High-Precision Grinding Transmission Spur Gears for Long Service Life
1.Spur Gear Description
Within the field of miniaturisation, spur gears are core micro-transmission components characterised
by their diminutive dimensions (typically with modules ranging from 0.1 to 1mm) and demanding precision requirements,
finding extensive application in precision micro-devices.
2.Key Features
Characterised by compact dimensions and lightweight construction, these gears achieve tooth profile precision
to IT5-IT7 grades with excellent transmission smoothness. Their advantages include enabling precise speed
and torque transmission within confined spaces, offering rapid response times and low energy dissipation.
They demonstrate strong compatibility with components such as miniature motors and bearings,
facilitating the integration of compact micro-transmission systems.
3.Working Principle
Precision machining techniques (e.g., wire cutting, precision gear hobbing, laser engraving) ensure tooth profile accuracy
and pitch uniformity. When meshing with micro-actuators (e.g., micro-motor shafts), the minimal tooth contact clearance
and high-precision tooth profile engagement enable low-noise, low-vibration power transmission, meeting micro-devices'
demands for transmission precision and compact spatial requirements.
4.Applications
Focus drive systems in smartphone cameras, joint drive gears for micro-robots, fine-adjustment transmission mechanisms
in drone gimbals, micro-transmission gears in medical endoscopes, and counting/adjustment gears in precision instruments.
Technical Specifications
| Products | Spur Gear |
| Custom Made | √ |
| Gear Profile Type | Cylindrical Gears |
| Gear Teeth manufacturing | Gear Grinding |
| Gear Teeth Grinding | √ |
| Module (M) | Custom |
| Number of Teeth (Z) | Custom |
| Pressure Angle (α) | Custom |
| Helix Angle (β) | 0° |
| Teeth Accuracy Grade | ISO 6-7 Grade |
| Heat Treatment | Carburizing |
| Surface Hardness | 58-62 HRC |
Steel Code Grades Comparison
| STEEL CODE GRADES COMPARISON | |||||
| CHINA/GB | ISO | ГΟСТ | ASTM | JIS | DIN |
| 45 | C45E4 | 45 | 1045 | S45C | CK45 |
| 40Cr | 41Cr4 | 40X | 5140 | SCr440 | 41Cr4 |
| 20CrMo | 18CrMo4 | 20ХМ | 4118 | SCM22 | 25CrMo4 |
| 42CrMo | 42CrMo4 | 38XM | 4140 | SCM440 | 42CrMo4 |
| 20CrMnTi | 18XГT | SMK22 | |||
| 20Cr2Ni4 | 20X2H4A | ||||
| 20CrNiMo | 20CrNiMo2 | 20XHM | 8720 | SNCM220 | 21NiCrMo2 |
| 40CrNiMoA | 40XH2MA/ 40XHMA |
4340 | SNCM439 | 40NiCrMo6/ 36NiCrMo4 |
|
| 20CrNi2Mo | 20NiCrMo7 | 20XH2MA | 4320 | SNCM420 | |
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