Is your trailer riding too rough on rough roads? Do you find yourself worrying about towing heavy trailers? These can be signs that your suspension system needs to be inspected. At GO Trailer, we know a good suspension is not just about comfort—it’s safety. In this article, we’ll explain what double eye springs are, how they work, and why they might be the upgrade your trailer wants today.

Understanding Double Eye Springs

What is a Double Eye Spring?

A double eye spring is one of the leaf springs of a trailer suspension. It is composed of several curved steel strips bonded together, and each of them possesses a circular “eye” at both ends. The eyes serve as anchorage points and enable the spring to be bolted and shackled securely to the trailer frame. This double-eye design provides a robust and durable foundation, with enhanced load distribution and shock absorption over most other suspension assemblies.

Key Features of a Double Eye Spring

• Main Leaf & Secondary Leaves: Layers of high-strength steel that act as support and flexural strength.
• Eyes: Circular openings at the ends to provide firm securing.
• Center Bolt: Secures the leaves aligned and attached.
• Spring Clips: Prevent leaf separation and structural integrity.
• Bushings: Usually made of rubber or polyurethane, inserted into the eyes to reduce noise and friction.

Double Eye vs. Slipper Springs: Which is Better for Your Trailer?

It’s important to know the difference between spring types to make the right choice. Double Eye Springs are fixed at both ends with eyes and shackles. This provides a more secure and controlled connection to the trailer frame, minimizing lateral movement and offering a smoother, more predictable ride. Slipper Springs have one eye at one end, with the other flat end “slipping” or sliding into a hanger. This will allow greater movement of the axle, which might be suitable for very dirty off-road applications, but will reduce highway stability. Most trailers—shipping goods, boats, or equipment—are best suited to the fixed-end form of the double eye spring, with greater safety and control.

How Double Eye Springs Work

The Mechanics Behind the Suspension

Double eye springs function through deflection under load to dissipate shock resulting from road undulations. When the trailer is rolling over bumps or rough roads, the layers of steel deflect minimally to provide cushioning of impact forces. The deflection is controlled by the tightness of the leaves bound together and their response to shackles and hangers mounted on the trailer frame.

Load Distribution and Shock Absorption

The double eye spring virtue is that it can share loads evenly throughout its entire length. This discourages excessive stressing of any one trailer frame or axle assembly point. By absorbing road vertical energy, it minimizes bounce and sway, increasing towing comfort overall.

Compatibility with Trailer Axles

GO Trailer‘s Double eye springs are very compatible with various axle types offered by manufacturers like GO Trailer. We only specialize in the manufacturing and supplying of a variety of high-quality trailer parts, among which are trailer dollies, jockey wheels, winches, couplers, axles, springs, wheels, and tyres. Our springs are designed to work well with our 45mm round non-braked drop axle or electric brake drop axle 40mm round for improved performance when used as needed.

5 Key Benefits of Shifting to Double Eye Springs

• Improved Safety & Stability: The triple protection at both ends reduces trailer sway and fishtailing, especially when turning or braking, for a safer drive.
• Improved Load Distribution: Double eye springs distribute your load’s weight evenly across the axle and frame, preventing stress points and protecting your trailer from early wear.
• Improved Toughness: Constructed of high-quality steel and carefully crafted, GO Trailer springs are designed to withstand harsh conditions and heavy weights, season after season.
• Smooth Towing Experience: By effectively dampening shock and vibration, these springs cushion your load against road shock and make towing significantly smoother and more comfortable.
• Easier Maintenance & Replacement: Their standardized design makes them easier to inspect, service, and replace. In the event the spring does wear out, it’s a simple replacement using standard equipment.

Why Use GO Trailer for Your Suspension Parts?

With GO Trailer, you’re not just buying a part—you’re buying peace of mind.

• Direct Manufacturer Pricing: Buying direct from us eliminates the dealer markup, time, and money savings.
• Strict Quality Control: We manufacture our springs using the most advanced CNC and laser cutting technology, ensuring every one of them meets our exacting standards for quality and safety.
• CE Certified: Ourtrailer parts are manufactured to strict international standards, so you can be confident that you’re getting a quality item.
• Skilled Help: Our engineers and trailer experts will help you with selection and installation and give technical guidance whenever you need it.

How to Select the Correct Double Eye Spring

Choosing the right spring is important for safety and performance. Here’s what to keep in mind:

• Gross Vehicle Weight Rating (GVWR): Use springs that are rated to your trailer’s maximum load.
• Number of Axles: Tandem-axle trailers require something different from a single-axle trailer.
• Trailer Type: The best spring for a car trailer might not be the same as a lightweight box trailer.
• Axle Compatibility: Ensure your new springs are compatible with your axle type (e.g., our 45mm round drop axles).

Beginner Tips for Installation

Double eye spring installation is simple if done carefully:

1. Park your trailer securely on jack stands.
2. Remove shackles and old leaf springs.
3. Align the new GO Trailer double eye spring eyes with the hangers.
4. Fit bolts through bushings securely.
5. Torque all fasteners according to specifications.
6. Verify alignment after installing.

If uncertain about DIY installation methods, our technical support staff assists step by step from a distance. To provide customers with product use training and operation manuals to help them use and maintain the products more effectively.

FAQ

Q: Are GO Trailer’s double eye springs customizable?

A: Size, package, and surface treatment can all be made customizable.

Q: Are your products certified?

A: We hold a CE certificate for trailer parts.

Q: How is shipping?

A: Orders are usually processed and dispatched within 5–10 business days, depending on destination.

Q: Is it possible to ask for samples before bulk orders?

A: Yes, no problem—sample service is facilitated.

Q: Where are you shipping from?

A: We are located at No. 15 Shanghai Road, Qingdao Free Trade Zone, Qingdao, China.