Leaf spring axles are used in the majority of the trailers. They are made up of stacked spring leaves and are assembled over or under the trailer’s axle. If we want to install and replace the leaf spring trailer axle, we must carry out the following measurement methods to determine the size of the leaf spring trailer axle.

Determine the type of trailer spring. What do the ends of your trailer spring look like? Below are images of the most common types of trailer springs. You will need to know if you have a double eye spring or a slipper spring with a flat, radius, open eye, or hook end.

Measure the width of the spring. The majority of trailer springs for boat, motorcycle, horse, camping, flatbed, and utility trailers range from 1-3/4 to 2 inches wide. To determine the width, measure across the top of the top leaf.

Measure the length of the spring. If you are replacing a spring, getting the same length is important. To measure the free length, refer to the letter “C” below. It is important that your trailer is unloaded when measuring the length.

When determining length (C), measure from the center of one spring eye to the center of the other spring eye for double eye springs. Measurements will vary depending on the age and fatigue of your spring. We offer a large selection of trailer springs. Determining the length first, will narrow your selection down considerably and make finding the correct spring quicker.

Determine the capacity and how many leaves. Determine what type of capacity you require and how many steels leaves your existing springs to have. If you are replacing all of your springs, the number of leaves will not be as important. You can switch from a 4 leaf to a 3 leaf with thicker steel if you prefer. The capacity ratings are per spring. Determine the rating of your trailer axle and then select the capacity of your springs. If you have a 6000lb rated trailer axle with two springs, use two 3000lb rated or higher trailer springs.

Measure the free open (H) and the arc (A) and (B) of the trailer spring. These measurements are more for reference and will change with the age and fatigue of your spring. These measurements can show you the importance of replacing all of your springs rather than one at a time. If you have an older spring that has lost its arc over time and you add one new spring with a taller arc to the other side of your trailer, your trailer will lean to one side causing an uneven load and unsafe conditions.

The leaf spring trailer axle designed and manufactured by HAWAY is easy to install and replace and has a high load-carrying capacity. If you want to obtain related services, you can send your needs to us, and we will give you a satisfactory answer in time.

As a professional manufacturer of trailer parts, we always insist on providing customers with high-quality and safe products. We have an experienced manufacturing team and strict quality management system, which can carry out all-round quality control of our products. At the same time, we can also provide thoughtful one-stop service according to the diverse needs of customers. If you want to buy our trailer axle, please contact us immediately!