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2016 BV350
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@eakins avatar
2016 BV350
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UTC quote
Since others will see this I want to point out

- the front sealed bearing comes out first towards the front.
You need a good circlip tool and remove that first.
-then you remove the backside roller bearing from the back.
That same tool should work or a punch.
-the front bearing is then driven in from the front, it seats.
Then you put that circlip back in to secure it in place.
-then that backside roller bearing goes in the 4mm depth like we talked about
-then the seal

I would lube at each step vs waiting to the end to attempt to get lube in there with a pinkie. Maybe Italians have skinny fingers?

I would have the dry roller bearing fully lubed before I drove it in.

We discussed the grease in the cavity idea already

- lightly grease the shaft
- then put the hub on and torque the nut down
-then put the outer lock piece and thru cotter pin on to secure it in place. Maybe a new cotter pin too.

- then brake calipers and wheel back on.

I hope this helps others! Thanks man.
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2009 MP3 400, 2004 Honda ST1300
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The video is up --> https://youtu.be/HxS3xyhb-nQ

Longer than I would have like, but it follows the process.
@eakins avatar
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2016 BV350
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UTC quote
Nice work, thanks.

So it looks like there is also another seal on that inner hub / shaft unit to keep dirt away?
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@pmatulew avatar
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UTC quote
Yes there is a big diameter seal that keeps dirt from entering that hub cavity.
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UTC quote
pmatulew wrote:
Yes there is a big diameter seal that keeps dirt from entering that hub cavity.
Is that worth replacing while in there?
No sure I see it on the fiche.
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2009 MP3 400, 2004 Honda ST1300
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UTC quote
I didn't bother to change mine. They looked okay.

I think they are part #177494 on the fork components fiche. (46X56X4) SEAL FOR FRONT CALIPER BRACKET - 20MM FORK
⬆️    About 4 months elapsed    ⬇️
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2010 gts 300 super. 09 MP3 500 lite
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I want to clear up some confusion on the needle bearing part numbers. there are actually three needle bearing if you want to do a thorough job here. the hub has one needle bearing hk2016. but there are also two more needle bearings in the other part of the hub hk2212. the bearing shaft is free to spin in all three needle bearings.

so for one wheel you need:

hk2016 = hub needle bearing
6202 = hub roller bearing
seal 177443 = small hub seal for hub needle bearing

hk2212 x2 = caliper bracket bearings
⚠️ Last edited by jerryd on UTC; edited 1 time
@pmatulew avatar
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2009 MP3 400, 2004 Honda ST1300
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@pmatulew avatar
2009 MP3 400, 2004 Honda ST1300
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Location: Sayre, PA
UTC quote
So where did you find an additional needle bearing? (parts diagram reference?)

The wheel hub on the 400 only had the outer roller bearing and the single inner needle bearing. Did they add a 2nd needle bearing on the 500's?

Or are you talking about the needle bearings in the suspension arm?
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UTC quote
jerryd wrote:
I want to clear up some confusion on the needle bearing part numbers. there are actually three needle bearing if you want to do a thorough job here. the hub has one needle bearing hk2016. but there are also two more needle bearings in the other part of the hub hk2212. the bearing shaft is free to spin in all three needle bearings.

so for one wheel you need:
hk2016
hk2212 x2
6202
seal 177443
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2010 gts 300 super. 09 MP3 500 lite
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UTC quote
pmatulew wrote:
So where did you find an additional needle bearing? (parts diagram reference?)

The wheel hub on the 400 only had the outer roller bearing and the single inner needle bearing. Did they add a 2nd needle bearing on the 500's?

Or are you talking about the needle bearings in the suspension arm?
there are bearings in the caliper support bracket. the brake caliper floats on the same bearing shaft. my rotors make rub noises after cornering. most likely these bearings wont need to be replaced. but if there is play in them the caliper would have the same play.
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2009 MP3 400, 2004 Honda ST1300
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Location: Sayre, PA
UTC quote
So....huh, I guess I learned something new. In the diagram part number 37 is listed as Piaggio #177436 which translates to a 22x28x12 needle bearing "drawn cup", or #HK2212

I guess I never figured that the hub casting would need to move separately from the spindle assembly. Will have to take another look.

If that bearing got weird the wheel would still run true on the spindle but the caliper and whatever else is attached to the outer casting might wobble.
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UTC

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2016 Vespa GTS300ie abs/asr/ess Settantesimo '70'
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2016 Vespa GTS300ie abs/asr/ess Settantesimo '70'
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UTC quote
Eakins wrote:
These are 500 hubs but looks similar.

So where is this seal going exactly.

And there is a gap between the 2 bearings, that area gets greased & that grease magically migrates over and into that open side of the cage bearing....yeah right.
Yeah, that doesn't happen, your are correct. The grease in the centre section you are talking about is to prevent corrosion. It has nothing to do with lubricating the bearings. If the bearings are single side sealed they are open to debris from corrosion getting into the bearings over a long period of time. So the grease stops this. You only need a thin smear all around the tube. Use wheel bearing grease, that doesn't melt and will stay in place.
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