American Navistar Front Leaf Spring 55-144 For Heavy Duty Truck

Short Description:

Part No.	55-144	Paint	Electrophoretic paint
Spec.	101*21	Model	Heavy Duty
Material	SUP9	MOQ	100 SETS
Free Arch	112mm±5	Development Length	1474
Weight	43.34 KGS	Total PCS	2 PCS
Port	SHANGHAI/XIAMEN/OTHERS	Payment	T/T,L/C,D/P
Delivery Time	15-30 days	Warranty	12 months

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Product Detail

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Detail

The leaf spring is suitable for semi-trailer

1. The item total has 2 pcs, the raw material size is 101*21
2. Raw material is SUP9
3. The free arch is 112±5mm, the development length is 1474(737+737)
4. The painting use electrophoretic painting
5. We also can produce base on client's drawings to design
6. This type of leaf spring is suitable for the International/ Navistar 8200/8300/9200/9300SBA/9400

Do semi trailers have leaf springs?

When evaluating heavy-duty leaf springs, it's essential to balance their advantages with their potential drawbacks. These springs are highly regarded for boosting support, stability, and load capacity of vehicles. However, several key considerations should be kept in mind.

One major concern is the increased stiffness they can introduce, particularly noticeable when the vehicle is carrying light loads. This added stiffness may lead to a reduction in passenger comfort. Additionally, the extra weight of heavy-duty leaf springs can negatively affect fuel efficiency and overall vehicle performance. This additional weight might also decrease traction on uneven terrain, potentially impairing handling and maneuverability.

Moreover, heavy-duty leaf springs often come with higher costs, both in terms of purchase and installation. Their robust construction and specialized design can lead to more frequent maintenance and inspections, potentially resulting in increased upkeep expenses and inconvenience for vehicle owners.

While heavy-duty leaf springs offer substantial benefits in terms of support and load capacity, it's crucial to carefully weigh these potential drawbacks before making a decision.

Applications

How do I know what leaf springs I need for my trailer?

Maintaining and servicing leaf springs is crucial for ensuring optimal vehicle performance and safety. These essential suspension components support the vehicle's weight and absorb road shocks, significantly contributing to the overall health of the vehicle.

Regular visual inspections are key to spotting early signs of wear, damage, or corrosion on leaf springs. It's important to look for cracks, deformities, or indications of metal fatigue that could weaken the structure of the springs. Ensuring proper alignment and installation is also vital to prevent uneven wear and operational issues.

Applying the right lubricants periodically is necessary to avoid metal-to-metal contact and reduce friction, which helps maintain the flexibility and performance of leaf springs, especially under challenging conditions.

Any issues identified during inspections should be addressed promptly by a qualified technician. This might involve repairing minor damage, replacing worn components, or realigning the leaf springs. Routine maintenance tasks should include tightening U-bolts to the recommended torque specifications and replacing worn-out bushings as needed.

For commercial and off-road vehicles, conducting periodic load testing and suspension system inspections is advisable to ensure the leaf springs are functioning within their specified parameters. This proactive approach helps detect any loss of load-bearing capacity or weakening early, allowing for preventive maintenance or timely replacement.

In summary, meticulous care and maintenance of leaf springs are vital for vehicle longevity and safety. Regular inspections, proper lubrication, timely resolution of issues, and periodic load testing are essential practices for extending the lifespan of leaf springs and avoiding suspension-related problems. Working with qualified professionals and adhering to manufacturer guidelines are crucial for effective leaf spring maintenance and repair.

Reference

Provide different types of leaf springs which include conventional multi leaf springs, parabolic leaf springs, air linkers and sprung drawbars.
In terms of vehicle types, it include heavy duty semi trailer leaf springs, truck leaf springs, light duty trailer leaf springs, buses and agricultural leaf springs.

Leaf Springs Project

Production

How to measure!!!

Packing & Shipping

QC equipments

Our advantage

Quality aspect:

1) Raw Material

Thickness less than 20mm. We use material SUP9

Thickness from 20-30mm. We use material 50CRVA

Thickness more than 30mm. We use material 51CRV4

Thickness more than 50mm. We choose 52CrMoV4 as the raw material

2) Quenching Process

We strictly controlled the steel temperature around 800 degree.

We swing the spring in the quenching oil among 10 seconds according to the spring thickness.

3) Shot Peening

Each assembling spring set under stress peening.

Fatigue test can reach over 150000 cycles.

4) Electrophoretic Paint

Each item use electrophoretic paint

Salt spray testing reach 500 hours

Technical aspect

1. Reliable Performance: Leaf springs exhibit consistent performance attributes, ensuring occupants experience predictable handling and ride comfort throughout their use.
2. Efficient Weight Distribution: By effectively distributing the vehicle's weight and cargo, leaf springs enhance load balance and promote overall stability.
3. Superior Impact Absorption: Leaf springs excel at absorbing and cushioning the impact of uneven road surfaces, resulting in a smoother and more comfortable ride.
4. Enhanced Corrosion Resistance: Through proper treatment and coating, leaf springs demonstrate excellent resistance to corrosion, extending their lifespan and reliability across diverse environmental conditions.
5. Environmental Sustainability: The recyclability and reusability of leaf springs contribute to environmental sustainability by conserving resources and promoting eco-friendly practices.

Service aspect

1、Customization: Our factory can tailor leaf springs to meet specific customer requirements, such as load capacity, dimensions, and material preferences.
2、Expertise: Our factory’s staff possess specialized knowledge and skills in designing and manufacturing leaf springs, ensuring high-quality products.
3、Quality control: Our factory implements rigorous quality control measures to guarantee the reliability and durability of its leaf springs.
4、Production capacity: Our factory has the capability to produce leaf springs in large quantities, meeting the demands of various industries and customers.
5、Timely delivery: Our factory’s efficient production and logistics processes enable it to deliver leaf springs within specified timelines, supporting customer schedules.

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