[TowerTalk] Lockwasher Comparison

[Bob K6UJ]

FWIW,  I retired from Chevron after 28 years.  Worked in three of their 
oil refineries and
the last 7 years at their Research Center in Richmond, CA.
On mechanical fasteners used on vibrating machinery, pumps, compressors, 
etc.  Red locktite
was the standard along with proper torquing.  It should be mentioned in 
this discussion that
you should find the correct torque specification and use a torque wrench 
to tighten the
bolted connections too.  Red locktite and proper torquing should give 
you positive results on all
but the most severe connections.  Having said that, I am impressed with 
the NordLock washers
and am trying them out on my Orion 2800. From what I learned they should 
be the ultimate in locking.
I will report back in about 10 years and let you know how my OR 2800 
bolts are doing. :-)

Bob
K6UJ


On 7/27/16 12:25 AM, Roger (K8RI) on TT wrote:
> I'm referring to major industries, like chemical plants, Petroleum 
> industry, etc, not companies that sell to consumers.
>
> 73
>
> Roger (K8RI)
>
>
> On 7/27/2016 Wednesday 12:33 AM, Jim Thomson wrote:
>> Date: Tue, 26 Jul 2016 15:52:16 -0400
>> From: "Roger (K8RI) on TT" <K8RI-on-TowerTalk at tm.net>
>> To: towertalk at contesting.com
>> Subject: Re: [TowerTalk] Lockwasher Comparison
>>
>> For you, or us on a small scale (and time to make sure the bolts are
>> clean), it may be, but apparently for industry, it's not.
>>
>> 73
>>
>> Roger (K8RI)
>>
>> ##  say what ?   Blue loctite is used all the time in the automotive 
>> and race car world.  Put blue
>> loctite on the  6 x  .375  SS  bolts that hold an OR-2800  rotor to 
>> the rotor plate...and  you wont be
>> having bolts coming loose anytime soon.   I used blue loctite in 
>> loads of places on my Roush mustang,
>> nothing comes loose... including the new one piece AL 
>> driveshaft..which spins at 6500 rpm.
>> Plenty of local folks here in town also use Red loctite  for 
>> automotive applications.
>> Purple loctite is weaker than blue loctite, and is another 
>> alternative.  Red is the strongest.
>>
>> ##  I would not use red loctite for small stuff like machine screw 
>> size.... otherwise you will never get em out, they will
>> be as good as welded into place.
>>
>> ##  UST  uses  nylocks for all   22  pulleys  used on my HDX-689.   
>> Non of them loosen up.   Between  nylocks and
>> blue / purple  loctite, you are covered.
>>
>> Jim   VE7RF
>> _______________________________________________
>>
>>
>>
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>
>