Pack of 5 Leaf 30 1/2" X 2.5" Wide Trailer Heavy Duty Slipper Leaf Spring for 10000 Lb Axles
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Product Details
| Customization: | Available |
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| Loading Weight: | 10000 Lbs |
| Material: | Steel |
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Basic Info.
- Model NO.
- BZ-062407
- Number of Axles
- Single Axle Suspension
- Type
- Leaf Spring Suspension
- Number of Leaves
- 5
- Eye Diameter
- 1''
- Size
- 30 1/2" X 2.5"
- Loading Capacity
- 10,000 Lbs
- Transport Package
- Export Standard Packing by Pallet
- Specification
- Customized
- Trademark
- BZ
- Origin
- Shandong China
- HS Code
- 7320109000
- Production Capacity
- 900000/Year
Packaging & Delivery
- Package Size
- 80.00cm * 30.00cm * 30.00cm
- Package Gross Weight
- 100.000kg
Product Description
Pack of 5 Leaf 30 1/2" x 2.5" Wide Trailer Heavy Duty Slipper Leaf Spring for 10000 lb Axles
Product Description

The function of trailer leaf spring
1. Load Support
Primary Function: Supports the weight of the trailer and its cargo, distributing the load evenly across the axle(s).
Heavy-Duty Capacity: Designed to handle varying loads, from light-duty utility trailers to heavy commercial trailers.
2. Suspension & Shock Absorption
Flexibility: The stacked steel leaves flex to absorb road shocks, bumps, and vibrations, improving ride stability.
Durability: Made of high-strength steel to withstand repeated stress without breaking.
Primary Function: Supports the weight of the trailer and its cargo, distributing the load evenly across the axle(s).
Heavy-Duty Capacity: Designed to handle varying loads, from light-duty utility trailers to heavy commercial trailers.
2. Suspension & Shock Absorption
Flexibility: The stacked steel leaves flex to absorb road shocks, bumps, and vibrations, improving ride stability.
Durability: Made of high-strength steel to withstand repeated stress without breaking.
3. Axle Positioning & Stability
Keeps Axles Aligned: Helps maintain proper axle spacing and prevents lateral (side-to-side) movement.
Reduces Sway: Enhances trailer stability, especially when cornering or on uneven terrain.
4. Enhanced Traction
By maintaining consistent tire contact with the road, leaf springs help improve traction, especially when hauling heavy loads.
5. Simple & Reliable Design
Low Maintenance: Unlike air suspensions, leaf springs have fewer moving parts, reducing the need for frequent repairs.
Cost-Effective: More affordable than complex suspension systems while still providing reliable performance.
Keeps Axles Aligned: Helps maintain proper axle spacing and prevents lateral (side-to-side) movement.
Reduces Sway: Enhances trailer stability, especially when cornering or on uneven terrain.
4. Enhanced Traction
By maintaining consistent tire contact with the road, leaf springs help improve traction, especially when hauling heavy loads.
5. Simple & Reliable Design
Low Maintenance: Unlike air suspensions, leaf springs have fewer moving parts, reducing the need for frequent repairs.
Cost-Effective: More affordable than complex suspension systems while still providing reliable performance.




Specification
ITEMS | VALUE |
Type | Single eye flat end |
Number of leaves | 5 |
Length | 30 1/2" |
Width | 3'' |
Eye Diameter | 3/4'' |
Bushing | Nylon |
Each capacity | 5000 LBS |
Axle capacity | 10000 LBS |
Measurement Method
Accurately measuring your trailer springs and choosing the correct replacements is important for the function of your trailer and will make the job of replacing them much easier. Using replacement trailer springs with the correct length will keep the axle in the same position, eliminating the need to move guards or suspension components like spring hangers. Matching your weight capacity, arch, and leaf count will keep the ride height of the trailer the same and keep the ride characteristics the same.
Determining when to replace trailer springs
-Noticing the following could warrant such actions even if a spring isn't technically broken:
-Suspension dipping on one side
-Obvious signs of corrosion or cracking
-Creaking or squeaking
-Tire wear, unusually high
-Consistently scraping the bottom when crossing bumps
Should always be per axle, replacing leaf springs helps maintain balance and consistent performance.
Step 1: DETERMINE THE TYPE OF TRAILER SPRING
Determining when to replace trailer springs
-Noticing the following could warrant such actions even if a spring isn't technically broken:
-Suspension dipping on one side
-Obvious signs of corrosion or cracking
-Creaking or squeaking
-Tire wear, unusually high
-Consistently scraping the bottom when crossing bumps
Should always be per axle, replacing leaf springs helps maintain balance and consistent performance.
Step 1: DETERMINE THE TYPE OF TRAILER SPRING


Step 2: MEASURE THE WIDTH OF THE TRAILER SPRING
Step 3: MEASURE THE LENGTH OF THE TRAILER LEAF SPRING
To measure the free length, refer to letter "C" above. 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 trailer springs.
Step 4: DETERMINE THE CAPACITY OF THE SPRINGS
Step 5: MEASURE FREE OPEN AND ARC OF THE TRAILER SPRING
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.
Step 3: MEASURE THE LENGTH OF THE TRAILER LEAF SPRING
To measure the free length, refer to letter "C" above. 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 trailer springs.
Step 4: DETERMINE THE CAPACITY OF THE SPRINGS
Step 5: MEASURE FREE OPEN AND ARC OF THE TRAILER SPRING
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.
Packing & Delivery

Company Profile

Shandong North Autotech Co., Ltd.
Shandong North Autotech Co.,Ltd is a scientific research team.
We devoted to solving working performance and efficiency of parts in the assembly.
With many years of experience in the direct relationship with the manufacturer's supplier and our customers, we always show our profession so that you can feel better when choose us.
We serve semi-trailer parts factories and dealers in Mid Easten , Asia ,American countries and clients all over world with technology and enthusiasm. We believe every ride becomes reliance.
We devoted to solving working performance and efficiency of parts in the assembly.
With many years of experience in the direct relationship with the manufacturer's supplier and our customers, we always show our profession so that you can feel better when choose us.
We serve semi-trailer parts factories and dealers in Mid Easten , Asia ,American countries and clients all over world with technology and enthusiasm. We believe every ride becomes reliance.


Why Choose Us?
Main Products
OEM/ODM capabilities
Competitive pricing & bulk discounts
Fast shipping
Competitive pricing & bulk discounts
Fast shipping
Customs clearance support
Turnkey project solutions
Turnkey project solutions
Trailer Axle from 3500-15000LBS
Brake Assembly
Trailer Wheel Hub
Leaf Spring
Hanger Kits( Include HDSS)
Landing/Electric Jack
Brake Assembly
Trailer Wheel Hub
Leaf Spring
Hanger Kits( Include HDSS)
Landing/Electric Jack
Recommended Products
FAQ
Q: What’s the lead time for orders?
A: Standard models ship in 15–30 days; customized units require 30–45 days.
A: Standard models ship in 15–30 days; customized units require 30–45 days.
Q: Do you provide after-sales service overseas?
A: Yes, we have partnered service centers in key regions.
A: Yes, we have partnered service centers in key regions.
Q: Can I request a customized bucket size?
A: Absolutely! We offer tailored attachments.
A: Absolutely! We offer tailored attachments.
Q: What documents do you provide for export?
A: Full export package (Commercial Invoice, Packing List, Bill of Lading, COC, etc.).
A: Full export package (Commercial Invoice, Packing List, Bill of Lading, COC, etc.).
Q: How do I place an order?
A: Contact us via email/phone for a quote, then confirm with a PO.
A: Contact us via email/phone for a quote, then confirm with a PO.
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