It probably doesn't. Still, I miss the days of narrower spindles, where you could spin a crank (with the chain removed, and bike upside-down or in a stand) and the crank would spin for a minute. Actually, I'm still in those days.
The loose ball BB in my Raleigh spins like that.
The sealed Campy BB's in my other road bikes will actually rock back and forth like a pendulum when you give them a nudge while one pedal is off. I was nearly hypnotized by this the last time I did some pedal maintenance.