Gallery, Projects and General > How do I??

rounding off pitted 2" bearings

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hanermo:
A flap wheel will polish them fast .. you need high sfpm.
Glue them to a fixture, rotating via something.
A lathe (covered), battery drill, etc.

Against the flap wheel rotation.
200 rpm is plenty.
An angle grinder and 40 grit flap wheel will polish it and round it, fast.
1-2 minutes.
Maybe 3-4 rotations.
It gets really hot.

Submerge bottom in water .. so the glue does not let go.
Have a safety cage.
8 rods of any steel enclosing it is fine.

paulc1:
Thanks for the idea hanermo, I did try a flap disc but you made me think that I could tack it to a bit of barstock and put it in a drill or lathe..thanks.

paul

awemawson:
What you need is a Ball Turner ! Fix ball in end of tube, skim using ball turner, remove rotate and refix ball and start over again until all is skimmed.

Here is one that I made earlier:

https://madmodder.net/index.php/topic,9699.msg107845.html#msg107845

But there again you could make a new ball and display your original as cannon shot from the Civil War  :lol:

paulc1:

--- Quote from: awemawson on October 15, 2018, 12:39:16 PM ---What you need is a Ball Turner ! Fix ball in end of tube, skim using ball turner, remove rotate and refix ball and start over again until all is skimmed.

Here is one that I made earlier:

https://madmodder.net/index.php/topic,9699.msg107845.html#msg107845

But there again you could make a new ball and display your original as cannon shot from the Civil War  :lol:

--- End quote ---
Crikey, I really like that, I saw a similar thing done with a starrett holecutter on a wood lathe to turn a ball..amazing!

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