行业组件数据 · 2026

主簧片

Primary load-bearing leaf in a leaf spring system that provides structural support and spring action.

技术定义与适配语境
典型 主簧片 会按材料、尺寸公差、适配关系和失效风险在 汽车制造 中评估。

The main leaf is the longest and thickest leaf in a multi-leaf spring assembly, serving as the primary structural member that carries the majority of the load and provides the foundational spring action. It typically features eyes or hooks at both ends for attachment to the vehicle frame and axle, and acts as the master leaf that guides the alignment and movement of the entire spring pack.

组件规格

定义
The main leaf is the longest and thickest leaf in a multi-leaf spring assembly, serving as the primary structural member that carries the majority of the load and provides the foundational spring action. It typically features eyes or hooks at both ends for attachment to the vehicle frame and axle, and acts as the master leaf that guides the alignment and movement of the entire spring pack.
工作原理
Works on the principle of beam bending under load, where the main leaf's curvature changes to absorb and store energy from road irregularities, then releases it to maintain vehicle stability and ride comfort. It distributes vertical forces through its length while maintaining lateral and longitudinal alignment.
材料
Typically made from high-carbon spring steel (SAE 51606150or 9260) or micro-alloyed steelsheat-treated to achieve Rockwell hardness of 45-50 HRCwith yield strength of 1200-1500 MPa and tensile strength of 1400-1800 MPa.
Width
50-100 mm
Camber
50-200 mm
Length
500-2500 mm
Thickness
8-20 mm
Eye Diameter
25-50 mm
Load Capacity
1000-5000 kg
标准
ISO 18137DIN 2093SAE J510

行业分类与别名

主簧片 的常用贸易名称、技术标识和检索关键词。

上级产品

该组件会出现在以下整机或工业产品中。

FMEA · 风险与缓解

诱因 → 失效模式 → 工程缓解

Overloading beyond rated capacity->Permanent set or sagging->Implement load monitoring systems and adhere to manufacturer weight limits
Inadequate lubrication at friction points->Premature wear and squeaking->Regular maintenance with appropriate anti-friction coatings
Stress concentration at eye ends->Crack initiation and propagation->Design with proper radius transitions and shot peening treatment

工业生态与工程逻辑

0
Fatigue failure due to cyclic loading
1
Corrosion in harsh environments
2
Eye bushing wear leading to alignment issues
3
Center bolt shear failure

合规与检测

tolerance
±1.5 mm on length, ±0.5 mm on thickness, ±0.3° on eye alignment
test method
Fatigue testing per ISO 18137 (minimum 100,000 cycles at 150% design load), static load testing, salt spray corrosion testing per ASTM B117

制造该组件的工厂

来自 CNFX 组件能力表的相关制造商资料。

制造商列表用于前期研究和供应商能力理解,不代表认证、排名或交易担保。

采购评估维度

不是客户评论,也不是实时热度。以下维度用于前期 RFQ 准备和供应商评估。

技术文档
4/5
制造能力
4/5
可检验性
5/5
供应商透明度
3/5

这些分值是采购评估维度示例,不代表真实客户评分、具体国家买家反馈或实时询盘。

相关组件

常见问题

What is the difference between main leaf and helper leaves in a leaf spring?

The main leaf is the longest, thickest leaf that carries the primary load and provides structural attachment points, while helper leaves (secondary leaves) are shorter, progressively thinner leaves that add load capacity and damping characteristics to the spring system.

How often should main leaf springs be inspected?

Main leaf springs should be visually inspected every 25,000 km or 6 months for cracks, sagging, or wear at attachment points, with detailed inspection during regular vehicle maintenance intervals as specified by the manufacturer.

我可以直接联系工厂吗?

CNFX 是开放目录,不是交易平台或采购代理。工厂资料和表单用于帮助你准备直接沟通。

CNFX Industrial Component Index · 汽车制造

数据基础

CNFX 制造商资料、技术分类、公开产品信息和持续合理性检查。

初步技术归类
本页用于结构化准备研究、RFQ 和供应商评估,不替代买方自己的供应商资质审查、标准核验和技术批准。

请求制造能力信息: 主簧片

说明目标数量、应用场景、交期和关键技术要求,用于准备 RFQ 或供应商评估。

谢谢,信息已发送。
谢谢,信息已收到。

需要制造 主簧片?

对比具备该组件加工或装配能力的制造商资料。

创建制造商档案 联系我们
上一个组件
主立柱
下一个组件
主纵梁
URN:CNFX:ME:UNIT:MAIN_LEAF