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Posted by stryped on April 24, 2008, 8:27 am
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It is called an "axle slider". Maybe someone can correct me if wrong,
but all it looks like is a section of angle iron with spring hangers
welded on it. This seems like it would be handy when building a
trailer to "slide the assemply with the frame upside down to the exact
spot where the centerline of the axle is the same distance from the
tongue on both sides, then weld the angle.
I am just throwing out questions trying to learn. I may or may not
build this thing anytime soon but I wonder since this is a critical
weld area if I could get a pieve of angle, say 2x2x3/16, have an
experiecned welder weld the bracks to the angle after I have tacked
them in the proper position, then, once the "sliders" are in the right
place, drilling and taping theangle through the bottom part of the
frame tubing, bolting it, then also welding around the angle?
Just thinking out loud here. Is there any advantage to using one of
these "sliders"?
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Posted by RoyJ on April 24, 2008, 9:30 am
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Sliders are commonly used on boat trailers where there is need to adjust
axle to match the center of gravity of the boat/trailer combination.
It also adds a bit of extra material at the spring perches, distributes
the stress concentrations somewhat.
Many 18 wheeler trailers have user adjustable rear bogies. Tell tell
sign is a row of 2" diameter holes in the frame above the rear bogies.
Pull the locking pins, set the trailer brakes, drive the tractor forward
or backward. Lets the driver adjust the weight on the trailer tires and
tractor tires to meet the 18,000 pounds per axle max.
stryped wrote:
> It is called an "axle slider". Maybe someone can correct me if wrong,
> but all it looks like is a section of angle iron with spring hangers
> welded on it. This seems like it would be handy when building a
> trailer to "slide the assemply with the frame upside down to the exact
> spot where the centerline of the axle is the same distance from the
> tongue on both sides, then weld the angle.
>
> I am just throwing out questions trying to learn. I may or may not
> build this thing anytime soon but I wonder since this is a critical
> weld area if I could get a pieve of angle, say 2x2x3/16, have an
> experiecned welder weld the bracks to the angle after I have tacked
> them in the proper position, then, once the "sliders" are in the right
> place, drilling and taping theangle through the bottom part of the
> frame tubing, bolting it, then also welding around the angle?
>
> Just thinking out loud here. Is there any advantage to using one of
> these "sliders"?
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Posted by stryped on April 24, 2008, 10:04 am
Please log in for more thread options > Sliders are commonly used on boat trailers where there is need to adjust
> =A0 axle to match the center of gravity of the boat/trailer combination.
> It also adds a bit of extra material at the spring perches, distributes
> the stress concentrations somewhat.
>
> Many 18 wheeler trailers have user adjustable rear bogies. Tell tell
> sign is a row of 2" diameter holes in the frame above the rear bogies.
> Pull the locking pins, set the trailer brakes, drive the tractor forward
> or backward. Lets the driver adjust the weight on the trailer tires and
> tractor tires to meet the 18,000 pounds per axle max.
>
>
>
> stryped wrote:
> > It is called an "axle slider". Maybe someone can correct me if wrong,
> > but all it looks like is a section of angle iron with spring hangers
> > welded on it. This seems like it would be handy when building a
> > trailer to "slide the assemply with the frame upside down to the exact
> > spot where the centerline of the axle is the same distance from the
> > tongue on both sides, then weld the angle.
>
> > I am just throwing out questions trying to learn. I may or may not
> > build this thing anytime soon but I wonder since this is a critical
> > weld area if I could get a pieve of angle, say 2x2x3/16, have an
> > experiecned welder weld the bracks to the angle after I have tacked
> > them in the proper position, then, once the "sliders" are in the right
> > place, drilling and taping theangle through the bottom part of the
> > frame tubing, bolting it, then also welding around the angle?
>
> > Just thinking out loud here. Is there any advantage to using one of
> > these "sliders"?- Hide quoted text -
>
> - Show quoted text -
Think it is a good idea for a utility trailer? Would threading the
3/16 frame tubing and installing a grade 8 bolt be strong enough? (One
on each end of the angle?
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Posted by Bruce L. Bergman on April 24, 2008, 10:47 am
Please log in for more thread options On Thu, 24 Apr 2008 07:04:10 -0700 (PDT), stryped
>> stryped wrote:
>> > Just thinking out loud here. Is there any advantage to using one of
>> > these "sliders"?
>>
>> Sliders are commonly used on boat trailers where there is need to adjust
>> axle to match the center of gravity of the boat/trailer combination.
>> It also adds a bit of extra material at the spring perches, distributes
>> the stress concentrations somewhat.
>>
>> Many 18 wheeler trailers have user adjustable rear bogies. Tell tell
>> sign is a row of 2" diameter holes in the frame above the rear bogies.
>> Pull the locking pins, set the trailer brakes, drive the tractor forward
>> or backward. Lets the driver adjust the weight on the trailer tires and
>> tractor tires to meet the 18,000 pounds per axle max.
>
>Think it is a good idea for a utility trailer? Would threading the
>3/16 frame tubing and installing a grade 8 bolt be strong enough? (One
>on each end of the angle?
A slider assembly is not a good idea on a plain utility trailer - if
you have the trailer loaded full of firewood and the tongue is too
light, you simply shift some of the wood forward, problem solved. If
you have a small tractor in it and the tongue is too heavy you either
shift it forward or back and adjust the tiedowns, or back the tractor
onto the trailer to put the engine block at the other end.
Sliders are used on boat trailers where the exact CG isn't known
before building the trailer and loading the boat, and the load can not
be adjusted - so you have to adjust the trailer instead.
The EZ-Slide axles on trucks are because some states have different
maximum wheelbase rules, and other states say they have to be farther
apart to carry more load. (Spread it out over a wider chunk of road.)
And we already covered through-bolting on a tubing frame... You
/have/ to weld a tubing sleeve in the hole, or you collapse the tubing
and seriously weaken the frame.
--<< Bruce >>--
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Posted by stryped on April 24, 2008, 11:14 am
Please log in for more thread options On Apr 24, 9:47=A0am, Bruce L. Bergman
> On Thu, 24 Apr 2008 07:04:10 -0700 (PDT), stryped
>
>
>
>
>
> >> stryped wrote:
> >> > Just thinking out loud here. Is there any advantage to using one of
> >> > these "sliders"?
>
> >> Sliders are commonly used on boat trailers where there is need to adjus=
t
> >> =A0 axle to match the center of gravity of the boat/trailer combination=
.
> >> It also adds a bit of extra material at the spring perches, distributes=
> >> the stress concentrations somewhat.
>
> >> Many 18 wheeler trailers have user adjustable rear bogies. Tell tell
> >> sign is a row of 2" diameter holes in the frame above the rear bogies.
> >> Pull the locking pins, set the trailer brakes, drive the tractor forwar=
d
> >> or backward. Lets the driver adjust the weight on the trailer tires and=
> >> tractor tires to meet the 18,000 pounds per axle max.
>
> >Think it is a good idea for a utility trailer? Would threading the
> >3/16 frame tubing and installing a grade 8 bolt be strong enough? (One
> >on each end of the angle?
>
> =A0 A slider assembly is not a good idea on a plain utility trailer - if
> you have the trailer loaded full of firewood and the tongue is too
> light, you simply shift some of the wood forward, problem solved. =A0If
> you have a small tractor in it and the tongue is too heavy you either
> shift it forward or back and adjust the tiedowns, or back the tractor
> onto the trailer to put the engine block at the other end.
>
> =A0 Sliders are used on boat trailers where the exact CG isn't known
> before building the trailer and loading the boat, and the load can not
> be adjusted - so you have to adjust the trailer instead.
>
> =A0 The EZ-Slide axles on trucks are because some states have different
> maximum wheelbase rules, and other states say they have to be farther
> apart to carry more load. =A0(Spread it out over a wider chunk of road.)
>
> =A0 And we already covered through-bolting on a tubing frame... =A0You
> /have/ to weld a tubing sleeve in the hole, or you collapse the tubing
> and seriously weaken the frame.
>
> =A0 --<< Bruce >>--- Hide quoted text -
>
> - Show quoted text -
I was not talkign of bolting through the whole tube, I was talking of
going through only one side of the tube by threadding the metal and
also welding.
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> but all it looks like is a section of angle iron with spring hangers
> welded on it. This seems like it would be handy when building a
> trailer to "slide the assemply with the frame upside down to the exact
> spot where the centerline of the axle is the same distance from the
> tongue on both sides, then weld the angle.
>
> I am just throwing out questions trying to learn. I may or may not
> build this thing anytime soon but I wonder since this is a critical
> weld area if I could get a pieve of angle, say 2x2x3/16, have an
> experiecned welder weld the bracks to the angle after I have tacked
> them in the proper position, then, once the "sliders" are in the right
> place, drilling and taping theangle through the bottom part of the
> frame tubing, bolting it, then also welding around the angle?
>
> Just thinking out loud here. Is there any advantage to using one of
> these "sliders"?