Rebuilding Jacobsen 626, needle bearing numbers 343470 - Snowblower Forum : Snow Blower Forums
 
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post #1 of 4 Old 04-04-2014, 06:06 PM Thread Starter
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Rebuilding Jacobsen 626, needle bearing numbers 343470

I'm going through a Jacobsen 626 Mod.52638 I found the pinion and sprocket assembly rocking on it's shaft and had dug into the shaft badly. Tracking down the bearing that should go in there was a chore but should someone else need them here you go. The needle bearings are part number 343470 or JA343470. They cross over to MTD P/N 941-0349 which is what I ordered. What I received was a SCE1011-P which is also a BP1011.
Likely used on MTDs as well.
They are readily available and you should be able to find them for under $10 each on Amazon, Ebay or a bearing supplier.

They do have a SEAL AT ONE END. You need to pay attention as once you press or carefully pound them in you don't want to have to try and remove them to get the seals facing outward.
I measured the bearing and the OD is .813, I used a metric socket that was a bit smaller and it worked great for pounding the broken shells out. They are a tight fit and you need to hit it pretty hard to get them out.

Someone destroyed the bearings before me and tried to use a bushing in there. Might have been ok if they greased it but it was a half way measure and the cause of the damage to the shaft that I had to fabricate new for the gear cluster to ride on.



In the photo below you can see the green seal lip on the top bearing and inside the end of the first bearing and the start of the second. Would like to add a way to grease it but there isn't room between the two bearings.

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Make sure the windows are up before the snow plow goes by !!

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Last edited by Kiss4aFrog; 05-01-2014 at 08:22 PM.
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post #2 of 4 Old 04-05-2014, 10:14 PM
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Question

They ought to make a sticky thread for stuff like this?
It might make it easier to find for someone in the future.

How come they don't have a forum for Jacobsen?


I asked this question before too, or am I missing the how to part?

How come you can't add tags to threads.
I asked a little louder this time.

I hate shoveling SNOW!
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***********************
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5 Horse, Tecumseh HSSK50-67392S
22" Dual Stage
***********************
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4 Horse (orig) Briggs & Stratton#6305201
22" Dual Stage
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post #3 of 4 Old 04-05-2014, 10:44 PM Thread Starter
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Well it's more than self promotion. I figure if I had to go through all the sites I did just to get crossovers for the bearing number I'd stick something up that's searchable.

Sure beats doing what the previous guy did and just jamming a chunk of brass bushing in there to try and get a few more uses out of it.
Just finished putting it back together with the rebuilt cluster, new shaft and some 5/8" stainless steel washers for spacers and thrust washers this evening. It's my $15 dollar blower. Soaked the drive chain in oil and freed up a couple stiff links.
Still need to figure out what's wrong with it's engine (no start, head off) and will likely need to substitute something for the wheel axle bushings as I can't find anything original to replace the loose ones I have. Oh well, I have all summer and I knew it was a "project" when I bought it.

Don't think there is a Jacobsen forum as they were not as popular as others. I don't know how hard it would be to start one but there are a couple of models I think they should add like Hahn, Jacobsen, International, Dynamark ...
But if you search with the brand name it does pop up the related threads.

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Last edited by Kiss4aFrog; 04-07-2014 at 08:47 PM.
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post #4 of 4 Old 04-05-2014, 11:11 PM
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Heck....with all the machines you have, you can take all winter too.
Thanks for taking the time to post/////share.

You know what a tag is?
Anyone know what tagging a thread is?

I hate shoveling SNOW!
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***********************
Craftsman #536886141(Around 2000?)
5 Horse, Tecumseh HSSK50-67392S
22" Dual Stage
***********************
"Classic" 1963 S-226 Snowbird
4 Horse (orig) Briggs & Stratton#6305201
22" Dual Stage
***********************
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