Re: Destructive Lock Nuts Suck

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Sujet : Re: Destructive Lock Nuts Suck
De : none (at) *nospam* none.com99 (Bob La Londe)
Groupes : rec.crafts.metalworking
Date : 14. Apr 2024, 01:21:31
Autres entêtes
Organisation : A noiseless patient Spider
Message-ID : <uvf7ia$38u8j$1@dont-email.me>
References : 1 2 3 4 5 6 7 8 9
User-Agent : Mozilla Thunderbird
On 4/13/2024 3:16 PM, Joe Gwinn wrote:
On Sat, 13 Apr 2024 11:45:50 -0700, Bob La Londe <none@none.com99>
wrote:
 
On 4/13/2024 11:25 AM, Joe Gwinn wrote:
On Sat, 13 Apr 2024 08:05:57 -0400, "Jim Wilkins"
<muratlanne@gmail.com> wrote:
>
"Snag"  wrote in message news:uvcbh7$2jb8r$1@dont-email.me...
>
On 4/12/2024 5:01 PM, Joe Gwinn wrote:
On Fri, 12 Apr 2024 13:36:58 -0700, Bob La Londe <none@none.com99>
wrote:
>
>
You probably want a bronze or stainless steel Drake two-piece Lock
Nut:
>
.<https://www.lok-mor.com/products/free-spinning/drake/>
>
Joe Gwinn
>
>
Looks a lot like a 40 dollar solution for a 2 dollar problem , Joe ...
Snag
>
------------------------------------
I look for reliable methods using easily available hardware or auto store
products, such as doubled nuts. If necessary they can be modified on the
lathe or drilled for safety wire.
>
The OP was complaining that nothing he tried really worked, causing
danger to man and beast, and not so much about the cost of the
hardware, and Drake Nuts are the gold standard.  They simply don't
shake loose.  Finger tight causes noticeable locking.
>
Failing that, I'd try a thick nut and a jam nut tightened hard against
one another.  And Loctite don't hurt.  I recall from a study I read
that one puts the jam nut under the thick nut for best shake
resistance.  Lok-Mor may have the study I recall, or it was an old
NASA study.
>
Joe Gwinn
>
Well, I didn't actually say that.
 True, not those words, but this:
 "Somewhere on a long flat Southwest of Globe/Miami I glanced in the
mirror to see one of the hooks for a front strap laying on the trailer
deck. The strap broke where it went over the frame.  Fortunately I had
left the winch cable tight or I might have lost the truck."
 Losing the truck on the highway is likely to cause a accident, and
maybe a double accident (the departing truck may go sidewise,
destabilizing the truck pulling or carrying everything). Free-range
rolling truck tires are bad enough.  Bloodcurdling.
 This would have terrified me for sure.
 
.... Just that two of the nuts came off
for no good reason.  I did install regular Gr-8 nuts and lock washers
with red Permatex thread locker to finish my adventure.  Afterwards it
made the trip up up to Globe/Miami over the mountains, down and back up
through Salt River Canyon, and then on up and down the grades into Show
Low.  There I loaded a full size 3/4 ton diesel pickup and made the
reverse trip braking and engine braking up and down some modestly steep
inclines.  Enough so that there were brake check areas and emergency
runaway pullouts.
>
This morning I ordered a box of each of gr-8 lock washers and nuts.  The
cost of which was about the same (a little less) as the couple items I
bought at the Tractor Supply store in Coolidge to make repairs.  Before
I make another such trip I'll be replacing all the lock nuts with
regular GR-8 nuts and high strength thread locker.  As near as I can
tell the threads on the u-bolts are fine and they do not appear to have
stretched, but of course I didn't clamp them up and measure them.  Two
of the original nuts just failed to hold. The new nuts did spin easily
into place (which surprised me).
>
These are a pair of six ton axles and they were not cheap.  They were
just the closest to the correct size for the application that I could
find.
>
I've got a fair amount of faith in liquid thread locker.  I've used
Permatex, Vibratite, and of course Loc-Tite brands with good results
over the years.
>
I'm not opposed to more expensive solutions.  I just don't think its
necessary here.  I did look at your link and I can see places it would
be useful.
 I would submit that compared to the cost of an accident, a few Drake
Nuts are insignificant.
  By the way, Drake Nuts were invented in the 1910s, US 1,271,449.
 And the analysis I couldn't remember was published in July 1922, and
did compare the Drake Nut with the thin jam nut with regular nut (with
jam nut between the big nut and whatever is being clamped).  Drake
Nuts worked regardless, but the big nut and jam nut assembly would
shake loose.  But this was before Loctite; this ought to work.  The
distorted nuts were also analyzed, and didn't win.
 Joe
I must add a correction.  Pair of 6K (3 ton) axles.  Not 6 ton.  Net load with the payload of the truck (tongue weight on the goose neck hitch) is probably around 14K, but I only licensed the trailer for 10K.
Before rolling out of Show Low I told somebody who stopped to check if I was alright, "I am just double checking my load.  I don't want the truck to come loose, fall down the side of the mountain, and take me with it."
In the grades I stopped at every brake check and a few other places to do a walk around feeling the hubs, tires, and the tension on each strap.   I did leave the winch cable in place on purpose with the intent it was a safety backup if not necessarily a great one.  I will do tie downs a little differently in the future as well.  I ran a single strap on the front, which is strong enough, but when it parted except for the winch cable there was nothing keeping the truck from rolling back except a rather meager bit of friction from the parking brake.  I guess the parking brake was a second safety in case the strap broke, and the winch clutch slipped.  The truck had not moved.  The straps in the back were still tight.  When I resecured it I used two straps in the front like I probably should have to begin with.  I've hauled equipment before using chains and its pretty common to cross secure with a single chain in the front and a single chain in the rear if it gos across more than one point on the piece of equipment.  I had hauling chains and binders with me also, but there wasn't really a good place to route them and be sure of getting good tension with the chain binders.  The straps slid over the frame in the small clearance that was available just fine.
I might also buy a new set of straps.  Some of these have been around since I hauled my Hurco mill back from Hemet California in 2010. Actually I have some new straps, but they are the type with flat plate hooks intended for securing loads straight across.  They would not have held properly for this type of load.  I had lots of stuff with me for the haul.
On my first haul (another similar size truck) I had a wheel hub get hot enough to be painful to the touch on the run out running empty.  I reset the castle nut tension and pumped some more grease into the easy grease zirc.  It was fine, but I put my hand on it every time I got out of the truck just to be sure.
This was my second haul on these axles.
I've used this trailer on the old axles to haul my tractor and a few other things before.
--
Bob La Londe
CNC Molds N Stuff
--
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Date Sujet#  Auteur
12 Apr 24 * Destructive Lock Nuts Suck37Bob La Londe
12 Apr 24 +* Re: Destructive Lock Nuts Suck33David Billington
12 Apr 24 i`* Re: Destructive Lock Nuts Suck32Bob La Londe
12 Apr 24 i +- Re: Destructive Lock Nuts Suck1David Billington
12 Apr 24 i +- Re: Destructive Lock Nuts Suck1Snag
13 Apr 24 i +* Re: Destructive Lock Nuts Suck28Joe Gwinn
13 Apr 24 i i`* Re: Destructive Lock Nuts Suck27Snag
13 Apr 24 i i `* Re: Destructive Lock Nuts Suck26Jim Wilkins
13 Apr 24 i i  +- Re: Destructive Lock Nuts Suck1Jim Wilkins
13 Apr 24 i i  `* Re: Destructive Lock Nuts Suck24Joe Gwinn
13 Apr 24 i i   +* Re: Destructive Lock Nuts Suck21Bob La Londe
14 Apr 24 i i   i+- Re: Destructive Lock Nuts Suck1Bob La Londe
14 Apr 24 i i   i`* Re: Destructive Lock Nuts Suck19Clare Snyder
14 Apr 24 i i   i +* Re: Destructive Lock Nuts Suck4Bob La Londe
14 Apr 24 i i   i i+- Re: Destructive Lock Nuts Suck1Jim Wilkins
15 Apr 24 i i   i i`* Re: Destructive Lock Nuts Suck2Clare Snyder
15 Apr 24 i i   i i `- Re: Destructive Lock Nuts Suck1Bob La Londe
14 Apr 24 i i   i +* Re: Destructive Lock Nuts Suck12Leon Fisk
14 Apr 24 i i   i i+* Re: Destructive Lock Nuts Suck10Joe Gwinn
14 Apr 24 i i   i ii+* Re: Destructive Lock Nuts Suck2Leon Fisk
15 Apr 24 i i   i iii`- Re: Destructive Lock Nuts Suck1Clare Snyder
15 Apr 24 i i   i ii`* Re: Destructive Lock Nuts Suck7Clare Snyder
15 Apr 24 i i   i ii `* Re: Destructive Lock Nuts Suck6Joe Gwinn
15 Apr 24 i i   i ii  +* Re: Destructive Lock Nuts Suck4David Billington
16 Apr 24 i i   i ii  i`* Re: Destructive Lock Nuts Suck3Clare Snyder
16 Apr 24 i i   i ii  i `* Re: Destructive Lock Nuts Suck2Joe Gwinn
17 Apr 24 i i   i ii  i  `- Re: Destructive Lock Nuts Suck1Clare Snyder
16 Apr 24 i i   i ii  `- Re: Destructive Lock Nuts Suck1Clare Snyder
15 Apr 24 i i   i i`- Re: Destructive Lock Nuts Suck1Clare Snyder
15 Apr 24 i i   i `* Re: Destructive Lock Nuts Suck2Clare Snyder
16 Apr 24 i i   i  `- Re: Destructive Lock Nuts Suck1Clare Snyder
13 Apr 24 i i   +- Re: Destructive Lock Nuts Suck1Jim Wilkins
13 Apr 24 i i   `- Re: Destructive Lock Nuts Suck1Jim Wilkins
13 Apr 24 i `- Re: Destructive Lock Nuts Suck1Clare Snyder
12 Apr 24 `* Re: Destructive Lock Nuts Suck3Jim Wilkins
12 Apr 24  `* Re: Destructive Lock Nuts Suck2Bob La Londe
13 Apr 24   `- Re: Destructive Lock Nuts Suck1Jim Wilkins

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