行业组件数据 · 2026

循环滚珠

Recirculating balls are precision spherical elements that circulate within ball screw or rack & pinion systems to convert rotary motion into linear motion with minimal friction.

技术定义与适配语境
典型 循环滚珠 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。

Recirculating balls are hardened steel or ceramic spheres that travel through a closed-loop circuit within ball screw nuts or rack & pinion assemblies. They roll between the screw/rack and nut/pinion surfaces, distributing load evenly across multiple contact points to achieve smooth linear motion with efficiencies exceeding 90%. The balls exit the load zone, travel through return tubes or deflectors, and re-enter the circuit continuously during operation.

组件规格

定义
Recirculating balls are hardened steel or ceramic spheres that travel through a closed-loop circuit within ball screw nuts or rack & pinion assemblies. They roll between the screw/rack and nut/pinion surfaces, distributing load evenly across multiple contact points to achieve smooth linear motion with efficiencies exceeding 90%. The balls exit the load zone, travel through return tubes or deflectors, and re-enter the circuit continuously during operation.
工作原理
The balls roll along helical grooves in ball screws or linear tracks in rack & pinion systems, carrying axial loads while minimizing sliding friction. As the screw rotates or pinion moves, balls circulate through load-bearing zones and return passages, creating a continuous rolling motion that converts rotational force into precise linear displacement with high mechanical efficiency.
材料
Through-hardened bearing steel (AISI 52100/SUJ2)stainless steel (440C)ceramic (silicon nitride Si3N4)or coated variants with treatments like black oxide or chromium plating for corrosion resistance.
Grade
G10 to G100 (ISO 3290)
Hardness
58-65 HRC (steel), 75-80 HRC (ceramic)
Diameter Range
1mm to 50mm
Surface Roughness
Ra ≤0.01μm
Sphericity Tolerance
≤0.08μm for precision grades
标准
ISO 3290DIN 5401JIS B 1501ABMA 10

行业分类与别名

循环滚珠 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

Particle contamination in lubrication->Surface pitting and increased friction->Implement filtration systems and sealed housings
Excessive preload or axial overload->Plastic deformation and brinelling->Install overload protection devices and torque limiters

工业生态与工程逻辑

0
Contamination leading to abrasive wear
1
Fatigue failure under cyclic loading
2
Corrosion in harsh environments
3
Geometric inaccuracies causing binding

合规与检测

tolerance
Diameter tolerance: ±0.0005mm for precision grade, sphericity ≤0.08μm
test method
Coordinate measuring machine (CMM) verification, surface roughness testing per ISO 4287, hardness testing per ISO 6508

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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

What causes premature wear in recirculating balls?

Contamination from debris, inadequate lubrication, misalignment causing uneven load distribution, or material fatigue from cyclic stress beyond design limits.

Can ceramic balls replace steel balls in existing systems?

Yes, but requires verification of dimensional compatibility and load capacity. Ceramic offers higher stiffness and corrosion resistance but may require different lubrication protocols.

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CNFX Industrial Component Index · 机械和设备制造

数据基础

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URN:CNFX:ME:UNIT:RECIRCULATING_BALLS