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Ball nuts sheared off


roseyweb
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I would think that the main factor is that you are using what is basically a lorry to tow a car type trailer. It puts huge loads on the trailer & ball that it is just not designed for.

 

i dont follow you on this ??

 

carl

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i dont follow you on this ??

 

carl

 

Its a well known problem.

 

The suspension is much harsher on a lorry. So the loads applied to the trailer are higher.

 

Think of it this way. A seesaw with almost even weights on each end. You can raise & lower it & the forces stay similar.

 

Now put a huge load on one end & a small one on the other. The small load will get accelerated about by small movements of the large load.

 

I think it came to light when caravans were towed behind recovery trucks when the tow car broke down. I have a vague memory that they developed a hitch for them to reduce the shock loads.

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