Counterbalancer bearings: definite thread?

[bushmechanic]

when things start slipping like that you have to wonder why it happens

with the ball mains they slip because the crank needs to move axially so the "solution" is to actually let them slip

with the CB though there shouldn't be any significant axial loading .... the CB bearings being so tiny and only C3 they can't have much interference fit or they will be too tight to work properly

a "solution" would be C4 and more crush or a key or dowel locator in the OD so there can be a loose fit of the OD and allow more crush on the crank without closing up the bearing too much. you could also dowel into the crank web and the inner race of the bearing.

that all sounds far too hard for the sake of keeping a clattering piece of junk ..

glue it is Zaga! what did you use?

 

[zaga]

Bushie

I don't think you can get this bearings in C4, I had a hard time finding them in C3.

I've glued it with one bearing retainer medium (loxeal 53.11)

If you read carefully the workshop manual for the 01-03 it says: "When fitting the balancer to the crankshaft, make sure the balancer bearings are secured with threadlock to the crankshaft surface."

Don't know if everyone is doing that ?? or is just me

:cheers:
ZAGA

 

[bushmechanic]

yes I don't think you can get C4 either

the loctite idea is not in the newer manual as far as I know

 

[ned37]

If you read carefully the workshop manual

oh god, now i'm supposed to READ the manual :?

 

[bahnsy]

I've searched the site and cant find an answer to the question, "Can you replace the counterbalancer bearings on a 2005 FE450 rather than replace the whole assembly?" At $600 Australian dollars its akin to a house mortgage and puts an engine rebuild out of this world more so when you need a conrod as well.

 

[Goose916]

I've searched the site and cant find an answer to the question, "Can you replace the counterbalancer bearings on a 2005 FE450 rather than replace the whole assembly?" At $600 Australian dollars its akin to a house mortgage and puts an engine rebuild out of this world more so when you need a conrod as well.

Taffy sells the bearings all by themselves.

 

[bahnsy]

I'd previously searched his web site and there is no reference to separate bearings, just the complete assembly, I'll send an e-mail to follow up.

As a matter of interest, has anyone had experience in changing the bearings?

 

[bushmechanic]

the pictures of ausbergs bearings that dont show anymore are 6906 s ground or machined down narrower

ive not mucked about with them

CB belongs in the bin

 

[bahnsy]

Bushy,
With your experience in removing the counter balancer all together, which suits me as there's less spinning things to wear out & worry about, what additional tasks would need to be performed?

I'm guessing a sleeve of some description to replicate the width of the counter balancer and rebalancing of the crank would be the two that come to mind for me at the moment.

Engine is coming apart next week. I've been trying to make sure that I've got all or most parts of the parts before I strip it otherwise it will be in bits for way to long and I'll end up loosing stuff.

Thanks, Rod

 

[bushmechanic]

Yes make a collar to replace the cb

You can make an easy one or one that fully supports the inner bearing lip (slight radius )

You can also use a 20mm wide bearing nj2206 in c4 avoid SKF

Some balancing info and links In here.

go for 0.62 balance factor and 0.8mm crank axial play

I Weld the cb lube jet closed too

http://husaberg.org/mechanical/17998-bushmechanic-mongrel-628-trailbike.html

More info on the bearings

http://husaberg.org/mechanical/17170-definative-main-bearing-thread.html

 

[Taffy]

I just put the words 'balancer bearings' in a search and got this:
Taffmeisters - Husaberg, KTM, Husqvarna, Gas Gas, dirt bikes - servicing, tuning, rebuilds, parts

whilst I don't agree that it is in the right place I think that a balancer is fine for day to day bikes and riders looking for smooth comfort.

regards

Taffy

 

[bushmechanic]

for whatever it may be worth an RMZ450 does not have a Counter Balancer

nobody can tell.

with the 80mm husaberg crank and a BF of 0.625 no CB is just as good as stock crank with the cb

slight increase in vibration through the pegs

smoother everywhere else

nobody even notices my bikes dont have one,

 

[bahnsy]

I just put the words 'balancer bearings' in a search and got this:
Taffmeisters - Husaberg, KTM, Husqvarna, Gas Gas, dirt bikes - servicing, tuning, rebuilds, parts

whilst I don't agree that it is in the right place I think that a balancer is fine for day to day bikes and riders looking for smooth comfort.

regards

Taffy

I went;
Husaberg Parts > 2004 to 2008 > Engine > Bearings & Bush’s (No CB Bearing noted)
I then went;
Husaberg Parts > 2004 to 2008 > Engine > Crankcase (Found the complete CB, but No CB Bearing noted)

At that point I gave up on the logical approach to finding the CB bearings and asked the question on this forum thread.

 

[bahnsy]

Yes make a collar to replace the cb

You can make an easy one or one that fully supports the inner bearing lip (slight radius )

You can also use a 20mm wide bearing nj2206 in c4 avoid SKF

Some balancing info and links In here.

go for 0.62 balance factor and 0.8mm crank axial play

I Weld the cb lube jet closed too

http://husaberg.org/mechanical/17998-bushmechanic-mongrel-628-trailbike.html

More info on the bearings

http://husaberg.org/mechanical/17170-definative-main-bearing-thread.html

Bushy,
My bike is a trail bike destined for the forests of South East Australia and it won’t see and long haul constant RPM road sections. Given it’s only a 450, I doubt a little extra vibration will be any issue to me.
I going to flick the CB and go with a standard bearing and get a collar made up (or) if its cost effective ill use the 20mm wide bearing as you’ve suggested. You have noted that the SKF is not the best bearing in this configuration, what has been the most durable bearing that you have used in place of an SKF unit?

Thanks, Rod

 

[bushmechanic]

Special Ntn nj206 from orangeberg or as Ktm part
brand: NTN NJ206 ET2XCS46 this available through KTM, part Number 50330082000


For the 20mm wide c4 I used "rollway" bearings as "weed " or pop up had done

 

[bahnsy]

[/URL][/IMG]

[/URL][/IMG]

After much deliberation I've decided to stick with the counter balancer. I've stripped the engine to find that the left side main bearing (an SKF piece) has failed and most likely filled the counter balancer bearings with swarf and as a result there pretty ordinary. I'm going to replace the bearings but I've found that the bearings are not a tight fit into the counter balancer. For the people that have relaced the bearings, what have you found as far as the fit of the bearings into the balancer? I'm thinking that we'll bearing mount them in them place some centre punch some marks around the balancer to tighten the tolerance.

 

[Borgschulze]

Please tell me that wasn't a brand new liner? I just mailed one back to Orangeberg in October.

 

[Taffy]

Bahnsy
yes that is what i'd do. I tend to hit them about 3mm from the edge quite hard and it does the trick. ball-pane hammer.

K.I.S.S.

Taffy

 

[bushmechanic]

Orange berg is having counterbalancer bearings made for us now at a good price

his contact details are in the link in my signature

 

[RustyAs]

Hi all,

Rode a 550 last summer and I still can't get it out of my head, so I'm doing my homework before purchasing one We've had a really good summary thread on the main bearings recently: viewtopic.php?f=5&t=18085

Some local riders have warned against counterbalancer bearing failure. How common are these failures in the '04-'06? '07-'08 bikes? From reading up on the CB/bearings, it seems that there are a few preventative options:
- Remove the counterbalancer. Don't rebalance the crank.
- Remove the counterbalancer, rebalance the crank. Better - but more work of course.
- Use the double-bearing counterbalancer assembly that appeared in the '07 models. (It doesn't seem to be unanimously considered better to use a counterbalancer. Opinions vary. AFAIK the drawback is that to switch to the double bearing counterbalancer you have to get the entire counterbalancer assembly, which isn't cheap.)

Can we say today that these are the definitive fixes - and all of the fixes?

Any information most well appreciated! Thank you!

Hi all,

Rode a 550 last summer and I still can't get it out of my head, so I'm doing my homework before purchasing one We've had a really good summary thread on the main bearings recently: viewtopic.php?f=5&t=18085

Some local riders have warned against counterbalancer bearing failure. How common are these failures in the '04-'06? '07-'08 bikes? From reading up on the CB/bearings, it seems that there are a few preventative options:
- Remove the counterbalancer. Don't rebalance the crank.
- Remove the counterbalancer, rebalance the crank. Better - but more work of course.
- Use the double-bearing counterbalancer assembly that appeared in the '07 models. (It doesn't seem to be unanimously considered better to use a counterbalancer. Opinions vary. AFAIK the drawback is that to switch to the double bearing counterbalancer you have to get the entire counterbalancer assembly, which isn't cheap.)

Can we say today that these are the definitive fixes - and all of the fixes?

Any information most well appreciated! Thank you!

Sent from my LG-D320 using Tapatalk