Henan Yizhi Machinery Co., Ltd
| Payment Terms | L/C, T/T |
| Supply Ability | 500 Sets/Month |
| Delivery Time | 30 Days |
| Packaging Details | Plywood Crate |
| Accuracy | DIN 6-10 |
| Load Capacity | Depends on size and material |
| Profile Type | Double Helical Gear |
| Center Distance | Customized |
| Size | Customized |
| Precision Grade | Dependent on application |
| 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 |
| Accuracy | DIN 6-10 | Load Capacity | Depends on size and material |
| Profile Type | Double Helical Gear | Center Distance | Customized |
| Size | Customized | Precision Grade | Dependent on application |
| Brand Name | YIZGEAR | Place of Origin | CHINA |
| High Light | Custom double helical gears DIN 6-10 ，Industrial machinery helical gears ，DIN standard double helical gears | ||
1) Description of Double Helical Gear
Double helical gears are gear structures composed of two helical gears with opposite helical directions and equal helical angles,
and the two helical gears are symmetrically distributed on the same hub, forming a "human" shape or symmetrical spiral tooth layout.
2) Feature of Double Helical Gear
Completely cancel the axial force, because the spiral direction of the two helical gears is opposite, the generated axial force is balanced
with each other, and there is no need for additional axial positioning device; The meshing process has a very high degree of coincidence,
long contact time and uniform force of the gear teeth, and the transmission stability far exceeds that of single helical gears and spur gears,
and the vibration and noise are significantly reduced.
3) Working Principle
The power is transmitted to the double helical gear through the input shaft, the gear teeth are engaged with the mating gear at a symmetrical helix angle,
and the axial force generated by the left tooth and the reverse axial force generated by the right tooth cancel each other,
and only the radial force of the effective transmission torque is retained, so as to achieve stable power transmission without axial force interference.
4) Application of Double Helical Gear
It is suitable for feed systems of precision CNC machine tools, transmission mechanisms of high-precision textile machinery,
and other equipment that requires strict transmission stability and low noise.
| 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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