行业组件数据 · 2026

紧定螺钉孔

Precision machined holes in hubs designed to accommodate set screws for secure component attachment and torque transmission.

技术定义与适配语境
典型 紧定螺钉孔 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。

Set screw holes are precisely engineered cylindrical or threaded cavities machined into hub components, typically positioned radially or axially to accept set screws. These holes serve as anchoring points where set screws exert clamping force against shafts, gears, or other mating components to prevent relative motion, transmit torque, and maintain precise alignment in mechanical assemblies. The holes are characterized by specific thread specifications, depth, diameter, and positional accuracy relative to the hub's centerline.

组件规格

定义
Set screw holes are precisely engineered cylindrical or threaded cavities machined into hub components, typically positioned radially or axially to accept set screws. These holes serve as anchoring points where set screws exert clamping force against shafts, gears, or other mating components to prevent relative motion, transmit torque, and maintain precise alignment in mechanical assemblies. The holes are characterized by specific thread specifications, depth, diameter, and positional accuracy relative to the hub's centerline.
工作原理
Set screw holes function by providing a threaded interface where set screws can be tightened to create radial pressure against a shaft or component. The screw's tip (flat, cup, cone, or knurled) engages with the mating surface, generating friction and mechanical interference that prevents rotational slippage and axial movement. The hole's thread geometry converts rotational torque from the screwdriver into linear clamping force, while the hole's depth and diameter ensure proper screw engagement without compromising hub structural integrity.
材料
Typically machined into the same material as the hub: carbon steel (AISI 10181045)alloy steel (41404340)stainless steel (304316)aluminum (6061-T67075)or ductile iron. Threads may be cutrolledor tapped with material hardness considerations to prevent stripping.
tolerance
H7 for hole diameter, ±0.1mm positional
hole depth
1.5D to 2.5D (where D is screw diameter)
countersink
82° or 90° for flat head screws when specified
thread size
M3 to M12 metric, #4-40 to 1/2-13 UNC/UNF imperial
thread type
ISO metric coarse/fine, UNC, UNF, BSW
thread class
6H for internal threads
surface finish
Ra 3.2 μm or better
标准
ISO 4762ISO 4026DIN 913DIN 914ASME B18.3

行业分类与别名

紧定螺钉孔 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 thread engagement depth->Screw loosening under vibration or load->Design holes with minimum 1.5D engagement; use thread locking compounds; specify proper tightening torque
Poor hole alignment with mating component->Eccentric loading and premature wear->Implement precise machining tolerances (±0.05mm); use jigs/fixtures; verify alignment during assembly
Material incompatibility between screw and hub->Galvanic corrosion or thread galling->Select compatible materials; use anti-seize compounds; specify protective coatings

工业生态与工程逻辑

0
Thread stripping under excessive torque
1
Stress concentration around hole edges
2
Corrosion in threaded areas
3
Improper alignment causing uneven clamping
4
Fatigue failure from cyclic loading

合规与检测

tolerance
Positional tolerance ±0.1mm, thread pitch diameter tolerance per ISO 965-1 6H class
test method
Go/no-go thread gauging, coordinate measuring machine (CMM) verification, torque-to-failure testing, vibration testing per ISO 16047

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 set screw holes in hubs?

To provide secure threaded anchoring points for set screws that prevent relative rotation and axial movement between the hub and mating components like shafts or gears.

How deep should a set screw hole be machined?

Typically 1.5 to 2.5 times the screw diameter to ensure sufficient thread engagement without weakening the hub wall, with exact depth depending on material and load requirements.

Can set screw holes be added to existing hubs?

Yes, through drilling and tapping operations, but careful consideration must be given to wall thickness, existing stress concentrations, and alignment with mating components.

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CNFX Industrial Component Index · 机械和设备制造

数据基础

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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: 紧定螺钉孔

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:SET_SCREW_HOLES