Need help identifying correct steering stem bearing to be pressed on tomorrow for YZ250

Premixed112
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2/19/2015
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Los Angeles, CA, USA
Edited Date/Time 12/14/2015 11:12pm
I feel dumb posting this, but oh well. I'm changing out my steering stem bearings and instead of trying to pound on the new bottom bearing onto the stem and likely mess it up, I'm going to take it to a machine shop and have them press it on for me. Only one problem: I don't know which bearing and seal goes on the bottom triple clamp.. haha. The bearing kit I bought was All Balls and they are a lot different then the oem ones I took off and I can't tell which one is supposed to go on the shaft of the bottom triple clamp.









My guess is that the correct one is the one with the "taller" race and smaller width bearing. But like I said, I want to be sure.


Also, might as well ask about the seals. The two smaller ones appear to be the same size, and I'm assuming one of them is the one that goes on before the bearing. But I just want to verify that before I take the stem to the shop to have the bearing pressed on over it:





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Premixed112
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8/6/2015 12:25am
Edit: Yes, I realize I accidentally put them upside down on the shaft for those pictures.
Markopolo400
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St. Paul-ish, MN, USA
8/6/2015 6:42am
The bearings have different IDs. The bearing with the larger ID goes on the bottom.
8/6/2015 9:58am
@Premixed112 - Your bearings will have our part number on them and also come in a bag with the part number on them. Bearing 99-3521 is for the bottom and bearing 99-3513 is for the top.

The seals will match the bearing and actually snap on to them.

Let me know if you run into any issues!
Premixed112
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Los Angeles, CA, USA
8/6/2015 10:41am
@Premixed112 - Your bearings will have our part number on them and also come in a bag with the part number on them. Bearing 99-3521 is...
@Premixed112 - Your bearings will have our part number on them and also come in a bag with the part number on them. Bearing 99-3521 is for the bottom and bearing 99-3513 is for the top.

The seals will match the bearing and actually snap on to them.

Let me know if you run into any issues!
Wow, that's pretty helpful when you have a manufacturer posting on a forum like this. Thanks!

The Shop

wsc96
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AU
8/6/2015 4:27pm
Yeah, good service. Nice job AllBallsRacing
Curlytop
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12/14/2015
Location
AE
12/14/2015 2:30am
@Premixed112 - Your bearings will have our part number on them and also come in a bag with the part number on them. Bearing 99-3521 is...
@Premixed112 - Your bearings will have our part number on them and also come in a bag with the part number on them. Bearing 99-3521 is for the bottom and bearing 99-3513 is for the top.

The seals will match the bearing and actually snap on to them.

Let me know if you run into any issues!
I am about to embark on this EXACT same topic, with almost the EXACT same issues.

The All Balls kit has 2 bottom seals and 1 top seal. Does anyone know why??

I have figured out that the inner bearing race with the larger shoulder will go on the bottom of the stem, so that it is raised slightly above the seal. All good. All clear. But why send 2 bottom seals with the kit??

If anyone could clarify that, I would be extremely grateful.
12/14/2015 5:07am
@Premixed112 - Your bearings will have our part number on them and also come in a bag with the part number on them. Bearing 99-3521 is...
@Premixed112 - Your bearings will have our part number on them and also come in a bag with the part number on them. Bearing 99-3521 is for the bottom and bearing 99-3513 is for the top.

The seals will match the bearing and actually snap on to them.

Let me know if you run into any issues!
Curlytop wrote:
I am about to embark on this EXACT same topic, with almost the EXACT same issues. The All Balls kit has 2 bottom seals and 1...
I am about to embark on this EXACT same topic, with almost the EXACT same issues.

The All Balls kit has 2 bottom seals and 1 top seal. Does anyone know why??

I have figured out that the inner bearing race with the larger shoulder will go on the bottom of the stem, so that it is raised slightly above the seal. All good. All clear. But why send 2 bottom seals with the kit??

If anyone could clarify that, I would be extremely grateful.
This actually isn't the only kit we sell where you get an extra seal or bearing. The only reason we do that is because there is another application that uses that bottom seal you speak of on both the top and bottom.

Instead of creating a new part number, to keep it simplified for distributors and dealerships, we'll just include an extra seal.



1
Curlytop
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12/14/2015
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AE
12/14/2015 11:12pm
Thank you for the feedback. Bike happily re-assembled and will get BRAAAP!!! this afternoon.

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