Mon, 20 Apr 1998 10:23:46 +0200 (MET DST) - Message No. 2644
From: Michael Dipper

Subject: Re: reasons for bearing failure


Hi !

On Sun, 19 Apr 1998 Marcel_Sieling@d.maus.de wrote:

> Measurements on my @ (RD07 dated April '94)
> 
>    Distance in "Nabe": 124,5 mm
>    Length of Tube "Z": 123,7 mm.
> 
> As you see, the inner tube is too short and therefore also a new bearing
> will break after a short time.

Similar values at my AT, too :-) I noticed and wondered about that, too,
while changing the bearings. I think this is no particular difference at
your AT, it is a general measure. Can anyone explain that ? Perhaps it is
for easier dismounting of the bearing ? The Honda handbook tells you to
move the inner "tube" a bit to the side to be able to knock on the bearing
from the opposite side. This wouldn't be possible, if the tube would fit
exactly. On the other hand the questions is, if the bearing gets really
damaged by that pressure ? It is a ball bearing and the pressure from bike
and driver may be even higher than that from the screwed axis ? But in
a "better" direction ... ?

You see lots of "?". Just out of my thoughts. Who knows the truth ?

--- Micha ---

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dipper@normans.isd.uni-stuttgart.de