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4x4M38
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RICKG
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 Posted: Thu Dec 08, 2016 1:40 pm Post subject: |
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keep 'em rollin'
RICKG MC 51986 DOD 01-52, '50 CJ3a |
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rgmutchler
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4x4M38
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Derstrom
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| Posted: Sat Dec 10, 2016 3:35 pm Post subject: |
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| I literally just did that.... Put the shaft on the front porch and heated up the bearing. Got the "stinkeye" from momma for putting a bearing in her microwave but it went on pretty easy. |
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4x4M38
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wesk
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southpw
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| Posted: Sun Dec 11, 2016 6:39 am Post subject: |
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You guys are going about it all wrong.
The proper way is to grind the inner diameter of the bearing with a die grinder until a minimum of .072" clearance to the shaft. 
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1952 M38 project
Brad |
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4x4M38
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wesk
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| Posted: Sun Dec 11, 2016 1:36 pm Post subject: |
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Before grinding do verify the type fit specified for the bearing in that application.
| Quote: | There are three general categories of fits:
1 - Clearance fits for when it may be desirable for the shaft to rotate or slide freely within the hole.
2 - Transition fits for when it is desirable that the shaft to be held precisely, yet not so tightly that it cannot be disassembled, this is usually referred to as a Location or Transition fit.
3 - Interference fits, for when it is desirable for the shaft to be securely held within the hole and it is acceptable that some force be necessary for assembly.
Within each category of fit there are several classes ranging from high precision and narrow tolerance (allowance) to lower precision and wider tolerance. The choice of fit is dictated first by the use and secondly by the manufacturability of the parts. Fits may be specified according to the standards of Geometric dimensioning and tolerancing. |
Most of the preferred dimensions are listed in the appropriate Powertrain, Body & frame Manual under Repair and Rebuild standards in either TM 9-1804B or TM 9-8015-2.
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Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100
Mjeeps photo album: http://www.willysmjeeps.com/v2/modules.php?set_albumName=Wes-Knettle&op=modload&name=gallery&file=index&include=view_album.php |
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Derstrom
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Joined: May 23, 2016
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| Posted: Sun Dec 11, 2016 6:41 pm Post subject: |
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| Wrap the Bearing in a wet paper towel. Microwave on high until the steam flashes inside, about 1 minute. As long as the towel stays wet, it won't arc and it won't get hotter than 200 deg f. It's efficient and effective. |
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