Tireman9 wrote:
I have completed an analysis of individual side to side and axle to axle variation in load. I note that out of the 500+ posts in this thread only two owners appear to know their real loads.
Most of you probably assume you have equal load distribution axle to axle and almost 50/50 side to side balance. The reality is you may have axle to axle split of 61/39 and/or side to side split of 41/59 with no indication which axle or which side is heaviest.
If you think you might like to avoid a multi-thousand dollar repair bill after having a tire failure you might find the information in my Dec 12 2012 post educational.
I made a typo above my blog post is dated 12/10. I am posting parts of it here:
"Without knowing the real load you can't use industry guidelines on how much air you need to have in your tires.
Too many RV owners simply and incorrectly assume that if they get on a scale and learn the axle load they can assume they know the tire load because they simply divide by 2 and think the result is the tire load. In reality few motorhomes are balanced side to side and even fewer trailers are balanced between axles so towables tend to be worse off as they start down the wrong path by taking the total load on all the trailer axles and divide by the number of axles and assume equal load distribution. They then compound their error and further assume equal side to side loading."
"most RVs have no room for error and many have so little safety margin that they end up with one or more tires and/or axles overloaded."
on this thread with its 500+ posts I find the real tire loads were only posted by two owners. On other threads "I found that the best trailer had 50/50 on the front axle and 52/48 on the rear axle. This sounds good until you also look at F-R axle to axle split and find 61/39.If we look at the trailers with 50/50 balance between axles we see some as bad as 41/59 side to side."
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RVSEF has done over 35,000 RVs and recorded the individual tire load measurements. They point out in their seminars they have found some 57% of RV have an overloaded component."
