Subject:
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Four wheels good, two wheels bad
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Newsgroups:
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lugnet.technic
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Date:
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Thu, 8 Mar 2001 12:11:25 GMT
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Viewed:
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2497 times
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Gaurav Thakur wrote:
> The
> interesting thing is that the rear axle that's closest to the front steering
> axle seems to be liftable several inches off the ground (I have seen some of
> these trucks raise and lower this axle while stationary). Anyone know what
> this system is for?
In a European context they are sometimes referred to as a "lazy axle" and are
retracted when the load in the vehicle is empty or light. The idea is to reduce
tyre wear and improve fuel economy by reducing friction etc. I would imagine
that this would be particularly relevant on a short wheelbase vehicle with three
unsteerable rear axles...
Jennifer Clark
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Message has 1 Reply:
 | | Re: Four wheels good, two wheels bad
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| (...) They are common as muck here; as well as the type of vehicle you mention above, they are frequently used as heavy duty tippers, skip trucks and cement mixers. Jennifer Clark (26 years ago, 8-Mar-01, to lugnet.technic)
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Message is in Reply To:
| | Re: a question for those with lots of technic
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| (...) Yeah...I'm in the US too and mostly see the usual 18 wheelers. I have seen quite a few trash trucks though which seem to have 3 drive axles in the back, each housing 4 wheels (making total number of wheels 14). The interesting thing is that (...) (26 years ago, 8-Mar-01, to lugnet.technic)
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