• Husqvarna Motorcycles Made In Sweden - About 1988 and older

  • Hi everyone,

    As you all know, Coffee (Dean) passed away a couple of years ago. I am Dean's ex-wife's husband and happen to have spent my career in tech. Over the years, I occasionally helped Dean with various tech issues.

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The world is changing ? Bearing talk upside down

GaryM

GaryM

Husqvarna
AA Class
Well its looks like soon we are going to lose supplies from bearing manufacturers.
The 3205 is soon ending for production from ZKL and SKF at least the double row max
capacity version.

So been talking to folks.

So been talking to a few folks and a person with great knowledge and test bearings everyday says today with the cost of labor in China and capital improvements in new equipment that going on that the bearings made from China have reached a new level and now may be making some of the best. Why ? just that basic cost is less more is put in product and world market is demanding high quality. Wow can't believe I wrote that.
So the world may be changing. So made in China by major manufacturer thats, not a knockoff may be great. How would one ever know?



Don't despair looking into the reason why bearing was over engineered for the main bearings. We may not need that bearing. It may have been done by Husky to account for strength in mag bore and allow for any production flaw in the in-line boring.

Sorry this is my geek part of me talking but interesting.
 
We are not talking about knock offs. We are talking about true new world changes. Now do you know that tons of counter bearing have been
seized and destroyed last two years mostly in Ca?

Do you one of the highest reported bearing were repackaged FAG bearings with German labels.



Also when you purchased those verify from factory authenticity I do as a matter of fact I have the distributor ship direct from SKF. SKF will pay for shipping for a direct distributor
 
I was contracted as a moldmaker only to find all molds are now made in China. I was disappointed in that as I was a very experienced as a toolmaker before becoming an engineer. I lost that job for being too slow. Because I took it upon myself to make sure the assembly functioned after assembly and that would not cut the inspector. I came from the old culture that you never passed in a job that would cut the inspector unless the edge was not required to be knife edge.
 
Again just bringing up changes. Like i could not imagine buying a bike years ago from. India. Yes Ktm has its duke lines of bikes being built in India and in future
adding street Husqvarnas to the production line
 
I looking at having some made up. Removing the any poly cages, having new cages made. Maybe ceramic balls. So far looking
not bad on price. No bad but more expensive. Been having race and bearing guy look at why husqvarna is using this bearing in first place
as he has engines with twice the horsepower and 50% more rpm running single row.

if i go back to old day as QC guy, overing engineering this bearing may be a way to reinforece the using of the magnesium cases. Which is not a bad idea
at all. So in 80s bikes with have two 6205 in left and wide 3205 in right. That right their is a lot of reinforement - lots. Also its a great back up to the production line as the inline boring done at the same time on both sides of cases would also be great idea. I really like it.

Think about that again, big two bearings on right and big wide one piece ( one bearing with two rows of balls) on right. Thats strong !
 
By the way all this is not for performace. This is all for preserving are Huskies. And preserving our mag cases.

As talking to Kennie Buchanan ( rim and Spoke people ) last year at barber he was very worried about serveral vintage bikes that still used old Magnesium
hubs. They just cant handle aging and the stress anymore.

But good news on mag cases - the late 70s and early 80s vintage formula 1 cases for tranmissions are holding up well, when cared for. ( lucky to be in Austin tx
for the old vintage F1 races ) Basically sealing inside and out any exposed mag to air and moisture.

I am just worried once we lose are backlog of good used bikes and cases. You know what I mean
 
Having that looked at just to have options. I have 3 3205 E C3 here to use. Max capacity SKF made by
MRC for SKF in Ohio. This is is the one that is disappearing off bearing distribitors order list.


But just like the Uptite owner guy many 3205 are in shops and warehouses there for us to install.
 
Bigbill said:
Is there a thinner ball bearing then the 3205 we're we can install two if they add up to the same width?

I have crank bearings inhouse for eight engines. That's late 70's to early 80's. Time to order more.
Click to expand...

When the owner of the 250CR ordered his crank bearings from Phillip, he he was supposed to get 2 narrow bearings for the left but he was sent (2) 3205 bearing to use for both right and left. There were 5205 in both cases so I know it is the same requirement in each case. The point was that Phillip has 2 narrow bearing to be used in the left case so I was surprised he ended up with 3205 for both
 
Bigbill said:
The older late 70's cases take the 3205 bearings.(2) the later, newer cases take the 3205 bearing on the ignition side only. With the twin bearings on the output crank side.

I'm not sure how often we need to change the left side crank bearings since there in gear oil they show no sign of wear when I check them.

I'm still wondering if static balancing the crank assembly is worth doing. It should smooth out a big bore right?
Click to expand...
what do you mean when you say static balance? measure and eliminate runout?
 
WELL POOP [ BUT HAY IM WORKIN ON IT ] SO WER TALKIN BEARING ! WHO KNOWS THE NUMBER FOR THAT LITTLE CAGED NEEDLE JOB THE KICK START GEAR SPINS ON THE LITTLE S.OB. WENT AWOL ON ME
 
Just is case here is the number. K16x20x10 this is the INA number.
I have seen additional letter in front with other manufacters.

I have big boxes of them if need two. Replace them often.
 
Bigbill said:
Balance the crank by removing weight until it's balanced. One side of the crank assembly will be heavier then the other. The crank will stop turning with the heavy down on the bottom. They drill holes to remove the extra weight till it doesn't stop turning and stopping in the same spot. Static balance. I believe this is the way they do it.

The runout should be within specs.
Click to expand...

Properly constructed there would be no runout in the crank. I do recall that making the crank cheek diameters concentric to the stub ends eliminated much of the vibration in a 400WR LC. After that there was no reason to add balance holes. The con rod for the 1987 430 is lighter than previous to minimize vibration.
 
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