How Much Clearance is Needed to Account for Suspension Travel on a Trailer

Question

Question:

How much do springs actually flex? Given correct weight is on the axles rating. I want to install my axles above the springs but they are within a few inches of the frame. How much clearance is needed between axle and frame?

asked by: Scott

0

Expert Reply:

We usually tell people to look for about 3 inches of clearance to account for the total travel capabilities of trailer suspension. If you have less than 3 inches you might be able to compensate by using slightly longer shackle straps. I have included a link to the shackle straps we carry.

expert reply by: Michael H

0

Answer 1

The amount of leaves won't make a huge difference on whether they will flatten out or not as what really matters is the capacity of the spring relative to the axle and trailer weight. I would go with at least ta 4,400 lb leaf spring or maybe…

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Answer 2

If you are absolutely sure you wouldn't exceed the capacity of the one axle on your trailer you could get by with just one axle. You are going to have to move the good axle to where the center equalizer is currently at to ensure you get proper…

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Answer 3

Square axles normally don't have spring seats like a round axle but do have a hole for the leaf spring bolt to fit into. Take a look at the CE SMITH #CE33201GA-HUB for a visual. The U-bolt mounting kits will have a hole in the center for the…

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Answer 4

If the leaf spring part #e57SR that you referenced matches up dimensionally to what your trailer has and has a capacity that is 400 lbs more than needed it would work just fine. Having a bit extra capacity for the leaf springs would not cause an…

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Answer 5

A trailer's weight carrying capacity is a function of all the parts used to construct it. These include the trailer's frame, axle, suspension, hubs, wheels and tires. Each of these individual components will have its own weight rating. A…

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Answer 6

The fact your outer bearing fits on a .75 diameter spindle means we aren't going to have a standard bearing kit to fit since that's not a standard dimension. Can you get me the C dimension as well? It could be that you need the part #LM67048…

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Answer 7

From the measurements you gave me, it sounds like you have an Agricultural Spindle like #TRU54FR that uses #LM67048 Inner bearing and #LM11949 Outer bearing. For a hub assembly with a 4 on 5 bolt pattern #AH15450ECOMP will work and the bearings, seal…

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Answer 8

I do have options for you but we would not have a direct replacement for your 3,500 Lb Lippert Axle. Instead, we have the Timbren Axle-Less Trailer Suspension System part #ASR3500S05 or part #ASR3500S06 which as the title states is an axle-less style…

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Answer 9

I have two options for you to raise your trailer and gain more clearance between the fender and tire. The most cost effective option would be to flip the axles with a Dexter Trailer Springs Over-Under Kit part #K71-384-00 or part #K71-385-00. That…

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Answer 10

It's hard to see in your picture but is the hanger open on the one side which allows the spring to slide out to the side? It shouldn't be open like that. If you need a replacement hanger we have the #115706S for if you have a 1-3/4 inch wide…

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Answer 11

To correctly measure a leaf spring, you'll want to jack the trailer up on jack stands so the axle is hanging freely, then measure directly across from the center of one spring eye to the other, as shown in the provided diagram. The height of the…

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Answer 12

The biggest difference between the servo styles that you'll notice is between free backing plates and the others. The free-backing plates will allow your trailer to back up without having the brakes lock up. With surge brakes typically when you…

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How Much Clearance is Needed to Account for Suspension Travel on a Trailer

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