行业组件数据 · 2026

衬套

A bushing is a cylindrical component that reduces friction and wear between moving parts in track chain assemblies.

技术定义与适配语境
典型 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。

A bushing is a precision-engineered cylindrical sleeve designed to serve as a bearing surface between the pin and link plates in track chain systems. It provides a sacrificial wear surface, absorbs radial loads, and maintains proper alignment while minimizing metal-to-metal contact. Bushings are critical for extending the service life of track chains by distributing stress and preventing premature failure of more expensive components.

组件规格

定义
A bushing is a precision-engineered cylindrical sleeve designed to serve as a bearing surface between the pin and link plates in track chain systems. It provides a sacrificial wear surface, absorbs radial loads, and maintains proper alignment while minimizing metal-to-metal contact. Bushings are critical for extending the service life of track chains by distributing stress and preventing premature failure of more expensive components.
工作原理
The bushing operates on the principle of providing a low-friction interface between rotating or sliding surfaces. In track chains, it rotates around the stationary pin while the track links move, creating a bearing surface that converts sliding friction into more manageable rolling or controlled friction. This reduces heat generation, wear, and energy loss while maintaining structural integrity under heavy loads and harsh environmental conditions.
材料
Typically made from case-hardened alloy steel (e.g.AISI 86204140) with surface hardness of 55-62 HRC and core toughness of 25-35 HRC. Advanced versions may use through-hardened steelsboron steelsor composite materials with wear-resistant coatings like chrome plating or induction hardening.
Length
40-200 mm
Hardness
55-62 HRC surface
Load Capacity
Up to 500 kN
Inner Diameter
20-100 mm
Outer Diameter
30-150 mm
Surface Finish
Ra 0.8-1.6 μm
Operating Temperature
-40°C to 120°C
标准
ISO 286-2DIN 1494ISO 5753SAE J429

行业分类与别名

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

Insufficient or contaminated lubrication->Accelerated wear, overheating, and eventual seizure->Implement regular lubrication schedules with proper filtration systems and use sealed bushing designs where possible
Excessive side loading or misalignment->Uneven wear patterns, reduced service life, and potential catastrophic failure->Ensure proper installation alignment, use precision mounting tools, and implement regular alignment checks
Material defects or improper heat treatment->Premature cracking, spalling, or deformation under load->Implement strict quality control measures, material certification, and non-destructive testing during manufacturing

工业生态与工程逻辑

0
Premature wear due to inadequate lubrication
1
Seizure from contamination ingress
2
Fatigue cracking under cyclic loading
3
Improper installation causing misalignment

合规与检测

tolerance
IT7-IT8 for diameter tolerances, concentricity within 0.05 mm, straightness within 0.1 mm per 100 mm length
test method
Dimensional verification per ISO 286-2, hardness testing per ISO 6508, non-destructive testing (MPI/UT), 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 primary function of a bushing in a track chain?

The primary function is to provide a sacrificial wear surface between the pin and link plates, reducing friction, distributing loads, and extending the overall service life of the track chain assembly.

How often should track chain bushings be inspected?

Bushings should be inspected every 250-500 operating hours or according to manufacturer recommendations. Regular inspection includes checking for wear patterns, cracks, and proper lubrication.

Can worn bushings be repaired or must they be replaced?

Bushings are typically replaced rather than repaired due to their role as sacrificial components. Attempting to repair worn bushings can compromise structural integrity and lead to catastrophic failure.

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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
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: 衬套

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。

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URN:CNFX:ME:UNIT:BUSHING