行业组件数据 · 2026

同步器

Synchronizers are precision components in manual transmissions that enable smooth gear shifting by equalizing rotational speeds between gears and shafts.

技术定义与适配语境
典型 同步器 会按材料、尺寸公差、适配关系和失效风险在 汽车制造 中评估。

Synchronizers are mechanical devices within manual gearboxes that facilitate gear engagement by synchronizing the rotational speeds of the transmission input shaft and the selected gear before meshing. They consist of a synchronizer ring (blocker ring), hub, sleeve, and sometimes additional friction surfaces, using friction to match speeds and prevent gear clash during shifting.

组件规格

定义
Synchronizers are mechanical devices within manual gearboxes that facilitate gear engagement by synchronizing the rotational speeds of the transmission input shaft and the selected gear before meshing. They consist of a synchronizer ring (blocker ring), hub, sleeve, and sometimes additional friction surfaces, using friction to match speeds and prevent gear clash during shifting.
工作原理
Synchronizers operate on the principle of friction-based speed synchronization. When a gear is selected, the synchronizer ring creates frictional contact with the target gear cone, slowing down or speeding up the gear to match the shaft speed. Once synchronized, the sleeve slides over the synchronizer teeth to lock the gear to the shaft, allowing torque transmission without grinding.
材料
Typically made from high-strength steel alloys (e.g.SAE 41408620) for hubs and sleeveswith synchronizer rings often using brasssintered bronzeor molybdenum-coated steel for friction properties. Some designs incorporate carbon composites or specialized coatings for enhanced durability.
Tooth Count
20-40 teeth
Diameter Range
50-150 mm
Torque Capacity
200-800 Nm
Friction Coefficient
0.08-0.12
Operating Temperature
-40°C to 150°C
标准
ISO 6336DIN 3960SAE J1549

行业分类与别名

同步器 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 or contaminated transmission fluid->Increased friction and overheating, leading to synchronizer ring damage or seizure->Regular fluid changes using manufacturer-specified lubricants and monitoring for contamination
Aggressive or rapid shifting without clutch engagement->Excessive force on synchronizer teeth, causing chipping, bending, or complete fracture->Driver training on proper shifting techniques and using the clutch fully during gear changes

工业生态与工程逻辑

0
Premature wear from improper shifting techniques
1
Overheating due to insufficient lubrication
2
Material fatigue under high-torque conditions
3
Misalignment during assembly causing operational failure

合规与检测

tolerance
Gear tooth profiles must adhere to AGMA Class 8-10 standards; concentricity tolerance within 0.05 mm
test method
Performance tested per ISO 6336 for load capacity, DIN 5480 for spline dimensions, and SAE J1549 for durability under cyclic shifting conditions

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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 is the main function of a synchronizer in a gearbox?

The main function is to equalize the rotational speeds between the transmission shaft and the target gear before engagement, preventing gear clash and ensuring smooth, noiseless shifting.

How do synchronizers wear out over time?

Synchronizers wear primarily due to friction surface degradation, leading to symptoms like difficult shifting, grinding noises, or gear slippage, often caused by aggressive driving, improper lubrication, or material fatigue.

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CNFX Industrial Component Index · 汽车制造

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URN:CNFX:ME:UNIT:SYNCHRONIZERS