GPZ Unitrak 1100

[RALPHARAMA]

I'm looking for a set of good bushes that go inside the needle rollers on the swinging spindle of my '83 GPZ1100A1 uni

They look like this when they're fucked



From memory I think the ID is 15mm OD is 25 and length 37 . I'd spin some up on the lathe but they're hardened and ground

[pluto]

Mine were similarly shot, tried every where no longer available from Kawasaki, got them made in stainless steel and bought needle rollers from simplybearings.co.uk with genuine seals (still available) works a treat. The dimensions are on the cmnsl website
Dave

[jonhunt]

if these are what the bearing runs on they need to have a hardened surface I doubt stainless will last that long. HRC 58-64

www.ntn.co.jp/english/products/pdf/need ... pdf‎

[pluto]

Depends on how much lube and how few miles you do!

[jonhunt]

You need lube but it won't help with the load. Yep if you dont ride it it will never break

[RALPHARAMA]

I can easily spin some up in stainless, but as Jon rightly points out, they need to be hardened.

[pluto]

My reasoning is I will be lucky to do 1000 miles on it each year, if it wears out in that time I sort out another one. It's got a bolt running through it so I can't believe it will snap so the only issue is reduced lifespan. Seeing as Kawasaki probably had to over engineer them incase of neglect (which they all were - so finding a good second hand one is unlikely) a reduced spec item that keeps the bike on the road has to be a sensible option - doesn't it? Or am I risking a catastrophic suspension failure?
Either way, if you find a way of making some hardened steel items perhaps you could make me some too - I would need both smaller diameter spacers, the big one is in good shape.
Good luck
Dave

[tlc]

Fork rechrome specialists will be able to sort them surely?

[RALPHARAMA]

Luckily I have managed to source one from Cradley and one is OK so I'm sorted for the time being

[jonhunt]

by the way the technical term for f&*ked is false brunelling caused by small movements back & forth that removes the lube & wears the surface. Just being a smart arse

[RALPHARAMA]

by the way the technical term for f&*ked is false brunelling caused by small movements back & forth that removes the lube & wears the surface. Just being a smart arse

I know and understand the cause and result of this phenomena, though I didn't know the technical term to which you refer, but can assure you that all engineers, regardless of professional speciality, will be fully conversant with the term 'fucked'. I therefore would humbly suggest that when conveying the overall condition of a part, my use of the vernacular, is probably better use of the language, particularly as the Z1OC is unlikely to have a second member with any knowledge or understanding of the term 'false brunelling', whereas I bet close to 100% know what I mean when I say 'it's fucked'

Yeah - I speak smart arse too

[Taffus]

Yep f*cked works as does googling the term to find the correct spelling
False_brinelling

[RALPHARAMA]

That makes sense - it may derive from the dents made by the Brinell hardness testing method?

[jonhunt]

Finger trouble

[bigrocketrider]

http://www.ebay.co.uk/itm/Kawasaki-ZX11 ... 3a892b738e

There you go VDUK. Its in the states but if you need it..............