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Kevin01 
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Joined: 13 Mar 2023
Location: Twisp
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 Topic: Pinion Shaft Bearing
Posted: 13 Mar 2023 at 10:04pm |
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Just got a 1964 I-40 Allis Chalmers tractor and I have lost the outer bearing on the axel shaft and I can’t find the s/n for the machine and I have now clue what bearing I need. Any suggestions? Thanks.
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DiyDave
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Joined: 11 Sep 2009
Location: Gambrills, MD
Points: 55293
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Posted: 14 Mar 2023 at 4:44am |
Welcome to the forum. Serial number is on the the torque tube, carb side. Same tractor as D-10/12... Scroll down in the link for picture... 
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Source: Babylon Bee. Sponsored by BRAWNDO, its got what you need!
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steve(ill)
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Joined: 11 Sep 2009
Location: illinois
Points: 90846
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Posted: 14 Mar 2023 at 8:47am |
Ii think the I40 should be the same rear end as a D12 (?) ..... here are the part numbers, you might compare the SIZE.
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Like them all, but love the "B"s.
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steve(ill)
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Location: illinois
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Posted: 14 Mar 2023 at 12:27pm |
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Kevin, i was hoping someone with some better info would jump in here and answer.. I dont see these two ALLIS part numbers being cross referenced to a Name Brand Bearing anywhere on GOOGLE.... Do you have an ID or an OD for the bearing... or is there a number etched on the races ? ... If your going to an ALLIS Dealer, thats different.
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Like them all, but love the "B"s.
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Kevin01
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Location: Twisp
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Posted: 14 Mar 2023 at 11:08pm |
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Steve,
I found the bearing I needed. I was able to pull it off the axel and get numbers off of it. So I’m a week I should have this up and running again. Thanks for the response.
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AC720Man
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Joined: 10 Oct 2016
Location: Shenandoah, Va
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Posted: 15 Mar 2023 at 6:52am |
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You didn’t mention replacing the seal, perfect time to replace it. Are you replacing the axle bearing or pinion shaft bearing?
Edited by AC720Man - 15 Mar 2023 at 6:57am
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1968 B-208, 1976 720 (2 of them)Danco brush hog, single bottom plow,52" snow thrower, belly mower,rear tine tiller, rear blade, front blade, 57"sickle bar,1983 917 hydro, 1968 7hp sno-bee, 1968 190XTD
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steve(ill)
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Location: illinois
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Posted: 15 Mar 2023 at 8:22am |
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Kevin... when you get time, post the bearing number for others reference..
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Like them all, but love the "B"s.
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Kevin01
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Posted: 21 Mar 2023 at 7:49pm |
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Steve,
So I put the new outer pinion bearing on and drove for about 5 minutes and totally destroyed the new bearing. Pulled the outer inspection cap off and flashed a flashlight into the axel housing and I think the inner bearing is gone. My nightmare came true and now I’m going have to pull the whole axel housing off the tractor. Fun
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Kevin01
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Posted: 21 Mar 2023 at 7:52pm |
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The part number for the bearing is (br14139) and the race is (br14276)
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