In fitting my KX450 fork to the 05 KDX220, I'm considering a different way to mount the fork, but haven't found the magic solution yet.
Instead of pressing out the stem, I'd love to find the right sized top bearing so that I can keep the KX stem with the KX fork (and my KDX stem with my KDX fork).
A tapered roller bearing that's 28 x 47 x 15 mm would be the cat's ass - it would drop right in. Unfortunately, FAG and SKF don't make this size of roller bearing, likely because it's not a possible size. The stock KDX bearing is 25X47X15 mm and the KX stem is 28 mm.
I found an FAG NAO 30 X 47 X 16 needle bearing, which would fit with a 1 mm spacer between KX stem and bearing ID. But it's a needle bearing - will it hold up to axial loads? I'd also have to figure out a seal for it.
Got any suggestions where else to look?
Yeah, I know - I'll probably end up going the tried and true route, but thought I'd give it a look from a different angle.
any bearing experts out there?
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Needle bearing wont handle the proper loads. I'm not sure about the KX450 stem/bearing size as I used a KXF250 front end. Unfortunaly a bearing of that size probably does not exist due to the large ID,small OD and angle of rollers (pretty sure next size up is 52mm OD). Did you check KOYO? I belive they make most bearings for Kawasaki.
In my case with the KXF250 front end I machined a new stem out of aluminum. I'm sure it wouldn't cost much to have a shop do it.
In my case with the KXF250 front end I machined a new stem out of aluminum. I'm sure it wouldn't cost much to have a shop do it.
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I think you need to pay a visit to your local bearing supply house.
It is possible that you would have to change the "cup" part of the bearing (outer race) in the frame. I went that way when I put a KX front end on my KDX. I kept the KX stem with the KX forks.
I found that I could find a bearing for the lower part of the stem but not the top. I ended up cutting off the pocket that holds the bearing cup and welding one on that let me use the bearing set I wanted.
I wrote it up on here if you can find it.
A set of needle bearings is probably not the way to go....
It is possible that you would have to change the "cup" part of the bearing (outer race) in the frame. I went that way when I put a KX front end on my KDX. I kept the KX stem with the KX forks.
I found that I could find a bearing for the lower part of the stem but not the top. I ended up cutting off the pocket that holds the bearing cup and welding one on that let me use the bearing set I wanted.
I wrote it up on here if you can find it.
A set of needle bearings is probably not the way to go....
'08 KTM200xc
'99 CR/KDX Hybrid with that RB stuff done to it
KX100 for the boy
'99 CR/KDX Hybrid with that RB stuff done to it
KX100 for the boy
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Try this.
I went back and looked. I don't think you can do what you want, exactly.
http://kdxrider.net/forums/viewtopic.ph ... &&start=20
I went back and looked. I don't think you can do what you want, exactly.
http://kdxrider.net/forums/viewtopic.ph ... &&start=20
'08 KTM200xc
'99 CR/KDX Hybrid with that RB stuff done to it
KX100 for the boy
'99 CR/KDX Hybrid with that RB stuff done to it
KX100 for the boy