行业组件数据 · 2026

输出轴/联轴器

Output shaft/coupling is a mechanical component that transmits torque from a drive mechanism to driven equipment while accommodating misalignment.

技术定义与适配语境
典型 输出轴/联轴器 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。

The output shaft/coupling is a critical power transmission component in drive mechanisms (motor & gearbox systems) that serves as the interface between the drive unit and the driven load. It consists of a shaft extension from the gearbox output and a coupling device that connects to the driven equipment. This component must withstand torsional loads, transmit rotational motion efficiently, and compensate for axial, radial, and angular misalignment between connected shafts. In industrial applications, it ensures smooth power transfer while protecting both driving and driven components from shock loads and vibration.

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组件规格

定义
The output shaft/coupling is a critical power transmission component in drive mechanisms (motor & gearbox systems) that serves as the interface between the drive unit and the driven load. It consists of a shaft extension from the gearbox output and a coupling device that connects to the driven equipment. This component must withstand torsional loads, transmit rotational motion efficiently, and compensate for axial, radial, and angular misalignment between connected shafts. In industrial applications, it ensures smooth power transfer while protecting both driving and driven components from shock loads and vibration.
工作原理
The output shaft rotates with the gearbox output, transmitting torque through mechanical connection. The coupling portion uses flexible elements (elastomeric, metallic, or mechanical linkages) to accommodate misalignment while maintaining torque transmission. Common working principles include: 1) Flexible disc couplings use metallic discs that flex under misalignment; 2) Gear couplings transmit torque through meshing gear teeth with clearance for angular movement; 3) Elastomeric couplings use rubber/polyurethane elements that compress and shear to accommodate misalignment; 4) Universal joints use cross-shaped bearings for angular flexibility. All designs maintain continuous rotational power transmission while allowing for installation tolerances and operational movement.
材料
Shaft: Typically alloy steel (AISI 41404340) or carbon steel (C45) with surface hardening (induction hardening or nitriding). Coupling hubs: Forged steel (AISI 10454140) or ductile iron (GGG40GGG50). Flexible elements: PolyurethaneHytrelnatural rubber (for elastomeric couplings)Stainless steel (AISI 304316) or alloy steel discs (for metallic flexible couplings)Bronze or hardened steel gears (for gear couplings). Fasteners: Grade 8.8 or 10.9 steel bolts with corrosion protection.
Backlash
0-0.2° (depending on type)
Max Speed
100-10000 rpm
Bore Sizes
10-250mm diameter
Balance Grade
G6.3 per ISO 1940
Torque Capacity
50-50000 Nm
Keyway Standards
ISO 773, DIN 6885
Temperature Range
-40°C to +120°C
Misalignment Compensation
Axial: ±2-10mm, Radial: 0.5-3mm, Angular: 0.5-3°
标准
ISO 14691ISO 10441DIN 740DIN 115AGMA 9000

行业分类与别名

输出轴/联轴器 的常用贸易名称、技术标识和检索关键词。

output shaftshaft couplinggearbox couplingflexible couplingpower transmissiontorque transmissionshaft misalignmentdrive mechanismmotor couplingindustrial coupling输出轴/联轴器Output Shaft/Coupling机械和设备制造 输出轴/联轴器

上级产品

该组件会出现在以下整机或工业产品中。

执行器（如气动缸、电动机）
一种将能量转化为机械运动以驱动阀杆的装置。
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执行器（手动或自动）
一种用于操作隔离阀以控制流体流动的机械或机电装置。
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储能机构（例如：电机与齿轮箱）
一种机械或机电子系统，用于在弹簧组件驱动系统中储存势能。
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驱动机构（电机与齿轮箱）
为泵机构提供受控旋转动力的机电组件。
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加热/冷却执行器
一种将控制信号转换为机械运动，以调节温度控制系统内加热或冷却元件的装置。
查看产品详情 ->

FMEA · 风险与缓解

诱因 → 失效模式 → 工程缓解

Improper alignment during installation->Excessive vibration, bearing overload, coupling element fatigue->Use laser alignment tools during installation, implement regular alignment checks, install flexible couplings with adequate misalignment capacity
Insufficient torque rating for application loads->Coupling fracture, keyway shearing, bolt failure->Apply appropriate service factors (1.5-2.0), consider peak/shock loads in selection, use torque limiters or shear pins for overload protection
Lack of lubrication in gear-type couplings->Gear tooth wear, increased backlash, overheating->Establish preventive maintenance schedule, use automatic lubricators, select maintenance-free coupling types where appropriate

工业生态与工程逻辑

兼容对象
Industrial gearboxesElectric motorsPumpsCompressorsConveyorsMixersFans and blowers
可替换件
SKFLovejoyR+W CouplingKTRVoith TurboREICH-KUPPLUNGENMayrZero-Max
0
Shaft misalignment causing premature bearing failure
1
Insufficient torque capacity leading to coupling fracture
2
Corrosion in harsh environments reducing service life
3
Resonant vibration at critical speeds
4
Improper installation causing imbalance and vibration
5
Thermal expansion mismatch between materials

合规与检测

tolerance
Shaft diameters: h7/h6 tolerance per ISO 286, Keyways: ISO 773 tolerance class, Bore concentricity: 0.05mm TIR maximum, Face runout: 0.03mm maximum
test method
Dynamic balance testing per ISO 1940-1, Torque testing to 150% of rated capacity, Fatigue testing with cyclic loading, Misalignment capability verification, Temperature cycling tests, Salt spray testing for corrosion resistance per ISO 9227

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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。

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样品室检修门
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常见问题

What is the difference between rigid and flexible couplings for output shafts?

Rigid couplings provide direct, fixed connection with no misalignment compensation, requiring perfect shaft alignment. Flexible couplings accommodate misalignment (axial, radial, angular) through elastic elements or mechanical linkages, protecting equipment from alignment errors and vibration. Most industrial applications use flexible couplings due to practical installation tolerances and operational movements.

How do I select the right output shaft/coupling for my application?

Selection requires calculating: 1) Maximum torque (including shock loads), 2) Operating speed (rpm), 3) Type and amount of misalignment, 4) Environmental conditions (temperature, chemicals), 5) Space constraints, 6) Required service life. Always consult manufacturer catalogs and use selection software that applies appropriate service factors (typically 1.5-2.0 for industrial applications).

What maintenance is required for output shaft couplings?

Regular inspection for: 1) Lubrication (for gear couplings - every 6-12 months), 2) Wear of flexible elements (elastomeric - check for cracks every 3-6 months), 3) Bolt tightness (check torque quarterly), 4) Alignment verification (annually or after maintenance), 5) Vibration monitoring. Maintenance-free couplings exist but still require periodic visual inspection.

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CNFX Industrial Component Index · 机械和设备制造

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