行业组件数据 · 2026

枢轴销/衬套

Pivot pins and bushings are precision components that enable rotational movement and reduce friction in bucket/grab mechanisms.

技术定义与适配语境
典型 枢轴销/衬套 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。

Pivot pins and bushings are critical mechanical components used in bucket and grab mechanisms to facilitate controlled rotational movement between connected parts. The pin serves as a fixed or rotating axle, while the bushing acts as a bearing surface to minimize friction and wear. These components are engineered to withstand significant radial loads, shear forces, and environmental stresses while maintaining precise alignment and smooth operation in heavy-duty material handling equipment.

组件规格

定义
Pivot pins and bushings are critical mechanical components used in bucket and grab mechanisms to facilitate controlled rotational movement between connected parts. The pin serves as a fixed or rotating axle, while the bushing acts as a bearing surface to minimize friction and wear. These components are engineered to withstand significant radial loads, shear forces, and environmental stresses while maintaining precise alignment and smooth operation in heavy-duty material handling equipment.
工作原理
Pivot pins provide a fixed axis of rotation, allowing connected components (like bucket arms or grab jaws) to pivot around them. Bushings are installed between the pin and the housing to create a low-friction interface, distributing loads evenly and preventing metal-to-metal contact. This combination enables smooth articulation while absorbing operational forces and vibrations.
材料
Pins: Typically made from alloy steels (e.g.AISI 41404340) or stainless steels (e.g.31617-4PH) with surface hardening (case hardening or induction hardening) to 45-60 HRC. Bushings: Made from bronze alloys (e.g.C93200C95400)self-lubricating polymers (e.g.PTFE compositesUHMW-PE)or steel-backed bimetallic materials with bronze or polymer liners.
Hardness
Pin: 45-60 HRC, Bushing: 80-120 HB
Pin Diameter
20-100 mm
Load Capacity
10-500 kN radial
Surface Finish
Ra 0.8-1.6 μm for pins
Operating Temperature
-40°C to +150°C
Bushing Wall Thickness
3-15 mm
标准
ISO 286-2DIN 1494ISO 4378-1DIN 14955

行业分类与别名

枢轴销/衬套 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

Inadequate lubrication->Accelerated wear and seizure->Implement scheduled lubrication with appropriate greases; use self-lubricating bushings where maintenance access is limited
Contamination ingress->Abrasive wear and surface damage->Install effective seals and wipers; use sealed bushing designs; implement regular cleaning protocols
Overloading beyond design limits->Pin bending or bushing crushing->Implement load monitoring systems; train operators on capacity limits; use overload protection devices

工业生态与工程逻辑

0
Excessive wear leading to increased clearance and mechanism slop
1
Corrosion in harsh environments
2
Fatigue failure under cyclic loading
3
Improper installation causing misalignment

合规与检测

tolerance
Pin diameter: h7/h8 tolerance, Bushing bore: H7/H8 tolerance, Clearance fit: 0.05-0.15 mm depending on application
test method
Dimensional inspection per ISO 286-2, Hardness testing per ISO 6508, Load testing per ISO 4378-1, Wear testing per ASTM G99

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 a pivot pin and a bushing?

A pivot pin is the solid shaft that provides the axis of rotation, while a bushing is the sleeve that fits between the pin and the housing to reduce friction and wear.

How often should pivot pins and bushings be inspected?

Inspect every 250-500 operating hours or during routine maintenance cycles. Check for wear, corrosion, and proper lubrication.

Can worn bushings be replaced without replacing the pin?

Yes, bushings are typically designed as replaceable wear components. However, always inspect the pin for damage and replace if necessary to ensure proper fit.

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CNFX Industrial Component Index · 机械和设备制造

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
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URN:CNFX:ME:UNIT:PIVOT_PINS_BUSHINGS