行业组件数据 · 2026

连接销

Precision-engineered cylindrical pins used to create secure, load-bearing connections between mechanical linkage components in force transmission systems.

技术定义与适配语境
典型 连接销 会按材料、尺寸公差、适配关系和失效风险在 机械和设备制造 中评估。

Connection pins are cylindrical mechanical fasteners designed to join two or more components of a force transmission linkage, such as levers, rods, or plates, by passing through aligned holes. They transmit shear forces and moments while allowing rotational or limited linear movement at the joint. These pins are critical for maintaining alignment, load distribution, and structural integrity in mechanical assemblies under dynamic or static loading conditions.

组件规格

定义
Connection pins are cylindrical mechanical fasteners designed to join two or more components of a force transmission linkage, such as levers, rods, or plates, by passing through aligned holes. They transmit shear forces and moments while allowing rotational or limited linear movement at the joint. These pins are critical for maintaining alignment, load distribution, and structural integrity in mechanical assemblies under dynamic or static loading conditions.
工作原理
Connection pins work by inserting through pre-drilled holes in mating linkage components, creating a pivot point or fixed joint. They resist shear forces perpendicular to their axis while allowing rotational freedom (in clevis or hinge joints) or restricting movement (in fixed connections). Load is transferred through the pin's cross-sectional area, with stress distributed along the bearing surfaces of the pin and mating parts. Proper fit (clearance, interference, or transition) ensures optimal force transmission and minimizes wear.
材料
Typically made from alloy steels (e.g.AISI 41404340) for high strength and toughnessstainless steels (e.g.304316) for corrosion resistanceor tool steels. Surface treatments include hardening (case or through hardening)plating (zincnickel)or coatings (phosphateblack oxide) to enhance wear and corrosion resistance. Material selection depends on load requirementsenvironmental conditionsand required hardness (often 30-50 HRC for wear resistance).
Length
10mm to 200mm
Diameter
3mm to 50mm (common range)
Hardness
30-50 HRC (typical)
Tolerance
h6, h7, or g6 per ISO standards
Load Capacity
Shear strength up to 800 MPa (depending on material)
Surface Finish
Ra 0.8-3.2 μm
标准
ISO 8734ISO 2338DIN 7DIN 6325ANSI B18.8.2

行业分类与别名

连接销 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

Insufficient pin diameter or material strength for applied loads->Shear fracture or permanent deformation->Conduct load analysis, select appropriate material (e.g., alloy steel), and apply safety factors (e.g., 2-4x) in design.
Poor lubrication or contamination in pin joints->Accelerated wear, increased friction, and potential seizure->Implement regular maintenance schedules, use suitable lubricants (e.g., grease), and install protective seals or covers.
Misalignment during assembly or operation->Uneven stress distribution, leading to premature wear or fatigue cracks->Ensure precise machining of holes, use alignment tools during assembly, and inspect linkages periodically.

工业生态与工程逻辑

0
Shear failure under excessive load
1
Wear and elongation of pin holes
2
Corrosion leading to seizure or strength loss
3
Misalignment causing uneven load distribution
4
Fatigue failure from cyclic stresses

合规与检测

tolerance
Diameter tolerance typically h6 (0 to -0.013mm for 10mm pin) per ISO 286, length tolerance ±0.5mm
test method
Shear testing per ASTM F606, hardness testing per ASTM E18, dimensional inspection with micrometers and gauges, corrosion resistance per salt spray tests (e.g., ASTM B117)

制造该组件的工厂

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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 a connection pin and a bolt?

Connection pins are primarily designed to resist shear forces and often allow rotational movement, typically secured by clips or retainers rather than threads. Bolts are threaded fasteners that clamp parts together, resisting tension and shear, and require nuts or threaded holes.

How do I select the right connection pin for a linkage?

Consider load type (shear, moment), magnitude, dynamic vs. static conditions, environmental factors (corrosion, temperature), required fit (clearance for movement, interference for fixed joints), and material compatibility with mating parts. Refer to standards like ISO 8734 for dimensions and tolerances.

What are common failure modes of connection pins?

Shear failure from overload, wear due to friction or misalignment, corrosion in harsh environments, and fatigue cracking under cyclic loading. Proper material selection, hardening, lubrication, and regular inspection can mitigate these risks.

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URN:CNFX:ME:UNIT:CONNECTION_PINS