行业组件数据 · 2026

安装孔

A precisely machined bore in a forged gear blank designed for secure mounting and alignment in mechanical assemblies.

技术定义与适配语境
典型 安装孔 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。

A mounting bore is a critical cylindrical feature machined into a precision forged gear blank, typically serving as the primary interface for attaching the gear to a shaft or hub. It ensures proper concentricity, torque transmission, and axial positioning within mechanical power transmission systems. The bore's dimensions, surface finish, and geometric tolerances are precisely controlled to maintain alignment with gear teeth and prevent operational issues like vibration or premature wear.

组件规格

定义
A mounting bore is a critical cylindrical feature machined into a precision forged gear blank, typically serving as the primary interface for attaching the gear to a shaft or hub. It ensures proper concentricity, torque transmission, and axial positioning within mechanical power transmission systems. The bore's dimensions, surface finish, and geometric tolerances are precisely controlled to maintain alignment with gear teeth and prevent operational issues like vibration or premature wear.
工作原理
The mounting bore functions by providing a precise interference or clearance fit with a mating shaft, secured via mechanical fasteners (e.g., keys, splines, or set screws). It transfers rotational forces from the gear teeth to the shaft while maintaining radial and axial alignment through controlled tolerances and surface contact. In operation, it ensures minimal runout and balanced load distribution across the gear-shaft interface.
材料
Typically matches the gear blank material: alloy steels (e.g.AISI 41404340)carbon steelsor specialty alloys. Hardness ranges from 28-45 HRC post-heat treatment. Surface treatments may include nitriding or carburizing for wear resistance.
Depth
As per gear width specifications
Roundness
≤ 0.01 mm
Concentricity
≤ 0.02 mm relative to pitch diameter
Surface Finish
Ra 1.6 μm or better
Diameter Tolerance
H7 or tighter
标准
ISO 286DIN 7154ISO 1101

行业分类与别名

安装孔 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

Improper machining tolerances->Shaft misalignment and excessive vibration->Implement statistical process control (SPC) and regular gauge calibration
Material fatigue or corrosion->Bore deformation or cracking under load->Use corrosion-resistant materials and apply protective coatings

工业生态与工程逻辑

0
Misalignment causing gear wear
1
Inadequate fit leading to slippage
2
Surface defects inducing stress concentrations

合规与检测

tolerance
ISO 286 for dimensional tolerances, ISO 1101 for geometric tolerances
test method
Coordinate measuring machines (CMM), bore gauges, surface profilometers

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 mounting bore in a gear blank?

It provides a precise interface for attaching the gear to a shaft, ensuring accurate alignment, torque transmission, and minimal vibration in mechanical systems.

How are mounting bores typically secured to shafts?

Common methods include keyways, splines, tapered fits, or set screws, chosen based on torque requirements and assembly/disassembly needs.

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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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请求制造能力信息: 安装孔

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:MOUNTING_BORE