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submitted 1 year ago by [email protected] to c/[email protected]

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[–] [email protected] 4 points 1 year ago (1 children)

New ball bearings are still likely significantly smoother than the earth. Old worn out ball bearings might be rougher.

[–] [email protected] 3 points 1 year ago* (last edited 1 year ago)

After doing a bit of digging it looks like Earth would be comparable to a 1 inch grade 1000 ball bearing.

God damn ball bearings get down to some crazy high tolerances.

I'm happy I dig some digging into it.

Edit: Grade 1000 is a really low grade ball bearing, thought I should clarify that.