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 |
| Brand | OEM |
| Pitch | 3.819 |
| Lenth | 2200mm |
| Direction | Left-hand & Right Hand |
| Roughness | Ra 0.8~Ra 1.6 |
| Helix angle | 25° |
| Brand Name | YIZGEAR |
| Model Number | DB220804001 |
| 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 |
| Brand | OEM | Pitch | 3.819 |
| Lenth | 2200mm | Direction | Left-hand & Right Hand |
| Roughness | Ra 0.8~Ra 1.6 | Helix angle | 25° |
| Brand Name | YIZGEAR | Model Number | DB220804001 |
| Place of Origin | CHINA | ||
| High Light | Double Helical Spline Shaft 12 Module ，40CrNiMoA Steel Double Helical shaft ，OEM Double Helical Spline Shaft | ||
Custom-made 12 Module 40CrNiMoA Steel Double Helical Gear Shaft
1) Description of Double Helical Gear
The double helical gear total face is made into two equal halves, both with the same helix angle but with opposite hands.
The axial thrusts are opposite one another, the forces are contained in the gear and not transmitted to the bearing.
2) Feature of double helical gear
Double helical gear forms can balances the inherent thrust forces.
High loading capability and steady transmission are advantaged.
3) Applications of Double Helical Gear
Double helical gears have been widely used for power transmission in gas turbine, generators, prime mover, pump,
fan, and compressor in marine ships and construction machine.
| Products | Double Helical Gear |
| Custom Made | √ |
| Gear Profile Type | Cylindrical Gear |
| Manufacturing | Gear Hobbing |
| Teeth Grinding | √ |
| Module (M) | 12 |
| Number of Teeth (Z) | 25 |
| Pressure Angle (α) | 20° |
| Lead Angle | 15° |
| 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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