Axle "bend"

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Axle "bend"

Postby DogStar » Mon Feb 06, 2012 10:14 am

Hi All!

I am building on a 5x8 ft Red Trailer frame.
The axle is not standard but came as an option from Red Trailer.
It is much heavier and accommodates a 13 inch wheel and 10 inch brakes.
(I choose it becuase I wanted brakes.)

It only installs in one direction because the axle is round in cross section and it has mounting plates welded on for mounting to the springs.

Once mounted the curve (bend) of the axle, which is obvious no straight edge needed, is downward.

The only way to have the curve upwards is to mount the axle on top of the springs, but in this design the thickness of the axle cross section would not permit this.

Do any axles have the curve downwards?
So far my research here suggests not.

I can post a pic later if the would help.
Always with my thanks,
Eric

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Postby bobhenry » Mon Feb 06, 2012 10:21 am

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Postby Steve_Cox » Mon Feb 06, 2012 11:19 am

How about mount the axle on top of the springs and use shackles on the rear to increase the axle clearance?
Steve
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Postby Forrest747 » Mon Feb 06, 2012 11:57 am

Image

What I did was weld an extra set of shackles on the axle. makes it alot easier to switch if i have to.
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Postby eamarquardt » Mon Feb 06, 2012 12:10 pm

Forrest747 wrote:Image

What I did was weld an extra set of shackles on the axle. makes it alot easier to switch if i have to.


The extra piece welded to your axle is a perch. You have only one set of shackles per side.

Cheers,

Gus
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Postby Forrest747 » Mon Feb 06, 2012 12:12 pm

eamarquardt wrote: The extra piece welded to your axle is a perch. You have only one set of shackles per side.

Cheers,

Gus



BRAIN CRAMP !!!!!!!

Ok weld an extra thingambob to each side and then make sure the whachtamacallit is put in the right orientation.

Still in shock from the Pats loss. Giselle should have Tebowed a little more.

Dog what happened to me was i planned on the axle to be underneath the spring and that looked horrible it was too high. in searching for a solution someone online suggested just weld an extra set of perches. it would allow for eaier switch of the axle if i choose to and its the simplest solution. worked like a charm.
Last edited by Forrest747 on Mon Feb 06, 2012 12:49 pm, edited 1 time in total.
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Postby DogStar » Mon Feb 06, 2012 12:44 pm

At first the solution seemed to be to add in a set of shackles to the rear point, but on closer inspection the rear mount is not an "eye" but just a "j" allow for more movement of the spring along the underside of the frame. So since it isn't a closed "eye" the idea of shackles won't work. (Or am I wrong in that estimation?)

I think getting another set of perches welded on is the best solution. I am/was trying to avoid welding solutions since that means jobbing out some work, but I might as well get a good relationship going with a local welder.

Thanks, more input always appreciated and enjoyed. :applause:
Eric
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Postby eamarquardt » Mon Feb 06, 2012 3:49 pm

Forrest747 wrote:
Ok weld an extra thingambob to each side and then make sure the whachtamacallit is put in the right orientation.



Good! Now you're using proper "industry terms". Kinda like: "Dead nuts, balls accurate, it's an industry term" from "Cousin Vinny" an all time great movie.

Cheers,

Gus
The opinions in this post are my own. My comments are directed to those that might like an alternative approach to those already espoused.There is the right way,the wrong way,the USMC way, your way, my way, and the highway.
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Postby 48Rob » Mon Feb 06, 2012 7:31 pm

but on closer inspection the rear mount is not an "eye" but just a "j" allow for more movement of the spring along the underside of the frame. So since it isn't a closed "eye" the idea of shackles won't work. (Or am I wrong in that estimation?)


Got a picture?

Sounds like you're describing what are called "Slipper" springs.

Rob
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Re: Axle "bend"

Postby Dale M. » Mon Feb 06, 2012 10:18 pm

DogStar wrote:Hi All!


Do any axles have the curve downwards?
So far my research here suggests not.



The ends of the axles should point downward.... That is the way they are built so wheels/tire maintain "camber" once trailer if fully loaded and axle takes on some "bend"....

\----/ Positive camber good....

/----\ Negative camber bad.....

Any axle with "bend" should always have center of axle as high point.... IF you have bend as low point , when axle bends (under load) negative camber will get worse and you will have really bad tire wear on inside of tread....

For spring type identification....

http://www.americandiscountmarine.com/t ... rings.html

But looks as its a toss up on how to spell "length"....

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