another question - will bearings 'splay' out in a race when compressed?
When you compress a threaded headset using loose ball bearings, will the bearings compress out correctly - along the edges of the race, or is there a chance the bearings might 'double up', and not all of them be along the edge of the race? I can just picture it now, going down a hill and suddenly the fork becomes loose because the bearing moved where it's supposed to be. :-O
too many bikes from 1967 10s (5x2)Frejus to a Sumitomo Ti/Chorus aluminum 10s (10x2), plus one non-susp mtn bike I use as my commuter
The two races are curved such that the balls are driven to the designed track line on both parts. That's why one is sort of a cone, and the other a cup. If you can't imagine this, pick up a pong pong, golf, or any ball of similar size. Cup both hands slightly and press your hands together with the ball between them. It'll e driven to the center and trapped there. That's how the hearing races use curvature to trap the balls in desired tracks.
'''96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '12 Surly Pacer, All are 3x8,9 or 10. It is hilly around here!
If any of the balls "doubled up" and didn't fall into the track (which could happen only if you added too many balls) you would not be able to adjust the headset and the steering would bind and be obviously not correct right away.