Henan Yizhi Machinery Co., Ltd
| Payment Terms | L/C, D/P, T/T, Western Union |
| Supply Ability | 100 Pieces/Month |
| Delivery Time | 75 Days |
| Packaging Details | Plywood Crate |
| Material | 18CrNiMo7/ 17CrNiMo6 |
| Gear Profile Type | Double Helical Gear |
| Heat Treatment | Carburizing |
| Hardness | 58-62 HRC |
| Manufacturing Process | Gear Teeth Grinding |
| Quality Grade | ISO 6-7 Grade |
| Brand Name | YIZGEAR |
| Model Number | DB22072201 |
| Place of Origin | CHINA |
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Product Specification
| Payment Terms | L/C, D/P, T/T, Western Union | Supply Ability | 100 Pieces/Month |
| Delivery Time | 75 Days | Packaging Details | Plywood Crate |
| Material | 18CrNiMo7/ 17CrNiMo6 | Gear Profile Type | Double Helical Gear |
| Heat Treatment | Carburizing | Hardness | 58-62 HRC |
| Manufacturing Process | Gear Teeth Grinding | Quality Grade | ISO 6-7 Grade |
| Brand Name | YIZGEAR | Model Number | DB22072201 |
| Place of Origin | CHINA | ||
| High Light | 17CrNiMo6 Double Helical Gears ，Gear Grinding Transmission Gears ，4 Module Double Helical Gears | ||
4 Module 17CrNiMo6 gear grinding Doubel Helical Gear of Gear box
1) Description of Double Helical Gear
A gear with both left hand and right hand helcial teeth called double helical gear.
2) Feature of Double Helical Gear
The double helcial gear from balances the inherent thrust forces
3) Heat Treatment of Double Helical Gear
Quenching and Tempering heat treatment is widely used for double helcial gear.
Carburizing heat treatement can also considered for double helcial gear if the gear need gear profle grinding.
| Products | Double Helical Gear |
| Custom Made | √ |
| Gear Profile Type | Cylindrical Gear |
| Manufacturing | Gear Grinding |
| Teeth Grinding | √ |
| Module (M) | 4 |
| Number of Teeth (Z) | 43&77 |
| Pressure Angle (α) | 20° |
| Lead Angle | 31° |
| Teeth Accuracy Grade | ISO 6-7 Grade |
| Heat Treatment | Carburizing |
| Surface Hardness | 58-62 HRC |
| 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 | |
Cutting Milling
Heat Treatment Grinding Inspection
Company Details
Business Type:
Manufacturer,Exporter
Year Established:
2016
Total Annual:
1.0 Million-1.5 Millon
Employee Number:
50~200
Ecer Certification：
Verified Supplier
YIZHI MACHINERY which is equipped with a full range of machining capabilities to satisfy customer needs. Our team has extensive experience in precision gearing systems for numerous industries. We have supplied gears for mining equipment, power tools, hydraulic pumps and the rail transit industry.... YIZHI MACHINERY which is equipped with a full range of machining capabilities to satisfy customer needs. Our team has extensive experience in precision gearing systems for numerous industries. We have supplied gears for mining equipment, power tools, hydraulic pumps and the rail transit industry....
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