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11-17-2014, 01:31 PM
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#21
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TrailManor Master
Join Date: Oct 2010
Location: Big Bend area, Florida
Posts: 2,120
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Quote:
Originally Posted by Padgett
Had a long post hit backspace and it all went away. In short the Load Range of a tire varies with the section width and the inflation pressure. Inflate a LRE tire to 65 psi and it will have the same load rating as a LRD tire for a 225x75 that would be 2540 lbs
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Not necessarily correct, you have to go to the tire manufactures load table for that model tire.
Quote:
If you want you could graph the pressure vs load and not be far off. 1875 lbs at 44 psi, 2150 at 50, 2540 at 65, and 2830 at 80.
In general a steel wheel is stronger than an aluminum one. Though I have not seen either fail without either impact or extreme overloading (e.g. autocrossing). For a 225 section I'd want a 7" rim though a 6" rim is probably OK.
With a 3124 odds are you have a 5k axle which comes standard with a 6 bolt wheel though I have been thinking about replacing my 3.5k axle with a 5k while keeping the 5 bolt hub so is not for sure and for certain.
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Our 2011 has a 6 bolt pattern with the 3500# axle.
Quote:
Final things: in any trailer tire I would be looking for a nylon cap or overlay, essentially an extra belt to stabilize the tread and as with a new car tire, get it balanced - you probably will not feel an out of balance tire on a trailer from the TV and there is no shock absorber to dampen oscillations. One of mine took 3oz.
Below is a graph of load vs psi for a 225x75. As you can see it is pretty linear.
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__________________
Axis 24.1 E 450 chassis, 6 spd tranny. GVWR 14500# GVCWR 22000 # GW(scales) 12400 #
[SIGPIC][/SIGPIC]
mods: 2- 100 watt solar panels, on roof, 300 watts portable
“They who would give up essential Liberty, to purchase a little temporary Safety, deserve neither Liberty nor Safety.” Benjamin Franklin
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11-17-2014, 01:35 PM
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#22
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TrailManor Master
Join Date: Oct 2010
Location: Big Bend area, Florida
Posts: 2,120
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Quote:
Originally Posted by funpilot
Padgett, I hope you are correct on the 6 bolt wheel as they are the only ones I have found rated to take 80 pounds of air pressure. I will chase down someone at TM on Monday and verify
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PM wmtire, he is a professional tire dealer. When we got our E load range tires he said set them to the side wall rating, 80 psi. We have since dropped them to 70 psi because on the center rib was showing wear.
__________________
Axis 24.1 E 450 chassis, 6 spd tranny. GVWR 14500# GVCWR 22000 # GW(scales) 12400 #
[SIGPIC][/SIGPIC]
mods: 2- 100 watt solar panels, on roof, 300 watts portable
“They who would give up essential Liberty, to purchase a little temporary Safety, deserve neither Liberty nor Safety.” Benjamin Franklin
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11-17-2014, 02:38 PM
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#23
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TrailManor Master
Join Date: Apr 2014
Location: Orlando
Posts: 2,796
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"Not necessarily correct, you have to go to the tire manufactures load table for that model tire."
Actually the pressure/volume/load relationship does not vary very much between manufacturers. MAXXIS even said a LRE tire at 65 psi would have the same load capacity as a LRD.
"Our 2011 has a 6 bolt pattern with the 3500# axle."
That is an option for the 3.5k axle just as a 5 bolt is an option for a 5k. The axle is rated as the least of its components. That said the incidence of failure for axles is very low so must be a lot of margin for shock (3.5k is for a static load).
My observation is that a 2720 or 2922 will have a 3.5k axle and a 3023/3124 will have a 5k. Has anyone seen something different ?
__________________
Looking for a 24/17 in or near Florida.
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11-17-2014, 04:28 PM
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#24
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TrailManor Master
Join Date: May 2014
Location: Chesapeake, VA
Posts: 496
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I have been told that the axle on my 3124 is 5k.
__________________
2015 3124KD
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Dometic 1110 Compressor Refrigerator
BlueOx SwayPro Hitch
2.5 inch lift kit
Progressive Industries EMS-HW30C
Yada Wireless backup camera
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