Truck bellcrank rear suspensions

Hi All,
Was Googling around other night and came across a new(to me anyway) 3D animation of a double bellcrank adjustable rear suspension.
Seems they were quite common to both bogie drive and lazy axle combos up to and including 25 ton over the rear end.
A very simple set up, at least going by the animation, it looks to my eye that you can play around a bit with the connecting rods and achieve some slght variation in what weight could be placed over each individual axle.
The 3D animation shows how it is distrbuted equally over each axle, 50/50.
More i look at it, seems I had seen something many years ago abit like this on a Leyland or one of those other mid range british lorries, cant recall if it was bogie drive or single drive/ lazy.
I'm only guessing here, but looking at the layout it would seem that the air bags would have made them obsolete.
No doubt a few of you blokes would be able to give me a few clues and/or pointers, but PLEASE, NO links to
any faceake or Facebook references,
I find it annoying enough that half the postings on this forum seem to want to send you there,
If that makes me dinosaur, so be it!
Many thanks if you can assist,
Dave_64

Lang wrote:

 

Kenworth fiddled with a simular suspension way back when



cya

Albion ''non reactive'' bogie suspension .from 1960 ......Leyland also used it on the lightweight Hippos . .............lots of pins and bushes to replace when worn .......Hendrickson beam was better in every way.

Scania had a suspension set up like that

Leyland's non-reactive suspension was fairly mainstream in it's time and met the design criteria of reducing axle hop during braking and acceleration. However that was in the British environment of sealed well made roads. As has been said, in the Aussie environment where dirt roads were common and frequent greasing of all those bushes wasn't going to happen the bushes didn't last long.

Thanks to all who replied, I had seen a couple of these layouts before notably the 3D animation and also that KW hd rear end.
For you intellectuals who can be bothered, how do you think this setup would work with firstly an adjustable rod on the short side of the bellcrank i.e. would give you some variation in axle load maybe 55/45 or maybe even 60/40???
Wouldnt think it would pay to go beyond that, end up with no traction available on the drive axle.
I suppose another alternative could be to replace one of the fixed short bellcrank rods with an air bag, but that is only complicating things more.
I realise there are a heap of linkages on those type of systems, but the basic idea as it is presented, is really very simple , which makes it attractive
At least enough to exercise a few of the old brain cells remaining.
Dave_64

The first picture in the '' Walkabout'' series shows an Albion with non reactive suspension on a lazy ...possibly a RE 27 .

As Werk said, 142H Scania had them.

Yes Dave, you could vary load sharing ratio by changing crank lengths within reason.
Would have to trace out flight paths of the moving parts to ensure it worked ok over gutters etc.

Mid 1970’s used to see cab over Benz with lazy set up 60 - 40. Had a long beam between spring ends. Sorry, can’t recall how it worked.
Could still do a wheelie unloaded.
Think it was Rodolfi? Subbied for A R Neal on the paper job around Fairfield. Tall good looking driver, bit like Athol Guy of the seekers.

 

This Cargo I had used this type of suspension.

 
 
LN700