Henan Yizhi Machinery Co., Ltd
| Payment Terms | L/C, T/T |
| Supply Ability | 500 Sets/Month |
| Delivery Time | 30 Days |
| Packaging Details | Plywood Crate |
| Quality Grade | ISO 8-9 |
| Material | Steel |
| Manufacture | Gear Hobbing |
| Size | Various sizes available |
| Tooth Accuracy | ISO 8-9 |
| Number Of Teeth | Depends on size |
| Profile Type | Double Helical Gear |
| Brand Name | YIZGEAR |
| Place of Origin | CHINA |
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Product Specification
| Payment Terms | L/C, T/T | Supply Ability | 500 Sets/Month |
| Delivery Time | 30 Days | Packaging Details | Plywood Crate |
| Quality Grade | ISO 8-9 | Material | Steel |
| Manufacture | Gear Hobbing | Size | Various sizes available |
| Tooth Accuracy | ISO 8-9 | Number Of Teeth | Depends on size |
| Profile Type | Double Helical Gear | Brand Name | YIZGEAR |
| Place of Origin | CHINA | ||
| High Light | Steel double helical gears ISO 8-9 ，High-power transmission helical gears ，Double helical gears with warranty | ||
1) Description of Double Helical Gear
From the perspective of the relationship between power transfer efficiency and structural size, double helical gear is a form of gear
that can transmit more power in a unit volume, and the power density is improved by optimizing the tooth layout and force distribution.
2) Feature of Double Helical Gear
The transmission power is greater under the same size, and the symmetrical distribution of the teeth makes the contact stress
on the tooth surface more uniform and the material utilization rate is high. The structure is compact, and it can achieve high-power transmission
in a limited space and reduce the overall volume of the equipment. It has strong overload resistance and can be jointly borne by multiple sets of wheel teeth.
3) Working Principle
When subjected to high power input, the symmetrical teeth of the double helical gear engage with the multiple tooth surfaces of the paired gear
at the same time, distributing the torque to more contact points and reducing the load per unit tooth surface, thereby achieving efficient high-power transmission
in a smaller structure size and avoiding excessive wear or breakage of the tooth surface.
4) Application of Double Helical Gear
Equipment that requires the transmission of ultra-high power in a compact space, such as reduction gearboxes commonly used in ship propulsion systems
and speed boosters for large wind turbines.
| Products | Double Helical Gear |
| Custom Made | √ |
| Gear Profile Type | Cylindrical Gear |
| Manufacturing | Gear Milling |
| Teeth Grinding | √ |
| DP | Custom |
| Number of Teeth (Z) | Custom |
| Pressure Angle (α) | Custom |
| Lead Angle | Custom |
| Teeth Accuracy Grade | ISO 9 Grade |
| Heat Treatment | Quenching & Tempering |
| Surface Hardness | 260-300HB |
| 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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