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John Deere Tractors Discussion Forum
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Help on bearing cup removal in a housing

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50man

07-26-2003 08:30:23




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I am getting ready to assemble my shafts that run from the governor to the fan on my 50 with power steering. I have new bearings that go on the gov. end on both sides of the crankcase vent pump. What's the best way to remove the old bearing cups from these or any other housings when there is no way to drive from the back side?I've heard to weld on the old cup and the cooling action will make them come out.....any thoughts?

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Clooney

07-26-2003 19:03:13




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 Re: Help on bearing cup removal in a housing in reply to 50man, 07-26-2003 08:30:23  
50man, as Frank said a little weld in side the bearing race [you only need a couple of short beads] works good. ~What I have found works the best for me is to either weld a thick washer or short strap inside the race using a few short tacks, then when it cools & shrinks the race will usually fall out. With that washer or strap welded in there you then have the option of using a long rod to drive it from the rear or tacking on a nut & using a slide hammer from the front. Try the washer trick & I think you will find it works good..

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F-I-T

07-26-2003 09:04:30




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 Re: Help on bearing cup removal in a housing in reply to 50man, 07-26-2003 08:30:23  
50 man:

The welding thing works. Just put a nice bead in an arc, maybe a third way around, right where the balls ran, and when it cools, it will "pull" the bearing about its circumference and the overall circumference will shrink. Just make sure there not any parts in the area of the weld that may be damaged by heat.

Frank



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