No symptoms.

[Lonewolf]

Nah, they still go. I hardly ever washed my bike.

I'll vouch for that. 

[100milesaway]

I'll vouch for that. 

And I'll second that

[MGvalerio]

Cuscinetto difettoso ,mancavano  :shocked:4 sfere,incredibile ma vero.


http://www.youtube.com/embed/L6KiBJlPxsM

Bearing damaged, missing four balls, unbelievable, but true.



MGvalerio.

[pistole]

- someone on one of the US forums responded to these vids by saying that it was probably caused by the axle nut not being tightened properly, allowing the axle to turn in the swingarm.

.

[Max Way]

That is one comprehensively knackered bearing 

Very lucky it didn't cause you lose control and crash !

Max

[Boomer]

- someone on one of the US forums responded to these vids by saying that it was probably caused by the axle nut not being tightened properly, allowing the axle to turn in the swingarm.

That will not make any difference if the bearing is OK, and if the bearing seizes then the axle will rotate in the swingarm even if the castle nut is as tight as you can make it.
What I can't believe is that MG did not notice that there was a problem.
I had a similar problem happen on an XS250 back in the early 80s and it felt like someone had stepped on the back brake for me.

[pistole]

- boomer : if the axle began turning in the swingarm , it would affect the right side (as shown in MG's vids) as the left is supported by the drive gear. Eventually , the axle would lie at an angle and then it will destroy the bearing.

- i understand you're saying that the bearing failed first , but bearing failure will not result in the swingarm portion melting. Perhaps if the bearing failed , seized solid and then welded itself onto the axle. This will then result in the axle turning in the swingarm (resulting in the same ending for MG).

- whatever it is , you're right that the rider would have noticed it first in any event , considering the magnitude of the failure there. But we all know that there are very many oblivious riders/drivers out there.
.

[MGvalerio]

- boomer : if the axle began turning in the swingarm , it would affect the right side (as shown in MG's vids) as the left is supported by the drive gear. Eventually , the axle would lie at an angle and then it will destroy the bearing.

- i understand you're saying that the bearing failed first , but bearing failure will not result in the swingarm portion melting. Perhaps if the bearing failed , seized solid and then welded itself onto the axle. This will then result in the axle turning in the swingarm (resulting in the same ending for MG).

- whatever it is , you're right that the rider would have noticed it first in any event , considering the magnitude of the failure there. But we all know that there are very many oblivious riders/drivers out there.
.

DX bearing part of the axis of the rear wheel was already missing four balls from its beginning, then transferred abruptly, there are other explanations for this exception touched me.

But we all know that there are very,MGvalerio non è uno sprovveduto.


MGvalerio.

[MGvalerio]

The mileage with the C14 do not text this to prevent my information, my bearing has not broken for mileage but for lack of balls 4 inside ... understand.


http://www.youtube.com/embed/8dHoxsnvdcs


MGvalerio.

[alibx11]

MG just had a look at the videos and doesn't look to me that the bearing was originally faulty with 4 balls short as you say,

Looks to me like the bearing has heated up, started to seize and has disintegrated the mild steel bearing holders, as there are 7 balls in the good bearing and there is 7 in the bad bearing that I can see, or have I missed one?

You obviously know about mechanics as your posts on here show you are certainly spanner handy and I can't understand Italian or give the bearing closer inspection than through the videos but from what I see the bearings have simply moved round in the outer races through the ball cage breaking down.

The bearing housing in the wheel doesn't look too bad but hard to tell if it's still as round as should be without a micrometer/ Vernier callipers.....

Hope it doesn't cast too much to fix. Good luck mate.

[MGvalerio]

MG just had a look at the videos and doesn't look to me that the bearing was originally faulty with 4 balls short as you say,

Looks to me like the bearing has heated up, started to seize and has disintegrated the mild steel bearing holders, as there are 7 balls in the good bearing and there is 7 in the bad bearing that I can see, or have I missed one?

You obviously know about mechanics as your posts on here show you are certainly spanner handy and I can't understand Italian or give the bearing closer inspection than through the videos but from what I see the bearings have simply moved round in the outer races through the ball cage breaking down.

The bearing housing in the wheel doesn't look too bad but hard to tell if it's still as round as should be without a micrometer/ Vernier callipers.....

Hope it doesn't cast too much to fix. Good luck mate.

is was my mistake, you're right both balls are seven bearings, thanks man.

MGvalerio.

[alibx11]

No problem mate,

At least it would ease the fear that Kawasaki build quality was so shit that they used bearing with only half the number of balls... that would be a real quality control issue...

Unfortunately anything mechanical can fail and it's not always easy to reason why.

If you get new bearings with easily removable seals make sure there's plenty of grease in them before assembly.

Good luck and like I said.. hope it doesn't turn out too expensive.

Cheers.
Al.

[MGvalerio]

How to prevent bad surprises from wheel bearings.

http://www.youtube.com/embed/i93aDn5_8J4

MGvalerio.

[MGvalerio]

- someone on one of the US forums responded to these vids by saying that it was probably caused by the axle nut not being tightened properly, allowing the axle to turn in the swingarm.

.

Always ask to source the truth. Bearing grease, breaking inevitable ... Thank kawasaki.

http://www.youtube.com/embed/ulfbLivNcJU     

http://youtu.be/1sC_-EYsiiE


MGvalerio.


MGvalerio.

[MGvalerio]

Almost all the parts arrived, they lack the holder clamp and a seal of the bearing.

http://youtu.be/GZtXyvujDrQ


MGvalerio.