行业组件数据 · 2026

行星齿轮

Planet gears are rotating gears in planetary gear systems that mesh with both sun and ring gears to provide torque multiplication and speed reduction.

技术定义与适配语境
典型 行星齿轮 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。

Planet gears are the intermediate gears in a planetary gear arrangement, typically mounted on a carrier that rotates around a central sun gear while simultaneously meshing with an outer ring gear. This configuration allows for compact, high-torque transmission with multiple power paths, making them essential in reduction gear systems for achieving precise speed control and load distribution.

组件规格

定义
Planet gears are the intermediate gears in a planetary gear arrangement, typically mounted on a carrier that rotates around a central sun gear while simultaneously meshing with an outer ring gear. This configuration allows for compact, high-torque transmission with multiple power paths, making them essential in reduction gear systems for achieving precise speed control and load distribution.
工作原理
Planet gears operate on the epicyclic principle, where multiple planet gears rotate around a central sun gear while engaging with a stationary or rotating ring gear. This creates compound motion that multiplies torque and reduces speed through gear ratio relationships, with the carrier's rotation determining output characteristics.
材料
Typically alloy steels (AISI 862041409310) case-hardened to 58-62 HRC for durabilitywith surface treatments like carburizing or nitriding. Alternative materials include powdered metals for cost efficiency or specialized alloys for extreme environments.
Efficiency
95-98%
Module Range
1-10 mm
Load Capacity
Up to 5000 Nm
Tooth Profile
Involute
Accuracy Grade
ISO 1328 Class 5-8
Pressure Angle
20° standard
标准
ISO 1328DIN 3960AGMA 2000

行业分类与别名

行星齿轮 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

Inadequate lubrication->Surface pitting and scoring->Implement automatic lubrication systems with monitoring sensors
Misaligned carrier assembly->Uneven tooth loading and premature wear->Use precision alignment tools during installation and regular laser alignment checks
Material defects or improper heat treatment->Tooth breakage under load->Implement material certification and destructive testing protocols

工业生态与工程逻辑

0
Tooth fatigue failure
1
Misalignment causing uneven wear
2
Insufficient lubrication leading to scoring
3
Carrier bearing failure
4
Thermal expansion issues

合规与检测

tolerance
Tooth profile tolerance ±0.02mm, pitch error <0.03mm, runout <0.05mm
test method
Coordinate measuring machine (CMM) inspection, gear rolling test per AGMA 2000, hardness testing per ISO 6508

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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 main function of planet gears?

Planet gears distribute load across multiple teeth simultaneously, providing high torque capacity, compact design, and smooth power transmission in reduction gear systems.

How do planet gears differ from standard gears?

Unlike fixed-axis gears, planet gears rotate around a central axis while meshing with two other gears (sun and ring), enabling compound motion and superior torque density.

What maintenance do planet gears require?

Regular lubrication with EP gear oils, periodic inspection for tooth wear or pitting, and alignment checks of the carrier assembly to prevent uneven loading.

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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
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URN:CNFX:ME:UNIT:PLANET_GEARS