行业组件数据 · 2026

配重块

Counterweights are precision-engineered components that balance rotating systems by offsetting eccentric masses to minimize vibration and ensure smooth operation.

技术定义与适配语境
典型 配重块 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。

Counterweights are mass elements strategically attached to rotating shafts, particularly eccentric shafts or cranks, to counteract unbalanced forces caused by off-center masses. They are engineered to achieve dynamic balance by creating an opposing centrifugal force that neutralizes vibrations, reduces bearing loads, and prevents premature mechanical failure. In industrial machinery, they are critical for maintaining operational stability, reducing noise, and extending equipment lifespan.

组件规格

定义
Counterweights are mass elements strategically attached to rotating shafts, particularly eccentric shafts or cranks, to counteract unbalanced forces caused by off-center masses. They are engineered to achieve dynamic balance by creating an opposing centrifugal force that neutralizes vibrations, reduces bearing loads, and prevents premature mechanical failure. In industrial machinery, they are critical for maintaining operational stability, reducing noise, and extending equipment lifespan.
工作原理
Counterweights operate on the principle of static and dynamic balancing. By adding mass at specific radial positions opposite to the eccentric load, they generate a centrifugal force equal in magnitude but opposite in direction to the force produced by the unbalanced mass. This cancels out net vibrational forces and moments, ensuring the system's center of mass aligns with the axis of rotation for smooth, vibration-free operation.
材料
Typically made from high-density materials such as cast ironsteel alloys (e.g.AISI 10454140)or tungsten alloys for compact designs. Materials are selected based on required densitycorrosion resistancemachinabilityand cost-effectiveness.
Tolerance
±0.5% of specified mass
Mass Range
0.5 kg to 500 kg
Mounting Type
Bolted, welded, or clamped
Surface Finish
Ra 3.2 μm or better
Operating Temperature
-20°C to 150°C
标准
ISO 1940-1ISO 21940-11DIN 45665

行业分类与别名

配重块 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

Incorrect mass calculation or installation->Persistent vibration leading to bearing failure->Use calibrated balancing equipment and follow ISO 1940 standards during installation
Corrosion or material degradation->Reduced mass integrity and imbalance->Apply protective coatings and use corrosion-resistant materials

工业生态与工程逻辑

0
Improper balancing causing excessive vibration
1
Material fatigue from cyclic loading
2
Corrosion in harsh environments
3
Loosening of mounting hardware

合规与检测

tolerance
Balance quality grade G6.3 per ISO 1940-1 for general industrial machinery
test method
Dynamic balancing testing using balancing machines, with verification per ISO 21940-11

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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

Why are counterweights necessary in eccentric shafts?

Counterweights are essential to balance the uneven mass distribution caused by the offset design of eccentric shafts, preventing excessive vibrations that can lead to bearing wear, structural fatigue, and operational inefficiency.

How are counterweights designed for specific applications?

Design involves calculating the required mass and position based on the eccentric mass, rotational speed, and desired balance quality per standards like ISO 1940, often using CAD and simulation tools for precision.

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CNFX Industrial Component Index · 机械和设备制造

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