OP, get the right sized BB for your specific crankset.
Originally Posted by
Jeff Wills
Yeah, what he said. OTOH, a relatively recent double crank on a square-taper spindle is probably sitting on a 113mm spindle. On the gripping hand, it can be very brand specific. If you know what brand crank you have, you can look up the length here:
Sheldon Brown's Bottom Bracket Size Database
As your links elaborate on...entirely depends on who made it, in what year, and in what model. Campagnolo has used probably a dozen spindle lengths over the years across their models over the years.