Henan Yizhi Machinery Co., Ltd
| Payment Terms | L/C, T/T |
| Supply Ability | 500 Sets/Month |
| Delivery Time | 60 Days |
| Packaging Details | Plywood Crate |
| Manufacturing Process | Gear Milling |
| Tooth Profile | Helical |
| Gear Profile | Double Helical Gear |
| Surface Treatment | Carburizing & Quenching |
| Heat Treatment | Quenching & Tempering |
| Core Hardness | 269-285HB |
| 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 | 60 Days | Packaging Details | Plywood Crate |
| Manufacturing Process | Gear Milling | Tooth Profile | Helical |
| Gear Profile | Double Helical Gear | Surface Treatment | Carburizing & Quenching |
| Heat Treatment | Quenching & Tempering | Core Hardness | 269-285HB |
| Brand Name | YIZGEAR | Place of Origin | CHINA |
| High Light | Custom Made Double Helical Gears ，Specific Gear Profile Double Helical Gears ，16 Double Helical Gears | ||
1)Descriptions of Double Helical Gear
A Double Helical Gear consists of two identical helical gear teeth sets arranged symmetrically with opposite helix angles. This design creates a V-shaped tooth pattern, resembling two mirrored helical gears joined together.
2)Features of Double Helical Gear
The axial (thrust) forces generated by each helix cancel each other out within the gearbox, eliminating net axial load on the bearings.
3)Advantages of Double Helical Gear
a)Eliminated Thrust Force:Opposite helix angles produce counteracting thrust reactions, neutralizing axial forces internally without relying on bearings.
b)Zero Net Axial Load on Bearings:Bearings experience minimal axial stress, enhancing lifespan and reducing design complexity.
c)High Power Transmission Capacity:Double tooth engagement distributes load more evenly than spur or single helical gears, enabling higher torque/power transfer.
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| 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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