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Washer at the top

 
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pastormac62



Joined: 07 Sep 2015
Posts: 71
Location: Indiana

PostPosted: Mon Apr 03, 2017 12:16 pm    Post subject: Washer at the top Reply with quote

Hi Guys,
I finally received my Belleville washers! Do I need a washer at the top. I included two pics. I noticed my noise gear is wearing where the washers go on.
Thanks!
To our success, Stephen McIntosh


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bakerocb



Joined: 15 Jan 2006
Posts: 727
Location: FAIRFAX VA

PostPosted: Mon Apr 03, 2017 7:17 pm    Post subject: Washer at the top Reply with quote

4/3/2017

Hello Steve, I think that it is very desirable to have a thin flat nylon
washer next to the aluminum shoe both on the top and the bottom.

OC

================================

From: pastormac(at)comcast.net
Sent: Monday, April 03, 2017 4:15 PM
To: kis-list(at)matronics.com
Subject: Washer at the top

Hi Guys,
I finally received my Belleville washers! Do I need a washer at the top. I
included two pics. I noticed my noise gear is wearing where the washers go
on.
Thanks!


To our success, Stephen McIntosh


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galinhdz(at)gmail.com
Guest





PostPosted: Tue Apr 04, 2017 1:46 pm    Post subject: Washer at the top Reply with quote

Doesn't that affect the friction adjustment so it won't maintain the 27lbs break-out?

Virus-free. www.avg.com [url=#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2][/url]

On Mon, Apr 3, 2017 at 11:17 PM, Owen Baker <bakerocb(at)cox.net (bakerocb(at)cox.net)> wrote:
Quote:
--> KIS-List message posted by: "Owen Baker " <bakerocb(at)cox.net (bakerocb(at)cox.net)>

4/3/2017

Hello Steve, I think that it is very desirable to have a thin flat nylon washer next to the aluminum shoe both on the top and the bottom.

OC

=======

From: pastormac(at)comcast.net (pastormac(at)comcast.net)
Sent: Monday, April 03, 2017 4:15 PM
To: kis-list(at)matronics.com (kis-list(at)matronics.com)
Subject: Washer at the top

Hi Guys,
I finally received my Belleville washers!  Do I need a washer at the top. I included two pics. I noticed my noise gear is wearing where the washers go on.
Thanks!
















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bakerocb



Joined: 15 Jan 2006
Posts: 727
Location: FAIRFAX VA

PostPosted: Tue Apr 04, 2017 7:19 pm    Post subject: Washer at the top Reply with quote

4/4/2017

Hello Galin and Steve, Galin questioned the use of a nylon washer adjacent to the top and bottom of the aluminum nose wheel shoe in the stack up for a KIS TR-1 nose landing gear.

Please see the attached picture 2016-4-18A 009. It shows the stack up consisting of just nylon washers and a flat steel washer (next to the nut) that I used for over 500 flight hours on my Lyle #1 nose landing gear strut with no shimmy problems.

Whether you are using nylon washers or Belleville washers the friction created is still dependent upon how tightly the nut is torqued. One may have to torque the nut to a higher value in order to obtain the 27 pound pull at the axle for the nylon washers instead of the Belleville washers, but the resulting anti shimmy friction is initially still the same.

I believe that there are some advantages to using nylon washers instead of Belleville washers:

1) The nylon washers will not wear as rapidly as the steel-on-steel or steel-on-aluminum Belleville washers therefore one does not have to recheck / adjust the friction setting as often.

2) Nylon washers adjacent to the aluminum shoe will not wear the shoe as rapidly as steel Belleville washers adjacent to the aluminum.

Any questions?

OC

PS: The full thickness AN310-12 castle nut appears in the attached picture only because I was trying to show its depth compared to the thinner AN320-12 nut intended for shear use only. I was unable to use the AN310-12 nut on my Lyle #1 gear because of the shortness of the 3/4 inch diameter vertical stub. I had Lyle make the 3/4 inch diameter vertical stub portion of my #2 and #3 gear weldment longer so that I could use the full depth AN310-12 nut. I would have preferred even more length for that stub, but Lyle declined.

=======================================

From: Galin Hernandez (galinhdz(at)gmail.com)
Sent: Tuesday, April 04, 2017 5:39 PM
To: kis-list(at)matronics.com (kis-list(at)matronics.com)
Subject: Re: Washer at the top


Doesn't that affect the friction adjustment so it won't maintain the 27lbs break-out?

Virus-free. www.avg.com




=================================
On Mon, Apr 3, 2017 at 11:17 PM, Owen Baker <bakerocb(at)cox.net (bakerocb(at)cox.net)> wrote:
Quote:
--> KIS-List message posted by: "Owen Baker " <bakerocb(at)cox.net (bakerocb(at)cox.net)>

4/3/2017

Hello Steve, I think that it is very desirable to have a thin flat nylon washer next to the aluminum shoe both on the top and the bottom.

OC



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Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

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