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Old 11-03-2014, 01:26 PM   #743
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SOLD at 110 lbs.
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Old 11-03-2014, 01:36 PM   #744
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Pound / Feet, or shall we really stir it up and discuss the same in Newton Meters?

But keep in mind periodic checking is a good thing or else:

Ya picked a fine time to leave me Loose Wheel, com'on sing along
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Old 11-03-2014, 02:13 PM   #745
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Quote:
Originally Posted by GCinSC2 View Post
Pound / Feet, or shall we really stir it up and discuss the same in Newton Meters?

But keep in mind periodic checking is a good thing or else:

Ya picked a fine time to leave me Loose Wheel, com'on sing along
Here this will clear it up for sure.

Foot-pounds and pound-feet—what’s the difference? | Mac's Motor City Garage

Does the fact that apparently we've been using improper phraseology mean the whole thread needs to be deleted? or have we?

What have we really been talking about?

Why didn't the Brits straighten out the English language before they sold it to us? I wonder how many pounds (or feet?) we paid for the rights to use it.

And on the other end of the body, we have pound head.

Ken
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Old 11-03-2014, 04:16 PM   #746
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SuEllyn and I spent some time this afternoon mounting Lucy's new 16" tires and wheels. All we very smoothly and we completed the whole exchange in a little over an hour using Legos to lift the wheels. The Centramatics are installed. We are torqued to 110 ft lbs and inflated to 72 psi.

Brian
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Old 11-03-2014, 06:04 PM   #747
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Congrats, Brian and SuEllyn!


Any pics of installation of the centramatics?
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Old 11-03-2014, 06:12 PM   #748
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Originally Posted by SteveSueMac View Post
Congrats, Brian and SuEllyn!


Any pics of installation of the centramatics?
There's not much to it. You simply place the holes in the centramatics over the lug studs, before you place the tire over them. If I remember right, there is an inside and an outside, but that's explained in the short instructions.

Ken
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Old 11-03-2014, 06:30 PM   #749
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Originally Posted by Ag&Au View Post
Here this will clear it up for sure.

Foot-pounds and pound-feet—what’s the difference? | Mac's Motor City Garage

Does the fact that apparently we've been using improper phraseology mean the whole thread needs to be deleted? or have we?

What have we really been talking about?

Why didn't the Brits straighten out the English language before they sold it to us? I wonder how many pounds (or feet?) we paid for the rights to use it.

And on the other end of the body, we have pound head.

Ken
Ken,

How 'bout that one, one for the book.

And the concern could also go to our vehicles, all types. How many times do you see tire work done with air guns set on full stun, or maybe a torque stick vs. a trained use of a torque wrench as the final tightening. But the other one i've seen is the vehicle actually rolling as the torque wrench is being used buts its just rolling back and forth.

Maybe the new Airstreamer's camp attire will be a torque wrench on his belt like we used to carry a slide rule.

Thanks,

Gary
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Old 11-03-2014, 06:46 PM   #750
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The Centramatics are super simple. You just slip it over the lug nuts with the the bead toward the wheel drum.

Here's a picture of the Centramatic on the ground, and then on the wheel drum before the wheel and tire were mounted.

Brian
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Old 11-03-2014, 06:57 PM   #751
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Great. Thanks!
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Old 11-03-2014, 07:24 PM   #752
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Thanks for showing which side is out Brian. I ordered my set today. After meeting Bob, from Lakewood/Oregon last Friday, we talked about the Centramatics and he convinced me to use them on our 20 FC.
Thanks Bob and it was nice meeting you


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Old 11-03-2014, 07:34 PM   #753
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I recall some debate regarding centramatics and the new zero offset bearings installed on late model Airstream trailers. Was it found to be okay?
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Old 11-03-2014, 07:36 PM   #754
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Originally Posted by markdoane View Post
As first stated by theOrca, the correct answer is based on the grade of the bolt/stud that is being stretched to some point below it's maximum elastic torque limit.
The bolt needs to stretch slightly in order to stay tight. By stretching the bolt you are effectively loading he joint between the wheel and hub, so you don't need to use lockwashers or threadlockers.
But if you overdo it, beyond the elastic limit and into the plastic range, you will permanently deform the bolt/stud and it may snap off.
So the three things that matters in this discussion is the metallury of the stud, the hardness of the wheel (steel or aluminum), and the condition (dry) of the threads. Everything else is immaterial.
Amen Mark

By the way, some of the aluminum rims use a steel insert embedded in the lug bolt holes. The wheels supplied with my 2010 model have them and therefore I would be comfortable with using the Airstream recommendation if the new wheels also had the steel inserts.
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Old 11-03-2014, 08:40 PM   #755
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I recall some debate regarding centramatics and the new zero offset bearings installed on late model Airstream trailers. Was it found to be okay?
In the discussion I remember, it was pointed out that the thickness of the flat part of the centramatics was insignificant in the measurements of offset.

So, yes it was deemed to be OK. I have heard no concern based on anything but speculation.

Ken
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Old 11-03-2014, 09:20 PM   #756
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Dexter recommends not using Centramatics with Nev-R-Lube bearings

Quote:
Originally Posted by kscherzi View Post
I recall some debate regarding centramatics and the new zero offset bearings installed on late model Airstream trailers. Was it found to be okay?
A representative of Dexter/Nev-R-Lube said that the additional offset caused by the addition of the Centramatics was unacceptable for the Nev-R-Lube bearing and would cause premature failure. This surfaced at the Alumaflamingo rally and was then reported in the Blue Beret magazine. Here is the the Thread:

http://www.airforums.com/forums/f44/...cs-102898.html

Many believe this is perhaps Dexter protecting their posterior and that such a minimal offset should be negligible. However the manufacturer has spoken.

Embedded in the thread listed here there is another thread that includes a good PDF of the Nev-R-lube bearing cross-section. One can see how close the inner and outer bearings are together and how the zero offset wheel loads them axially in the center of the stack. One can then visualize how an offset could impact the arrangement but as discussed, the offset is very small.

Here's a cutaway showing the bearing stack.
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