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Tractor Talk Discussion Forum

Loctite

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stan

03-19-2004 23:02:42




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I removed the final drive on my JD 5020. I found the outer wheel bearing has spun on the axel shaft. Not very much but it is not a press fit on the shaft anymore. Do you think Loctite will hold the bearing from spinning?




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Bob

03-20-2004 09:09:48




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 Re: Loctite in reply to stan, 03-19-2004 23:02:42  
Welding, punching and peening the axle shaft would not be a good idea because of the chance of the axle breaking afterwards, and that is not a fun thing when you're driving the tractor!

Deere has a fix for you problem, assuming is has not been done before. They have a new bearing cone with the inside diameter a few thousandths less than the original. You have the shaft ground down to the new specs. at a machine shop (crankshaft grinder) and use the new bearing (JD10003, about $51.00).

If the shaft has been ground down already, there SHOULD be a "star" on the outer face of the axle shaft, hand-stamped with a chisel.

I'm not ABSOLUTELY sure this fix applies to all serial numbers. Check with a Deere partsman.

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S. Conner

03-20-2004 09:03:58




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 Re: Loctite in reply to stan, 03-19-2004 23:02:42  
If it were me, I'd take the shaft to a machine shop and have it built up and turned back down. The place I used to work at had a spray welder and it was great for building up worn shafts. All you had to do was undercut the worn area to rough it up a bit then heat the part to a certain temperature. I used temp. sticks to check this before starting to spray. You have to keep from getting it too hot also. Had another temp. stick to check this. Let it cool and turn it back to original diameter. It's a slow process but it will hold up as long as a new shaft would. Loctite is good but some of their products are more of a band-aid than a permanent fix.

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Earl S.

03-20-2004 08:40:45




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 Re: Loctite in reply to stan, 03-19-2004 23:02:42  
Loctite is a great product. Loctite only fails when the wrong product is used or the user fails to follow directions.You cannot skip anything they tell you to do . Right temp rating ,cleaning and prep, curing.I just talked to a warehouse yesterday to find one of their products and he tells me he has to buy case lots and shelf life is important, so that is why it is hard to find the correct product for correct application. Earl In Illinois

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ErnieD

03-20-2004 07:20:20




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 Re: Loctite in reply to stan, 03-19-2004 23:02:42  
Take the shaft and have it built up with metal. There is a process that uses a oxy acet torch that spray deposits metal. The shaft is put in a lathe and slowly turned while the metal is applied. You would trust that repair much better than the others when you start making that big deere talk.



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Russ

03-20-2004 07:14:54




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 Re: Loctite in reply to stan, 03-19-2004 23:02:42  
I would lightly peen the shaft in the worn area and then use locktite. The peening will hold the race in place while the locktite sets up, good luck!



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ted

03-20-2004 06:22:02




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 Re: Loctite in reply to stan, 03-19-2004 23:02:42  
You may be able to get by with just peening the shaft with a punch if it is only slightly wore.



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ted

03-20-2004 06:24:28




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 Re: Re: Loctite in reply to ted, 03-20-2004 06:22:02  
Sorry, didn't read good enough. I wouldn't do this on a final drive.



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Rod (NH)

03-20-2004 05:48:36




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 Re: Loctite in reply to stan, 03-19-2004 23:02:42  
Hi Stan,

Yes, if you use the correct Loctite product, you can compensate for that wear. Retaining Compound RC-620 is made for just the purpose you describe. I've used it to retain a front steering spindle ball bearing inner race very successfully, among other things. It's a great product. Just follow all instruction and be very sure that the mating surfaces are completely degreased.

third party image Rod

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bob

03-20-2004 00:28:41




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 Re: Loctite in reply to stan, 03-19-2004 23:02:42  
You might try Seal Retainer. It is made by loctite. It comes in a small tube and is pricey. I uused it to hold bearings on a front axle on a riding mower and it worked but I dont know about something that big and heavy.



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Bill Smith

03-19-2004 23:49:42




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 Re: Loctite in reply to stan, 03-19-2004 23:02:42  
I don't believe I would use loctite to hold a bearing race. Just my 2 cents.



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