Henan Yizhi Machinery Co., Ltd
| Payment Terms | T/T,L/C |
| Supply Ability | 500 Sets/Month |
| Delivery Time | 62 Days |
| Packaging Details | Plywood Crate |
| Module | 7 |
| Type | Double Helical Gear |
| Pressure Angle | 20° |
| Material | 40CrNiMo |
| Heat Treatment | Carburizing |
| Gear Width | 52 |
| Brand Name | YIZGEAR |
| Model Number | GS20220822901 |
| Place of Origin | CHINA |
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Product Specification
| Payment Terms | T/T,L/C | Supply Ability | 500 Sets/Month |
| Delivery Time | 62 Days | Packaging Details | Plywood Crate |
| Module | 7 | Type | Double Helical Gear |
| Pressure Angle | 20° | Material | 40CrNiMo |
| Heat Treatment | Carburizing | Gear Width | 52 |
| Brand Name | YIZGEAR | Model Number | GS20220822901 |
| Place of Origin | CHINA | ||
| High Light | Customized Transmission Gears ，Forging Steel Double Helical Gear Shaft ，Transmission Double Helical Gear Shaft | ||
1) Description of Double Helical Gear Shaft
Double Helical Gear Shaft is a transmission component designed by integrating double helical gears and shafts,
which has the transmission advantages of double helical gears and the support function of shaft parts,
and is widely used in industrial transmission systems with high precision and high load.
2) Working Principle of Double Helical Gear Shaft
The double helical gear shaft transmits motion and power through tooth surface meshing: when meshing with a paired gear,
the left and right helical teeth are in contact with the corresponding helical tooth surface of the paired gear respectively to
transmit torque; Due to the opposite rotation of the left and right helical teeth, the axial force generated by a single helical gear
when working will be offset by the axial force in the other direction, achieving axial force balance without the need for
additional thrust bearings to bear axial loads.
3) Feature of Double Helical Gear Shaft
a) No axial force: The double helix structure offsets the axial thrust of the unilateral helical gear, reducing the load on the bearing
and extending the service life of the transmission system, especially suitable for high-speed operation scenarios.
b) High load-bearing capacity: The tooth surface contact line is long and evenly distributed, and the number of teeth meshing is more,
which can transmit greater torque and power, which is more than 30% higher than the bearing capacity of spur gear bearings.
c) Good stability: The gradual meshing characteristics of helical gears reduce shock and vibration, coupled with the symmetrical design
of the double helix, the transmission noise is lower, the operation is more smooth, and it is suitable for high-precision equipment .
d) Compact structure: The integrated design of gears and shafts reduces the number of parts, saves installation space,
and improves overall rigidity, making it suitable for transmission systems that require high rigidity.
4) Application of Double Helical Gear Shaft
a) Heavy machinery
b) Power equipment
c) Precision machine tools
d) Ships and aviation
| Products | Double Helical Gear Shaft |
| Custom Made | √ |
| Material | 40CrNiMo |
| Gear Teeth manufacturing | Gear Milling |
| Gear Teeth Grinding | √ |
| Module (M) | 7 |
| Pressure Angle (α) | 20° |
| Helix Angle (β) | 18° |
| Teeth Accuracy Grade | ISO 8-9 Grade/ AGMA 11Grade |
| Heat Treatment | √ |
| Surface Hardness | √ |
| 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 | |
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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