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axle collars on landing gear

Posted: Wed Jun 03, 2009 1:47 pm
by vampsqu
'The F-24 I have been working on has a non-tapered axle and it
had a simple cast aluminum collar with a cross bolt to retain it
on the axle. The single remaining oregional one is full of cracks,
streached internaly and useless except as a pattern perhaps.
What is the general concensus on how to construct a replacement ?
Machine one from solid steel rod in lathe ? Use a big rod of 2024
aluminum? Aluminum sand casting ? (it COULDN'T be strong enough)
can't really immagine forgeing one in aluminum ..... :-)

I havn't had any luck finding seamless steel tube having an exact
1.500 inch ID AND a relatively thick wall ( like 1/4 inch)

My thought was to cut something out in lathe in steel or aluminum
and then weld on the threaded blocks which hold the wheel pants.

Any thoughts ?????

Tim'

Re: axle collars on landing gear

Posted: Wed Jun 03, 2009 6:38 pm
by David Stroud
'Cracks are easy to fix, Tim. Is there enough meat in the bore to sleeve it through it's length ?

David Stroud Ottawa, Canada
Christavia C-FDWS
Fairchild 51 replica
under construction C-FYXV
----- Original Message -----
From: vampsqu
To: fairchildclub@yahoogroups.com
Sent: Wednesday, June 03, 2009 1:31 AM
Subject: [fairchildclub] axle collars on landing gear





The F-24 I have been working on has a non-tapered axle and it
had a simple cast aluminum collar with a cross bolt to retain it
on the axle. The single remaining oregional one is full of cracks,
streached internaly and useless except as a pattern perhaps.
What is the general concensus on how to construct a replacement ?
Machine one from solid steel rod in lathe ? Use a big rod of 2024
aluminum? Aluminum sand casting ? (it COULDN'T be strong enough)
can't really immagine forgeing one in aluminum ..... :-)

I havn't had any luck finding seamless steel tube having an exact
1.500 inch ID AND a relatively thick wall ( like 1/4 inch)

My thought was to cut something out in lathe in steel or aluminum
and then weld on the threaded blocks which hold the wheel pants.

Any thoughts ?????

Tim






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