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Washer at the top

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pastormac62

Joined: 07 Sep 2015
Posts: 71
Location: Indiana

Posted: Mon Apr 03, 2017 12:16 pm Post 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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bakerocb

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

Posted: Mon Apr 03, 2017 7:17 pm Post subject: Washer at the top

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

- The Matronics KIS-List Email Forum -

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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galinhdz(at)gmail.com
Guest

Posted: Tue Apr 04, 2017 1:46 pm Post subject: 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 		 	 [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!

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 To our success, Stephen McIntosh 

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bakerocb

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

Posted: Tue Apr 04, 2017 7:19 pm Post subject: Washer at the top

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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