Worn linkage roller bearings after 15h

[twowheels]

Sorry to dissent, but I'm going to say you lost one of your rollers. If memory serves correct you should have 37 needles in each bearing ... and I only know that because I had a gap when re-assembling after greasing as well. What usually happens is that one roller sticks up slightly and the bushing pushes it out the other side upon insertion when you're not looking.

[Johnny Depp]

Sorry but what's the front fender brace? As I mentioned, the noise from the front may well be plastics, I couldn't find anything being loose though.

the black is the brace. push it down and you'll hear it. lift the rear up and down and you'll hear that mudguard too.

[Leon_RR250]

Hi!

This is how the linkage on my 2015 350 looked like at 37 hours. The gaps are bigger than in the previous models, I think, but this time I had no roller moving from its place as easily as in the previous models. I checked carefully and I am sure no pin was lost. Also there is the same gap in both bearings.

[ricoyam]

Most of the needle bearings used in suspension are caged in a plastic or phenolic separator. Most of these are impossible to lose a needle from. The spacing is necessary because if it wasn't there the needles would have adjacent faces turning in opposite directions causing binding and very high wear. Bearings without a cage and made up of loose needles or balls will have a gap nearly as wide as one needle or ball to allow some clearance and prevent any pressure forcing the bearing elements together.

[Phatpat]

Sorry to dissent, but I'm going to say you lost one of your rollers. If memory serves correct you should have 37 needles in each bearing ... and I only know that because I had a gap when re-assembling after greasing as well. What usually happens is that one roller sticks up slightly and the bushing pushes it out the other side upon insertion when you're not looking.

Yeah but that would mean that I would have disassembled the linkage/lever before for that to be the case here, which I haven't. It was like that after just taking the bushing out and I find it hard to believe that that simple action would make a needle fall out, after all it was still quite greasy in there. I also checked the floor just to be sure but didn't find anything. Unless it would have happened at the factory when first being assemblied.

[Phatpat]

I bought a pair of new roller bearings to have as spare but also to be able to change them in case they're actually worn, I pushed the pins aside and the gap was exactly the same as in the photo, So I've decided to wait with changing them.

Another question...

Has anyone got the torque/momentum specs for the linkage?

[dirtbird]

45-50Nm is enough for me.
In the past I remember using 70Nm in the shock lower.... and observing the clevis' deformation.....

[Phatpat]

45-50Nm is enough for me.
In the past I remember using 70Nm in the shock lower.... and observing the clevis' deformation.....

Is that just a personal preference or taken from the technical manual?

[dirtbird]

Personal.
Search the forum and you will find much more on this.

[Phatpat]

Personal.
Search the forum and you will find much more on this.

Ok yeah found some info but seems like most people think the Nm values are to high? About 50-70 nm seems like what people go with. That chart said 90 nm on some of the bolts, sounds like a lot.