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{"title":"60Si2Mn & SUP9 Material Trailer Leaf Spring 90x11-10 with Fatigue Testing \u2265180K","imgUrl":"https:\/\/img.chinax.com\/nimg\/ba\/83\/da2fc2ee3b5063e80b9ed8bf1cd5-200x200-1\/60si2mn_26_sup9_material_trailer_leaf_spring_90x11_10_with_fatigue_testing_e2_89_a5180k_cycles_for_semi_trailer.jpg","attrs":{"Fatigue Testing":"\u2265180K Cycles","Size":"90\u00d711-10","Load Capacity":"500-3000 lbs","Weight":"52 KG"}}
{"title":"78.00kg 60Si2Mn SUP9 90\u00d716-9 Fuwa Type Leaf Spring","imgUrl":"https:\/\/img.chinax.com\/nimg\/26\/65\/53fddaa3a6acf41363ff0fa19f35-200x200-1\/78_00kg_60si2mn_sup9_90_c3_9716_9_fuwa_type_leaf_spring.jpg","attrs":{"Brand Name":"BYF","Model Number":"90\u00d716-9","Certification":"ISO9001:2015","Place of Origin":"China"}}
{"title":"50CrVA 76\u00d735-1 Parabolic Leaf Spring Suspension Parts","imgUrl":"https:\/\/img.chinax.com\/nimg\/5e\/3c\/a66a4c4ea860f5093dcc2fff52cb-200x200-1\/50crva_76_c3_9735_1_parabolic_leaf_spring_suspension_parts.jpg","attrs":{"Brand Name":"BYF","Model Number":"76\u00d735-1","Certification":"ISO9001:2015","Place of Origin":"China"}}
{"title":"Trailer Parts 70\u00d77-1 70\u00d76-3 70\u00d712-4 Eye To Eye Leaf Springs","imgUrl":"https:\/\/img.chinax.com\/nimg\/e9\/44\/dbfe804ae9def174b1712d3f9213-200x200-1\/trailer_parts_70_c3_977_1_70_c3_976_3_70_c3_9712_4_eye_to_eye_leaf_springs.jpg","attrs":{"Brand Name":"BYF","Model Number":"70\u00d77-1\/ 70\u00d76-3\/ 70\u00d712-4","Certification":"ISO9001:2015","Place of Origin":"China"}}
{"title":"Auto Parts 44.5\u00d78-2 Double Eye Trailer Leaf Springs","imgUrl":"https:\/\/img.chinax.com\/nimg\/3d\/da\/424c433bed545ae32ab8faa909ab-200x200-1\/auto_parts_44_5_c3_978_2_double_eye_trailer_leaf_springs.jpg","attrs":{"Brand Name":"BYF","Model Number":"44.5\u00d78-2","Certification":"ISO9001:2015","Place of Origin":"China"}}
60Si2Mn SUP9 90x13-9 Trailer Leaf Spring 180k Cycles Fatigue Tested for Semi Trailer Suspension System
The 90x13-9 trailer leaf spring is engineered for heavy-duty semi-trailer suspension systems, manufactured from premium 60Si2Mn (SUP9 equivalent) spring steel to deliver exceptional fatigue resistance and load-bearing performance.
Technical Specifications
Parameter
Specification
Material
60Si2Mn / SUP9 Spring Steel
Width
90mm
Thickness
13mm
Number of Leaves
9
Fatigue Life
≥180,000 Cycles
Hardness
40-47 HRC
Application
Semi Trailer / Heavy-Duty Truck Suspension
Surface Treatment
Anti-rust Painted
Certification
ISO 9001:2015
Place of Origin
Shandong, China
Key Features
Premium Material: 60Si2Mn / SUP9 grade spring steel, providing superior elasticity and deformation resistance
Optimized Specification: 90mm width × 13mm thickness × 9 leaves, designed for heavy-load semi-trailer applications
Proven Durability: ≥180,000 cycles fatigue tested under full-load conditions, ensuring long service life
Precision Heat Treatment: 40-47 HRC hardness achieved through controlled quenching and tempering processes
Corrosion Protection: Anti-rust painted finish for extended service life in harsh environments
Wide Application: Compatible with various semi-trailer, heavy-duty truck, and commercial vehicle suspension systems
Performance
Each leaf spring undergoes rigorous multi-stage fatigue testing exceeding 180,000 cycles, ensuring reliable performance under extreme load conditions. The 60Si2Mn SUP9 material offers enhanced tensile strength and fatigue resistance compared to standard spring steel grades, making it ideal for demanding long-haul trailer operations.
Quality Control
Manufactured under ISO 9001:2015 certified quality management system. Every batch is tested for dimensional accuracy, hardness uniformity, and fatigue endurance before shipment.
Packaging & Delivery
Export-grade wooden pallet packaging with anti-rust coating and steel strap securing. Custom specifications and OEM branding available upon request. Standard delivery within 7-15 working days.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Exporter
Year Established:
2001
Total Annual:
10 million-15 million
Employee Number:
100~150
Ecer Certification：
Verified Supplier
Founded at the beginning of 21th Century, Shenzhen BYF International Ltd was always specializing in Manufacturing and Distribution of Semi-trailer completely and Trailer spare parts. With the developing steadily in pasted years, we have got an impressive score,
which would bring us once... Founded at the beginning of 21th Century, Shenzhen BYF International Ltd was always specializing in Manufacturing and Distribution of Semi-trailer completely and Trailer spare parts. With the developing steadily in pasted years, we have got an impressive score,
which would bring us once...
