2010+ hub bearings - MVAgusta.net
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post #1 of 8 (permalink) Old 05-10-2018, 03:31 AM Thread Starter
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2010+ hub bearings

2013 ~18k miles the rear hub failed in my 2007 F4 1000R, replaced with 2010+ hub and axle.
It is now 2018 and i've covered another 11k and noticed play in the rear wheel, enough to suggest worn bearings. I'm looking for assistance in identifying the bearings/seals, having searched through many posts it looks as though bearing swaps are usually on the pre-2010 hubs, I can't find anything for 2010+ hub rebuild.

The sprocket side nut was incredibly tight and the axle wouldn't come out without a 10lb hammer on it, the inner races of the needle bearings were tight on the axle and one(wheel side) was corroded, or perhaps had been overheated.
The inner races on the needle bearings are quite loose on the outers, so I guess replacement of the two needle bearings is required, and whilst I'm there the single ball bearing on the wheel end of the hub.

I'm assuming I need:
2x HK5520
1x 6810-2RS?
Some seals that I can't identify.
Can anyone confirm the bearing types and seals?
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post #2 of 8 (permalink) Old 05-10-2018, 03:43 PM
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Bearing numbers are correct.Seals are 55x63x5.
Not much grease in there and it has gone off.
Water ingress maybe.


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post #3 of 8 (permalink) Old 05-10-2018, 04:07 PM Thread Starter
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Thanks mitchy, I took these pictures after I'd wiped some of the grease out of the bearings to see if there was any noticeable damage.
They just looked quite warn so hopefully a set of new bearings will cure the wobble
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post #4 of 8 (permalink) Old 05-10-2018, 06:02 PM
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Water ingress through the 6810-2RS bearing.....
Replace the 6810-2RS, it controls end play
Please post pictures of the inner races, they should have a light haze on them from the needles

Deburr the spacer between the inner races, it's what cuts the seals
Clean the rust off the axle with 400 grit wet or dry sand paper
Torque the pinch bolts to 15lbft/20Nm NO MORE!

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post #5 of 8 (permalink) Old 05-14-2018, 02:49 AM Thread Starter
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Cleaned it up a bit more and then took some close up pictures.
The inner race on the sprocket side has an even wear to it, the wheel side (the one with the dark mark inside) looks more worn.
When looking for wear/play, there is as equal play in the bearings themselves as there is between the axle and the inner race. Makes me wonder if replacing the HK5520 bearings without replacing the inner races will do anything?
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post #6 of 8 (permalink) Old 05-14-2018, 03:51 PM
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If it was me,I would replace the 2 inner rings.


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post #7 of 8 (permalink) Old 05-19-2018, 04:29 AM Thread Starter
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In the end replaced both HK5520 and inner rings and the seals.
The 6810 was not worn at all so went back in.
New seals and then re-installed with only 20nm on the clamp bolts
No more wobble!
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post #8 of 8 (permalink) Old 05-19-2018, 11:06 PM
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Check the rust stripe on the inside of the wheel side inner race!!!!!! top picture post #5

That's from overheating it and condensation.......pinch bolt torque too high

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