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| Place of Origin | CHINA |
| Brand Name | YIZGEAR |
| Model Number | GS2022123101 |
40Cr Alloy Steel Transmission Gears Micro Gear For Small Size Electric Power Tools
1) Description of Micro Gear
The micro gear always menas a small size transmission gear.
The module and external diameter are both small.
The micro gear usually used for compact system design.
2) Features of Micro Gear
The benefit of a micro gear train is that the teeth of the gear engage in small increments as opposed
to the entire face engaging at once.
This reduces the noise that is normally caused as gears transfer power.
| Products | Spur Gear |
| Custom Made | √ |
| Gear Profile Type | 40Cr |
| Gear Teeth manufacturing | Gear Hobbing |
| Gear Teeth Grinding | √ |
| Module (M) | 0.5 |
| Number of Teeth (Z) | |
| Pressure Angle (α) | 20° |
| Helix Angle (β) | 0° |
| Teeth Accuracy Grade | ISO 7-8 Grade |
| Heat Treatment | Quenching & Tempering |
| Surface Hardness | 220-260 HB |
| 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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