Vladymere gr
Hot Rolled
- Joined
- Dec 10, 2008
- Location
- Charlotte, NC
I am a home hobbyist with a Cincinnati Tray Top lathe that I bought from my employer. Please don't refer me to the home hobbyist machinist site.
When I am cutting as I get closer to the chuck I will start getting a spiral in the cutting.
I have .003" of run out on the tip of the spindle when measured on exterior or interior of the L00 cone. I have a short video attached showing this runout. The video was made with the indicator tip contacting the end of the interior of the spindle. At the very end of the video I have the indicator on the end of the spindle exterior and I am lifting the spindle with a piece of plastic electrical conduit on the inside of the spindle.
I have tried tightening the headstock spindle bearings thinking that pulling the final spindle conical bearing in tighter to the races, I.E.-removing any play, might correct the issue. It did not correct the problem and if anything I now have the bearings to tight. The video was made with the bearings tightened.
As my title says, what is wrong with my spindle on my Cincinnati Tray Top lathe? Is it bent? Could this be a problem with the spindle nose bearing?
Gentlemen I seek your advice.
Vlad
Sorry Fellow, I am unable to attache the video. Sorry to have wasted your time.
When I am cutting as I get closer to the chuck I will start getting a spiral in the cutting.
I have .003" of run out on the tip of the spindle when measured on exterior or interior of the L00 cone. I have a short video attached showing this runout. The video was made with the indicator tip contacting the end of the interior of the spindle. At the very end of the video I have the indicator on the end of the spindle exterior and I am lifting the spindle with a piece of plastic electrical conduit on the inside of the spindle.
I have tried tightening the headstock spindle bearings thinking that pulling the final spindle conical bearing in tighter to the races, I.E.-removing any play, might correct the issue. It did not correct the problem and if anything I now have the bearings to tight. The video was made with the bearings tightened.
As my title says, what is wrong with my spindle on my Cincinnati Tray Top lathe? Is it bent? Could this be a problem with the spindle nose bearing?
Gentlemen I seek your advice.
Vlad
Sorry Fellow, I am unable to attache the video. Sorry to have wasted your time.