Originally Posted by Bill Winney

Do the math for a 10' cheater bar: 100 lbs x 10 ft = 1,000 ft-lbs...

That's that way you break things. What will break here is not the bearing but the threads on the spindle or inside the hub nut. The bearing also will likely fail sooner.

I don't care how big & nasty something is, it's built for a certain clamping force. In this day & age of computer design there is far less margin for error than once upon a time...

Once you go beyond the elastic limit of the metal, it's deformed permanently...
Of course we're talking of thousandths... and one thousandth too much still goes into plastic deformation. You can't pull it back from plastic deformation so it will fail much sooner.

For the rest of the world: A ten foot cheater bar is a Bad, bad idea.