[QUOTE=krfkeith;15597065]That is a good point! I did not mean to start a debate! lol

I guess a better way to put it is with two questions:

1) What is the norm for current manufactured bikes?[quote]
Most parts are designed with thrust surfaces for lateral location, thus obviating the need for self-aligning or angular contact. The tolerance-range used tend to be in the middle-range as well. Larger-clearances aren't needed as for high-RPM motors. Nor tight-clearances with thick grease for high-load applications.

The only bearing actually needing angular-bearings would be the headsets. However, the best bearings used here are roller-bearings for high-loads. Stronglight headsets with their roller-bearings tend to last 10x longer than the ball-bearing models. Along with replaceable bearing-races makes it a great design in headsets. Several decades later when manufacturers went to integrated headsets, they used a design very similar to the Stronglight.

Pretty much all usages of bearings incorporate two widely-space bearings. Traditionally cup & cone bearings were used. When upgraded to cartridge-bearings, the dual-bearing designs pretty much guarantees the shafts are always perpendicular to the bearing surfaces. You simply cannot shove the shaft out the 2nd bearing if it was out of alignment.