Originally Posted by
jeffpepperdine
On a somewhat related note, I thought I heard that Ti axles with built in Ti cones would wear out quickly, because the bearing race was not as durable as a comparable steel race. I think this is why most companies used sealed bearings. Of course, I can't remember where I heard this, and I may be wrong.
Actually, the bearing races as they are dedicated parts and only are bearing races, could be of better quality steel and have better heat treatment control. But maybe the assembly tolerances, and flex of the system make for a shorter bearing life. Campagnolo for their part went with 3/16" ball bearings for their ti bottom brackets. Who knows is that had anything to do with it.