[Spridgets] Fwd: [Mgs] Spring washers don't work !

Allen Hefner lbc77mg at gmail.com
Thu Jun 23 09:11:39 MDT 2011


And they ain't cheep!

http://www.grainger.com/Grainger/NORDLOCK-Lock-Washer-5RUX9?Pid=search

$377 for 200 1/4" washers.  And you need two per bolt.  That's $3.77 per
application.  "We tight" club members need not apply.

They are made in Sweden, so I guess you need a Saab to properly qualify.

 Allen Hefner
Norristown, PA

*Current:*
2006 Chebbie
*Former:*
1963 Sunbeam Alpine Series III
1967 Triumph TR4A IRS
1964 VW Type I
1967 VW Type II
1967 Rover 2000TC
1977 MG Midget



On Wed, Jun 22, 2011 at 5:13 PM, Duncan Sinclair <
pondhopautomation at gmail.com> wrote:

> The Nordlock washers shown here are pretty much industry standard in the
> oil
> industry. They work excellent.
> Different principle from a spring washer but very simple.
> They are the only type approved for secondary retention on overhead loads
> offshore.
>
> Thanks
> Duncan
>
>
> -----Original Message-----
> From: spridgets-bounces at autox.team.net
> [mailto:spridgets-bounces at autox.team.net] On Behalf Of derf
> Sent: Wednesday, June 22, 2011 3:04 PM
> To: Woerpel
> Cc: SPRIDGETS
> Subject: Re: [Spridgets] Fwd: [Mgs] Spring washers don't work !
>
> OK, here's a pic of a "Junker Test" setup.  It holds the bolt head
> stationary and only moves 1/2 of the bolted joint.
> In situations similar to that in the real world (like on a Spridget) I
> think
> we use Castellated nuts.
>
> I can't think of a real world situation that is similar to the "Junker
> Test".  Does anyone know of one?
> I wonder how the "Junker Test" does with chemical bonds (Loctite), and
> other
> forms of mechanical lock washers, besides the ones the video producers are
> trying to sell.
>
> http://mdmetric.com/nordlock/Nord-Lock%20-%20Junker%20test%20principle.htm
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