RE: [ST]rear hub play. follow up

[Frederic.Nizery@xxxxxxxxxx]

That's indeed surprising to se a bearing rolling on the axle. In addition,
they're not built at the same time at the same location. But as 
manufacturers sell
them, it's not an isolate case.

The needle are not conic. Having taken apart again the hub (it's in my 
office right now)
I was unable to detect any wearness w/ a numerical caliper (precision 
1/100 mm).
I would say either the ouside cage or the needle are responsible, or the 
fact that the grease
is not the same (I think it was synthetic before) could induce the 
detection now of a play that was
here since the beginning.
Yes, we can see that the needle were rolling at the middle and the 
surface on this race is pretty
polished but that's it. But it was even more polished where the ouside 
seal is "rubbing".
Tonight, measurement at the dealer.

I suspect that they (triumph) can't guaranty no play. But if play at one 
end that means play at the other end.
Because it's a double bearing.
If the bearing is a  C2,  nominal play is arround  4/100e  mm.

The only special tools needed are a 46 mm socket and a huge extracting 
plier to remove the hub from the arm
if you want to really clean it. I didn't do is in a first place but did 
the second time.

I suppose that no grease or a noise or any resistance is a problem. I am 
not sure a little play is.

Fred 02 ST BRG
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