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SS on spread axle flat bed....

Discussion in 'Trucks [ Eighteen Wheelers ]' started by carrkool, Nov 7, 2012.

Page 1 of 3
  1. Nov 7, 2012 #1
    carrkool

    carrkool Heavy Load Member

    883
    495
    May 10, 2012
    adah, pa
    0
    I just woundering what others think. I saw a flat bed rip out the front axle on his trailer while backing into a spot. This was on a 2011 benson. the front axle supports snapped and sounded like a bomb exploding. it tore the air bags apart, lines damaged and the axle shot over so that the left tire was sitting against the frame rails.

    What do you think of SS on spread axles. Personal i Dont like them on drive axles, trailers with normal tandems i could see but a spread axle just seems like alot of stress on the supports
     
    carrkool, Nov 7, 2012
    carrkool, Nov 7, 2012
    #1
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  3. Nov 7, 2012 #2
    black_dog106

    black_dog106 Road Train Member

    1,786
    1,666
    Mar 29, 2009
    MA
    0
    Why they have air dumps on one axle...:biggrin_25512:
     
    black_dog106, Nov 7, 2012
    black_dog106, Nov 7, 2012
    #2
    SHO-TYME Thanks this.
  4. Nov 7, 2012 #3
    Cowpie1

    Cowpie1 Road Train Member

    5,569
    4,651
    Nov 25, 2008
    Kellogg, IA
    0
    Keim trucking has been running wide based on spreads since sometime in the mid 90's. They seem to have it all worked out. Every one of their trucks and trailers has wide based. I think they were the first trucking company to go 100% to wide based all the way around.
     
    Cowpie1, Nov 7, 2012
    Cowpie1, Nov 7, 2012
    #3
  5. Nov 7, 2012 #4
    granhawler

    granhawler Light Load Member

    296
    56
    Feb 26, 2011
    0
    I may be wrong but I don't think you can put 40,000lbs on a spread if your running super singles compared to duals.
     
    granhawler, Nov 7, 2012
    granhawler, Nov 7, 2012
    #4
  7. Nov 8, 2012 #5
    black_dog106

    black_dog106 Road Train Member

    1,786
    1,666
    Mar 29, 2009
    MA
    0
    [TABLE]
    [TR]
    [TH][/TH]
    [TH]SPEED
    RATING
    (MPH)[/TH]
    [TH][TABLE]
    [TR]
    [TH="colspan: 3"]SINGLE MAX[/TH]
    [/TR]
    [TR]
    [TH="colspan: 3"]LOAD[/TH]
    [/TR]
    [TR]
    [TH](LBS)[/TH]
    [TH] [/TH]
    [TH](KG)[/TH]
    [/TR]
    [/TABLE]
    [/TH]
    [TH][TABLE]
    [TR]
    [TH="colspan: 3"]SINGLE[/TH]
    [/TR]
    [TR]
    [TH="colspan: 3"]INFLATION[/TH]
    [/TR]
    [TR]
    [TH](PSI)[/TH]
    [TH] [/TH]
    [TH](KPa)[/TH]
    [/TR]
    [/TABLE]
    [/TH]
    [TH][TABLE]
    [TR]
    [TH="colspan: 3"]DUAL MAX[/TH]
    [/TR]
    [TR]
    [TH="colspan: 3"]LOAD[/TH]
    [/TR]
    [TR]
    [TH](LBS)[/TH]
    [TH] [/TH]
    [TH](KG)[/TH]
    [/TR]
    [/TABLE]
    [/TH]
    [TH][TABLE]
    [TR]
    [TH="colspan: 3"]DUAL[/TH]
    [/TR]
    [TR]
    [TH="colspan: 3"]INFLATION[/TH]
    [/TR]
    [TR]
    [TH](PSI)[/TH]
    [TH] [/TH]
    [TH](KPa)[/TH]
    [/TR]
    [/TABLE]
    [/TH]
    [TH][TABLE]
    [TR]
    [TH="colspan: 3"]REVS[/TH]
    [/TR]
    [TR]
    [TH="colspan: 3"]PER[/TH]
    [/TR]
    [TR]
    [TH](MILE)[/TH]
    [TH] [/TH]
    [TH](KM)[/TH]
    [/TR]
    [/TABLE]
    [/TH]
    [TH][TABLE]
    [TR]
    [TH="colspan: 3"]MINIMUM[/TH]
    [/TR]
    [TR]
    [TH="colspan: 3"]DUAL SPACING[/TH]
    [/TR]
    [TR]
    [TH](IN)[/TH]
    [TH] [/TH]
    [TH](MM)[/TH]
    [/TR]
    [/TABLE]
    [/TH]
    [TH]PRODUCT
    CODE[/TH]
    [/TR]
    [TR]
    [TD="bgcolor: #cccccc, colspan: 9"]TUBELESS TIRES ON 15° DROP CENTER RIMS[/TD]
    [/TR]
    [TR="bgcolor: #cccccc"]
    [TD]385/65R22.5 J[/TD]
    [TD]68[/TD]
    [TD][TABLE]
    [TR]
    [TD]9,370[/TD]
    [TD] [/TD]
    [TD]4,250[/TD]
    [/TR]
    [/TABLE]
    [/TD]
    [TD][TABLE]
    [TR]
    [TD]120[/TD]
    [TD] [/TD]
    [TD]830[/TD]
    [/TR]
    [/TABLE]
    [/TD]
    [TD][TABLE]
    [TR]
    [TD]0[/TD]
    [TD] [/TD]
    [TD]0[/TD]
    [/TR]
    [/TABLE]
    [/TD]
    [TD][TABLE]
    [TR]
    [TD]0[/TD]
    [TD] [/TD]
    [TD]0[/TD]
    [/TR]
    [/TABLE]
    [/TD]
    [TD][TABLE]
    [TR]
    [TD]485[/TD]
    [TD] [/TD]
    [TD]301[/TD]
    [/TR]
    [/TABLE]
    [/TD]
    [TD][TABLE]
    [TR]
    [TD]0.0[/TD]
    [TD] [/TD]
    [TD]0[/TD]
    [/TR]
    [/TABLE]
    [/TD]
    [TD]756513422[/TD]
    [/TR]
    [TR="bgcolor: #cccccc"]
    [TD]425/65R22.5 L[/TD]
    [TD]68[/TD]
    [TD][TABLE]
    [TR]
    [TD]11,400[/TD]
    [TD] [/TD]
    [TD]5,150[/TD]
    [/TR]
    [/TABLE]
    [/TD]
    [TD][TABLE]
    [TR]
    [TD]120[/TD]
    [TD] [/TD]
    [TD]830[/TD]
    [/TR]
    [/TABLE]
    [/TD]
    [TD][TABLE]
    [TR]
    [TD]0[/TD]
    [TD] [/TD]
    [TD]0[/TD]
    [/TR]
    [/TABLE]
    [/TD]
    [TD][TABLE]
    [TR]
    [TD]0[/TD]
    [TD] [/TD]
    [TD]0[/TD]
    [/TR]
    [/TABLE]
    [/TD]
    [TD][TABLE]
    [TR]
    [TD]468[/TD]
    [TD] [/TD]
    [TD]291[/TD]
    [/TR]
    [/TABLE]
    [/TD]
    [TD][TABLE]
    [TR]
    [TD]0.0[/TD]
    [TD] [/TD]
    [TD]0[/TD]
    [/TR]
    [/TABLE]
    [/TD]
    [TD]756514422[/TD]
    [/TR]
    [TR="bgcolor: #cccccc"]
    [TD]445/65R22.5 L[/TD]
    [TD]68[/TD]
    [TD][TABLE]
    [TR]
    [TD]12,300[/TD]
    [TD] [/TD]
    [TD]5,600[/TD]
    [/TR]
    [/TABLE]
    [/TD]
    [TD][TABLE]
    [TR]
    [TD]120[/TD]
    [TD] [/TD]
    [TD]830[/TD]
    [/TR]
    [/TABLE]
    [/TD]
    [TD][TABLE]
    [TR]
    [TD]0[/TD]
    [TD] [/TD]
    [TD]0[/TD]
    [/TR]
    [/TABLE]
    [/TD]
    [TD][TABLE]
    [TR]
    [TD]0[/TD]
    [TD] [/TD]
    [TD]0[/TD]
    [/TR]
    [/TABLE]
    [/TD]
    [TD][TABLE]
    [TR]
    [TD]453[/TD]
    [TD] [/TD]
    [TD]282[/TD]
    [/TR]
    [/TABLE]
    [/TD]
    [TD][TABLE]
    [TR]
    [TD]0.0[/TD]
    [TD] [/TD]
    [TD]0[/TD]
    [/TR]
    [/TABLE]
    [/TD]
    [TD]756515422[/TD]
    [/TR]
    [/TABLE]
     
    black_dog106, Nov 8, 2012
    black_dog106, Nov 8, 2012
    #5
  8. Nov 8, 2012 #6
    Freightlinerbob

    Freightlinerbob Road Train Member

    2,234
    1,316
    Jan 15, 2012
    West Coast B.C.
    0
    Sounds to me like the operator had maybe NOT been using the dump valve on a regular basis and when you witnessed that- it was the culmination of repeated abuse. The proverbial straw, if you will.

    Likely nothing to do with the type of tires.
     
    Freightlinerbob, Nov 8, 2012
    Freightlinerbob, Nov 8, 2012
    #6
  9. Nov 8, 2012 #7
    Scania man

    Scania man Road Train Member

    2,199
    483
    Jul 1, 2011
    Saskatchewan
    0
    Most trailers at this side of the pond have super singles, I've never seen problems like that, they have less rolling resistance but also have resistance dragging sideways too so should cause less pressure to make an axle break away, sounds like bad maintenance
     
    Scania man, Nov 8, 2012
    Scania man, Nov 8, 2012
    #7
  10. Nov 8, 2012 #8
    Freightlinerbob

    Freightlinerbob Road Train Member

    2,234
    1,316
    Jan 15, 2012
    West Coast B.C.
    0
    Yes but do they have 3.7 meters between axles?
     
    Freightlinerbob, Nov 8, 2012
    Freightlinerbob, Nov 8, 2012
    #8
  11. Nov 8, 2012 #9
    Scania man

    Scania man Road Train Member

    2,199
    483
    Jul 1, 2011
    Saskatchewan
    0
    Ahhh no but all our trailers are on duals cos it's all step deck and lowbeds we have and I find the duals dig in harder on tight turns
     
    Scania man, Nov 8, 2012
    Scania man, Nov 8, 2012
    #9
  12. Nov 9, 2012 #10
    Freightlinerbob

    Freightlinerbob Road Train Member

    2,234
    1,316
    Jan 15, 2012
    West Coast B.C.
    0
    Correction. It's 3.07 meters between axles. Scania Man, in the US if the axles are over 121" apart, they are considered a separate axle and can carry up to 20,000 each. Hard on tires and trailers if the dump valve is not used on tight turns.
     
    Freightlinerbob, Nov 9, 2012
    Freightlinerbob, Nov 9, 2012
    #10
    Scania man Thanks this.
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