DIY repair of rubber harness trailer suspension

In detail: do-it-yourself repair of a rubber harness trailer suspension from a real master for the site my.housecope.com.

Often buyers ask themselves the question of how the leaf spring suspension differs from the rubber-wired (torsion bar), and the trailer with which suspension to choose? First, let's consider the advantages of these two most popular types of suspension for light trailers, trailer springs.

Springs + shock absorbers

Rubber-harness

Softness of the stroke
Higher stability of the trailer on bumps
Dependent: higher "margin of safety"
Repairable even in the field

Not dependent
More ground clearance
Lower trailer loading height
Maintenance free
Cheap
Easy to install
On the Russian market, there is only a suspension designed specifically for trailers.

Now let's look at the disadvantages.

Rubber-harness

Less ground clearance
Higher loading height of the trailer
Requires serviceable (less resource + requires lubrication of friction points)
Specialized leaf spring suspension is more expensive than rubber-harness
More difficult to mount / dismantle
The widespread use of springs that are not intended for light trailers (from Gazelle, Moskvich, etc.): "dangles and jumps" or sags and rubs the wheels with the fenders

Rigid travel, vertical buildup ("jitter" on the towbar)
Less "safety margin"
Not repairable: in case of a breakdown on the road, the trailer is not transportable, a new axle is required

For obvious reasons, there are not many people who want to buy a trailer with a rubber-harness suspension, but some models with a spring suspension are simply not produced. Separately, we emphasize that the springs are different for the springs and, most importantly, the number of sheets in the springs is not at all. Only high-quality springs of the German company Al-ko are installed on the MZSA and Stalker trailers. Their advantages over other springs:

Video (click to play).

1. Lower loading height and lower range.
2. Short stroke.
3. Special design of the spring. Because an empty trailer weighs about 250 kg, and a fully loaded 750 kg (i.e. a load range of 300%), the spring is designed in such a way that an empty trailer uses only one spring, and a loaded trailer uses all 4 (or more). This ensures optimum ride comfort with a trailer, whatever the load.

Road tests: rubber-harness and leaf spring suspension.

on the TONAR trailer, such a suspension, or rather Hmmmmm, there is a torsion bar of 3 harnesses (in the beam)

it all depends on how much you want to transport by weight cargo,

the stroke of such pendants is small

I have two trailers, one mzsa 750 kg second self-propelled gun 1500 kg both rubber-jute mzsa 3 harnesses in the suspension of a self-propelled gun 4 the more harnesses the more carrying capacity but less stroke and more rigidity.

MZSA trailer has a carrying capacity of 500 kg, I actually loaded it in 1500 kg, I drove a lot of sand and gravel, and at least he had to fuck. trailer by the way as much as 1993 release.

I personally like this suspension, neither maintenance nor lubrication does not require. the truth is, without a load, the trailer jumps strongly along the road

ALIVE there is also one axis but no amov

spring in practice is better and more reliable

ALIVE there is also one axis but no amov

spring in practice is better and more reliable

the spring driving performance is better.
at the expense of more reliable like this. springs that break, spring bushings that wear out, shock absorbers are also not eternal.
in rubber-jute three or four rubber bands in a tube that work on crushing and all this is reliable. mine with 93 g transported so much that some trucks will envy what. only bearings on the hubs changed and that's it.

and the axle there is not one but two axle shafts in one pipe. ZHIV suspension was correctly named "semi-independent"

I have a trailer with 4 rubber bands in the tube, where the axle of the "swing" of the wheel is inserted.
The trailer capacity is 750 kg, but the suspension is shit! the manufacturer went to cut costs. There is nothing metallic, no shock absorbers.
Therefore, the articulation of the wheel is scanty, the overload can turn the axle out and the trailer will be one-sided. An empty trailer jumps along the road like a bastard!

Three years later, the rubber bands cracked and the trailer “sagged”. Frost did his job.
In total, the trailer is 8 years old, for the last five years I have been using it only for garbage disposal at the landfill. When the plywood at the bottom is completely matched, I will remake it into springs from Moskvich. I will put the axle from VW Golf-2. Back. It is possible and from something else, such as the eight, just from the Golf I was given free of charge.
———
My conclusion: Rubber-harness torsion bars on the trailer - shit!
sorry for my french.

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