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Bearing for jack screw
http://thorp18.com/thorpforum/viewtopic.php?f=4&t=7207		 Page 1 of 1
Author:  ljkrume [ Thu Jan 24, 2013 3:37 pm ]
Post subject:  Bearing for jack screw
Anyone tried to located a source for the self-aligning bearing on the jack screw? I hope no one is using the standard type - it needs to move a little. Drawing #701 calls for Fafnir K55. 3/8" ID, 7/8" OD, 1/4" Wide. Mine has axial play which of course shows up on the tabs (not good). I've heard some put a nylon shim behind the head of the screw, but would rather get a new bearing. I'm workin hard at all the rest too. Thanks in advance...

Les Krumel,
Albuquerque
Author:  stug [ Thu Jan 24, 2013 3:54 pm ]
Post subject:  Re: Bearing for jack screw
Les try Aircraft Spruce I think the equivalent bearing is
KS SERIES BEARINGS MS27645-6A
Part # KS6A
Author:  bjwest [ Thu Jan 24, 2013 8:15 pm ]
Post subject:  Re: Bearing for jack screw
Les I just got one from Aircraft Spruce. You still need a shim behind the new one, there is about .030 inch axial play in the new one.
Brian
Author:  jrevens [ Fri Jan 25, 2013 2:41 pm ]
Post subject:  Re: Bearing for jack screw
Les,

Shimming, usually with a thin disc cut from plastic, has been necessary "forever". A new bearing will not eliminate the small amount of axial play.
Author:  James Grahn [ Sat Jan 26, 2013 12:11 am ]
Post subject:  Re: Bearing for jack screw
I'm sure Mike has some as well
Cubes
Author:  dickwolff [ Sun Jan 27, 2013 8:56 am ]
Post subject:  Re: Bearing for jack screw
I bought a couple from a guy in BC who had a bunch of a/c surplus inventory. That was three years ago. Not sure if he's still around. His company was Aero Dynamic Solutions, I think.
Tony Jensen
aerodyna@island.net
250-956-2233

I have a spare. PM me if interested.
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