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Fork seals

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ThunderGuts
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Joined: 13 Nov 2018
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PostPosted: 07:07 - 20 Jul 2019    Post subject: Fork seals Reply with quote
Morning all.

Are fork seals generic, ie just need to be the right size (which are hopefully fairly standard!), or are they manufacturer specific? It’s for my ER5 (so normal, not USD, forks).

Cheers
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1198
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Joined: 24 Jan 2013
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PostPosted: 07:13 - 20 Jul 2019    Post subject: Reply with quote
Specific per bike (although the same forks may be duplicated between models) is my understanding.
I wouldn’t skimp and get pattern one for seals either personally, I can’t see oe being silly expensive.
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ThunderGuts
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Joined: 13 Nov 2018
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PostPosted: 07:37 - 20 Jul 2019    Post subject: Reply with quote
1198 wrote:
Specific per bike (although the same forks may be duplicated between models) is my understanding.
I wouldn’t skimp and get pattern one for seals either personally, I can’t see oe being silly expensive.


Cheers. Yeah not for skimping it was more about getting some today rather than online ordering!
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Riejufixing
World Chat Champion



Joined: 24 Jun 2018
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PostPosted: 08:16 - 20 Jul 2019    Post subject: Re: Fork seals Reply with quote
ThunderGuts wrote:
Are fork seals generic, ie just need to be the right size (which are hopefully fairly standard!), or are they manufacturer specific?

They are almost all a standard size, whether they're for static (e.g. "O" ring type), rotary (e.g. crankstaft, gearbox) or reciprocating (e.g. forks). There are all sorts of designs/features for various applications including forks. If you look at the seal, you may be able to read the size/type off it. Look at info from SKF, simplybearings and others.
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Riejufixing
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Joined: 24 Jun 2018
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PostPosted: 08:31 - 20 Jul 2019    Post subject: Reply with quote
ThunderGuts wrote:
Yeah not for skimping it was more about getting some today rather than online ordering!

It looks as though (but don't quote me) you'll need a 37x50x11 double-lipped seal and a wiper seal per leg. You can poke about on t'internet and find stuff, e.g.:

https://simplybearings.co.uk/shop/p34096/37x50x11DC4SS-Metric-Fork-&-Damper-Nitrile-Rubber-Oil-Seal-with-2-Opposite-Facing-Individually-Sprung-Sealing-Lips-&-Raised-Outer-Sealing-Band-on-Outside-Diameter/product_info.html

Not sure about weekend opening time for stockists though!
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Robby
Dirty Old Man



Joined: 16 May 2002
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PostPosted: 10:05 - 20 Jul 2019    Post subject: Reply with quote
Theoretically, they just need to be the right size.

In practice, having done many sets over the years, genuine seals are far more likely to work. Your local dealer may even have them in stock.

Replacing the bushes is also highly recommended.
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