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Spindle Bearing Test SB 10L heavy

jetpilot67

Plastic
Joined
Sep 5, 2017
Lots of noob questions for you guys...so here's another one. When testing the spindle bearing on my SB 10L heavy, should the bearings be clean and free of oil or lubricated just as they would be when the lathe is used. The H-4 manual does not specify and it seems like a thin layer of oil would change the reading if by only one or two thousands, so do the .001 to .002 GTG readings include oil or no?

Thanks!
 
The point of pushing down first it to "bottom out" and then when you pull up you get total clearance.

you may not see much movement on the push down if the spindle has been at rest.
 








 
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