Reinvented axle???

[maproy99]

Re: Reinvented axle???

um, there is no problem


also double the rated load on a tire, any tire, in good shape will not automatically cause damage at low speed. Even at high speed, the damage would generally not occur until the tire began to overheat. Hitting a pothole or rough section of road at 60 mph could exert many times more force on the tire than double capacity and that often does no damage.

I hauled 4-5 tons of stone in the bed of a 1/2 ton chevy with 235/75r15 lt's on the back at under 10 mph for a distance of 3-4 miles about a dozen times when I was in high school working on my parents driveway. Those tires were on the truck another 5 years or so with no problems. The rear springs on the other hand were trashed and I swapped em out the next week.

4-5 tons in a half ton? You would have had a guaranteed expensive ticket if a cop saw you. lol More weight then what most half tons are rated to even pull

 

[smokeonthewater]

Re: Reinvented axle???

Cop? lol there were no cops out there..... this was over 20 years ago and WAY out in the country. If you called a cop for help you were lucky if they made it there in a couple hours.

 

[maproy99]

Re: Reinvented axle???

Cop? lol there were no cops out there..... this was over 20 years ago and WAY out in the country. If you called a cop for help you were lucky if they made it there in a couple hours.

If only it were still like that today, so much stuff I would do.......

 

[dingbat]

Re: Reinvented axle???

I've put 1000's of miles on my tandem axle boat trailers. Alway run radials and have never had problem one. Why would I want such a complicated soliution to a non-problem? Makes no sense

 

[Silvertip]

Re: Reinvented axle???

um, there is no problem


also double the rated load on a tire, any tire, in good shape will not automatically cause damage at low speed. Even at high speed, the damage would generally not occur until the tire began to overheat. Hitting a pothole or rough section of road at 60 mph could exert many times more force on the tire than double capacity and that often does no damage.

I hauled 4-5 tons of stone in the bed of a 1/2 ton chevy with 235/75r15 lt's on the back at under 10 mph for a distance of 3-4 miles about a dozen times when I was in high school working on my parents driveway. Those tires were on the truck another 5 years or so with no problems. The rear springs on the other hand were trashed and I swapped em out the next week.

So you would bank on a 1750# spring standing up to a 3500# load and not flattening, or a 1750# spindle standing up to the same load without bending, or the axle itself not bending in the middle under twice it's rated load? Boat trailer axles bend when 500# overloaded! I see a local landscaper go by my house frequently with an old S-10 pickup with a flatbed in place of the pickup box. It is usually way overloaded with dirt or landscape rock/blocks to the point where the frame is on the bump stops. When he goes by empty the frame is obviously still on the bump stops. I think the fine point we are discussing here is that trucks (small, medium or large) have tires with load ratings that are generally hgiher (sometimes quite a bit higher) than the GVWR of the vehicle itself. GVWR is not based solely on the tires, but on springs and axle rating as well as what the frame is capable of. Tires are certainly part of that rating but not the only part. So overloading may very well be possible. And by the way, where I live recapped tires are not allowed on "steering" axles". If boaters would check the sidewall of their tires and then compare that to the actual weight of the rig with full fuel, all accessoires, adult beverages, etc., may find their rigs are already overloaded or very close to the top of the tire load limit. Dumping trice the load I contend will still damage something. The rig may not fall to the ground but something will give. I find it far more reasonable to simply scuff the tires a bit when turning. Properly inflated this is simply not an issue with tires unless you repeatedly, for whatever reason, are forced into making extremely tight turns.

 

[Silvertip]

Re: Reinvented axle???

The only solution to this problem seams to be make a full time axle with a part time helper axle. If anyone can come up with a better solution then that please post it.

If you had a full time axle rated fpr the load you are carrying you wouldn't need the helper. 3500# is the typical limit for single axle boat trailers. 15 inch wheels and tires are typically used. The next jump in axle capacity is 5000# and 7500 after that. The hubs and wheels for those axles now force the use of 16 or larger wheels and tires and those get really expensive. It is certainly possible to build a single axle trailer using a 5000# axle but cost gets in the way. Although I didn't run the numbers I suspect the cost of the trailer frame, axle, wheels and tires are more than the cost of 3500# tandem axle setup.

 

[Gun Dog]

Re: Reinvented axle???

um, there is no problem


Even at high speed, the damage would generally not occur. Hitting a pothole or rough section of road at 60 mph could exert many times more force on the tire than double capacity and that often does no damage.

Are you forgetting about the extreme lateral load placed on a tire/sidewall on a curve?

 

[smokeonthewater]

Re: Reinvented axle???

I didn't say ANYTHING about springs axles or frames being fine, in fact I said the opposite on the springs on the pickup that I grossly overloaded but at LOW speeds IE tight maneuvers the tires would be fine..... Of course I do agree that there is no problem that needs fixed as I said before.

Are you forgetting about the extreme lateral load placed on a tire/sidewall on a curve?

nope, that, along with absorbing shock, is exactly WHY tires have sidewalls...

now there IS a tradeoff involved and this is why I prefer 2 5200 lb axles over 3 3500 lb axles under my boat... you DO often start getting into tire probs with a tri axle

 

[sschefer]

Re: Reinvented axle???

The biggest change in trailers came with the torsion style axles and there's pro's and con's about those too. If the O/P wants to spend the time and money to try and create an expensive solution to a problem that seems like a big deal to him but not to us then I say go for it. This is the way industry changes come about. I'm not saying his current idea is realistic or correct. I'm just saying that he may come on to something that you all will be buying from him in the near future. I say go for it, you current idea is a little over complicated in my minds eye but if you can simplify it and refine it you might just come up with a solution. I'd try to not loose site of the fact that when it comes to something like a trailer, most people don't look at it as a big deal, its just a necessity. If it gets the boat where it needs to go then it's usually good enough for most of us and we pay no further attention to it other than regular maintenance.

I trailer my boat everywhere I go fishing. I bought the boat and trailer last May and I've put nearly 5,000 road miles on it this season. It's an EZ Loader and was about 2,500.00 new so keep that in mind as your costs begin to rise with your invention.