang on mate.