differences between US and EU trailer

6*4 Is def much harder on fuel, I got to compare the exact same r 620's a few weeks back, same truck, tyres, gears, loads same day and weather conditions except 1 was 6*2 tag axle , 1 mpg difference some say it can be more, there is no traction advantage on roads either

 

example of european trailer with US truck. Much better menurability
[ame]http://www.youtube.com/watch?v=SxT2F0RClNs&feature=related[/ame]

 

Do American operators go for steered trailers at all ?

 

American spread axels usually have one that lifts up.

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This is a great thread with very nice photos and video's!! Thanks!

 

IMO: steer axe is too expencive solution. I'd recomend one front lift axe with button in cabin. All WABCO, Knorr, Bendix and Haldex trailer brake units support lift axes with manual override. And It saves tires when you haul less a half of payload ore if you tow empty trailer, you can rise axe.

Steer axes are good ro tankers with 3-4 axes ore heavy low boy trailers, so popular in Russia. they use self steer axes ore fifth wheel steer axes. But anyway it is a lot of steer stuff under frame and low boys are used on construction fields, so easy do damage all this stuff.... that's why steer axes are not popular

 

What works in some apps may not work in other apps ! I like the 6x2 set up for on highway in concept ! but if you ever have got high centered . Have had trucks spec that way in us, GREAT fuel milage . But had to very carefull where you go !!!!! Ours did not have lift axles , but that does not give that much clearance ! I drove to the more rouged places. once high centered use landing gear with blocks , lift truck ,block under wheels then set truck back down. Usaily 15 to 20 feet from dock ! not off road. Boss loved 10 mpg pulling vans. in western nc ! (50 to 150 k gross loads) (paper can be some of the lightist or some of the heavist loads just depends on form and how loaded) Why can we not get fuel milage now ? those were 86 years !

 

Steering axles are getting popular enough , livestock trailers have them for manouverabilty same for delivery trucks, logging trailers use fifth wheel steered axles for turning on rough ground to save tyres, all heavy haulage trucks use them