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Author Topic: Crank Bearings  (Read 3349 times)

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Offline jmester

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Crank Bearings
« on: August 06, 2013, 09:44:22 am »
This is to try and make a list of crank bearings that can be gotten outside of oe. we all know how expensive they can be.

*SKF explorer 6202 Jem Metal cage = Stihl part #9503 003 0346  Models-034,036,044,046,440,460,461- Flywheel side
                                                       = Husky part #738 22 02-25  Models-371xp,372xp,346xp. used as both fly and clutch on some models.

*Also based on my measurements they should also work on stihl model-021,023,025,038,041,042,048,210,230,250,251.
  sthil has them listed as a different part number.   

*Stihl 660 clutch side is oem only. that is what my bearing place said, they are only for sale in japan. Part #9523 003 4555

*SKF explorer 6203 Jem metal cage = Stihl part #9503 003 6676 Models-066,084,088,650,660,880-Flywheel side.

That is all i have for now will post more as i find out, if any one else has numbers feel free to post away. hope this helps, thanks
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Offline mweba

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Re: Crank Bearings.
« Reply #1 on: August 06, 2013, 08:15:34 pm »
Would it be wise to add seals to this thread as well or start a separate one? 
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Offline Cut4fun .

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Re: Crank Bearings.
« Reply #2 on: August 06, 2013, 08:32:15 pm »
I would do bearing and seals in separate threads.  JMO. 

You guys doing it do what you want. I can fix it if need be when needed if you want.

Great Ideas.
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Offline Al Smith

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Re: Crank Bearings.
« Reply #3 on: August 07, 2013, 09:07:20 pm »
What you will find if you really delve into it is the design of most Stihls The transistion from the crank to the output shaft is radiused rather than a square corner .As such it is a much sronger crank shaft but because of design requires also a radiused internal bearing .Of which specically Stihl owns the entire rights to from every reputable bearing manufacturer in the world .
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Offline jmester

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Re: Crank Bearings.
« Reply #4 on: August 09, 2013, 08:04:14 pm »
So you are saying that you can only run oe crank bearing, or am I missing what you are saying.
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Offline Al Smith

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Re: Crank Bearings.
« Reply #5 on: August 09, 2013, 09:47:54 pm »
No what I'm saying is sometimes a standard metric bearing will fit on the flywheel side .However often is the case that the clutch side takes a specially  cut bearing .That bearing as to it's manufacture from any bearing manufactures such as FAG,SKF ,Fafnir etc is controlled by Stihl by patent rights .

Ths is not to say that somebody else might have copied it .I do know this if you take that bearing number to any bearing warehouse such as Dixie Bearing ,Kaman Bearing etc it cannot be ordered and sold directly to you .You must go through a dealer.

Just as a tid bit of information this type of controll of repair parts is not Stihls great idea ,Having worked around German made machine tools it seems to be standard a  operating practice on a majority of stuff originating from Germany .
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Offline jmester

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Re: Crank Bearings.
« Reply #6 on: August 10, 2013, 10:06:35 am »
I am following along now. That is why they told me no dice on the clutch side bearing. At least we can get the flywheel side at a reasonable price.
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Offline Cut4fun .

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Re: Crank Bearings.
« Reply #7 on: August 10, 2013, 10:29:33 am »
I noticed my poulan 330 3750 etc etc rebuilds used the same bearing as the 372 rebuilds. About $10 difference per bearing.   ;)
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Offline 660magnum

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Re: Crank Bearings.
« Reply #8 on: August 10, 2013, 11:30:02 am »
The 6202 is probably the most popular crank bearing in a chainsaw
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Offline Al Smith

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Re: Crank Bearings.
« Reply #9 on: August 10, 2013, 04:26:48 pm »
FWIW I have the master interchange book of bearings and seals published by Bearings Inc .If the number of the OEM is in that book they can be ordered .If not it's OEM only .

I've been down this road and highly annoyed about paying the price but have just bitten the bullet after many  dead end streets so to speak .

Husqvarna on the other hand builds stuff like US manufacturers using mostly standard  off the shelf parts .
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