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Author Topic: Dakar Swingarm Bearing Mod  (Read 6832 times)

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Offline Jughead

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Dakar Swingarm Bearing Mod
« on: June 30, 2010, 09:38:00 am »
After the recent bearing fail (http://www.wilddog.za.net/forum/index.php?topic=51673.0) I decided to replace the bearing with Phosphor bronze bushing.  Herewith some pics of the mod.

This is what the bearing looks like after a few too many water crossings and no maintenance.






New Bushes and inner race


Old and new


Hole drilled and tapped to accommodate the grease nipple.


Grease nipple fitted with dust cap.


Fitting the bush


Unfortunately the right hand side necessitated a hole to be drilled in the end of the chain guide.


Position of the rhs nipple, easily accessible be removing the front sprocket cover.


And with it's dust cover.







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Offline michnus

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Re: Dakar Swingarm Bearing Mod
« Reply #1 on: June 30, 2010, 09:43:24 am »
nogal nifty thanks for sharing.  :thumleft:

btw, it's quite easy to rip the swing-arm out and re grease the races every 20000km, they would last a life time.  ;)

Offline BOER!

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Re: Dakar Swingarm Bearing Mod
« Reply #2 on: June 30, 2010, 09:44:02 am »
Excellent.  Good job, and thanks for posting Juggie.  :thumleft:
 Considering doing the same to mine.

Did you buy the bushes standard or had them custom made?   :patch:
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Offline Jughead

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Re: Dakar Swingarm Bearing Mod
« Reply #3 on: June 30, 2010, 09:47:07 am »
Excellent.  Good job, and thanks for posting Juggie.  :thumleft:
 Considering doing the same to mine.

Did you buy the bushes standard or had them custom made?   :patch:

Bushes were custom made BS, together with the SS inner race.
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Offline Battlestar

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Re: Dakar Swingarm Bearing Mod
« Reply #4 on: June 30, 2010, 09:47:42 am »
Brilliant

Well done
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Offline Jughead

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Re: Dakar Swingarm Bearing Mod
« Reply #5 on: June 30, 2010, 09:57:11 am »
nogal nifty thanks for sharing.  :thumleft:

btw, it's quite easy to rip the swing-arm out and re grease the races every 20000km, they would last a life time.  ;)

So i discover Michnus.  I was previously led to believe that the tank had to be removed and the shock strapped up etc, etc.  Major mission!  Now I discover it's only 2 bolts.  ???  Had I known that I would've serviced it more than every 20k

I came here to drink milk and kick arse!  And i've just finished my milk.
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Offline michnus

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Re: Dakar Swingarm Bearing Mod
« Reply #6 on: June 30, 2010, 10:00:03 am »
did you get prices from the dealer for the bushes and bearings or can it be bought aftermarket?

Offline Jughead

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Re: Dakar Swingarm Bearing Mod
« Reply #7 on: June 30, 2010, 10:04:22 am »
did you get prices from the dealer for the bushes and bearings or can it be bought aftermarket?

http://www.wilddog.za.net/forum/index.php?topic=51673.0

Bearings can be bought anywhere for R50 each.  It's the inner race that's the problem.  None available in the country (what's new!) and a 21day wait to get zem from germany ous.
I came here to drink milk and kick arse!  And i've just finished my milk.
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Offline Bernard Draadkar

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Re: Dakar Swingarm Bearing Mod
« Reply #8 on: June 30, 2010, 07:09:39 pm »
Thanks Jughead! I have just done both my forkseals and headset bearings (myself) and this was next on my list. Thanks for the tip Jughead and Michnus of loosening only the two bolts. Also thought I had to take everything apart. (You ous there in PE do the Baviaans water crossing too often I think. Lekker spoilt...)
 

Offline grego

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Re: Dakar Swingarm Bearing Mod
« Reply #9 on: June 30, 2010, 08:15:38 pm »
where did you buy the dust caps for the grease nipples?
 

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Re: Dakar Swingarm Bearing Mod
« Reply #10 on: July 01, 2010, 02:44:43 pm »
where did you buy the dust caps for the grease nipples?

Those are actually covers on the brake fluid bleed nipples on many cars.  Just visit your freindly scrapyard and you can pick up handfulls for next to nothing.
I came here to drink milk and kick arse!  And i've just finished my milk.
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Offline Sakkie

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Re: Dakar Swingarm Bearing Mod
« Reply #11 on: July 01, 2010, 02:57:27 pm »
Lekka Jughead !   :thumleft:
We should give it a nice test soon - Sunday perhaps old chap?

You still on for tonight?
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Offline grego

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Re: Dakar Swingarm Bearing Mod
« Reply #12 on: July 01, 2010, 09:17:10 pm »
where did you buy the dust caps for the grease nipples?

Those are actually covers on the brake fluid bleed nipples on many cars.  Just visit your freindly scrapyard and you can pick up handfulls for next to nothing.
lekker... cool idea!
 

Offline lecap

Re: Dakar Swingarm Bearing Mod
« Reply #13 on: July 02, 2010, 08:18:16 am »
Using stainless for the replacement of the inner race is less than ideal as it does not pair nicely with phosphor bronze in high pressure applications (shows rapid wear from galling).
If you want to use stainless inner races rather use composite bushes like Glycodur F.
If you want to use bronze get hardened and tempered (58-62HRC) carbon steel or tool steel or even better hardened & tempered and plasma nitrided and plasma oxidised for high corosion resistance.
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Re: Dakar Swingarm Bearing Mod
« Reply #14 on: July 02, 2010, 08:37:43 am »
Whoa that is a mouth full  :o
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Offline michnus

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Re: Dakar Swingarm Bearing Mod
« Reply #15 on: October 26, 2010, 08:13:08 pm »
Tell me I can still use these bushes?  :-\  Was a moerse job getting the old bearing sleeves out, had to heat up the swing arm pivots to hell hot and then bliksem them with a 100ton hammer.

The bushes must be chromed for good effect?

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Re: Dakar Swingarm Bearing Mod
« Reply #16 on: October 26, 2010, 08:16:28 pm »
jughead your races still holding up ???

i would really like to know how long they last
 

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Re: Dakar Swingarm Bearing Mod
« Reply #17 on: October 26, 2010, 08:46:14 pm »
Tell me I can still use these bushes?  :-\  Was a moerse job getting the old bearing sleeves out, had to heat up the swing arm pivots to hell hot and then bliksem them with a 100ton hammer.

The bushes must be chromed for good effect?

In my professional opinion, they look like they have been subjected to overloading due to carrying Hair Bear and hair salon luggage  O0 
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Offline michnus

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Re: Dakar Swingarm Bearing Mod
« Reply #18 on: October 26, 2010, 09:17:59 pm »
Tell me I can still use these bushes?  :-\  Was a moerse job getting the old bearing sleeves out, had to heat up the swing arm pivots to hell hot and then bliksem them with a 100ton hammer.

The bushes must be chromed for good effect?

In my professional opinion, they look like they have been subjected to overloading due to carrying Hair Bear and hair salon luggage  O0 

hahaha se moer man  :D

what about titanium ones can you make me a set to be here by Friday?  ;)

Offline Jughead

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Re: Dakar Swingarm Bearing Mod
« Reply #19 on: October 28, 2010, 10:17:08 am »
Tell me I can still use these bushes?  :-\  Was a moerse job getting the old bearing sleeves out, had to heat up the swing arm pivots to hell hot and then bliksem them with a 100ton hammer.

The bushes must be chromed for good effect?
Those races are MT boet.  New ones only available from Germany at around R260 ea.

jughead your races still holding up ???

i would really like to know how long they last
Have done about 6k kms on the bike with the new SS races.  Checked them 2 weeks ago and they are still 100%.  VERY happy!  :biggrin: :biggrin:
I came here to drink milk and kick arse!  And i've just finished my milk.
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