Henan Yizhi Machinery Co., Ltd
| Payment Terms | L/C, T/T |
| Supply Ability | 500 Sets/Month |
| Delivery Time | 60 Days |
| Packaging Details | Plywood Crate |
| Quality Grade | ISO 8-9 Grade |
| Tooth Profile | Standard |
| Material | Steel |
| Gear Profile | Internal Gear |
| Profile | Inner Gear Ring |
| Module | 4 |
| 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 |
| Quality Grade | ISO 8-9 Grade | Tooth Profile | Standard |
| Material | Steel | Gear Profile | Internal Gear |
| Profile | Inner Gear Ring | Module | 4 |
| Brand Name | YIZGEAR | Place of Origin | CHINA |
| High Light | 25 Module Internal Gear ，Equipment Internal Gear ，Machinery Internal Gear | ||
1)Descriptions of Internal Gear
Internal spur gears are widely used as transmission components in devices such as reducers, planetary gearboxes, and slewing bearings.
2)Features of Internal Gear
a) The processing of internal gears is more difficult than that of external gears. Special tools are required to avoid interference.
b) Hardness and precision are usually enhanced through processes such as quenching and gear grinding.
3)Advantages of Internal Gear
a) Multifunctional integration: Capable of simultaneously performing the functions of transmission and support.
b) Adapt to complex layouts: The internal meshing enables a coaxial design for power input/output, simplifying the system structure.
| Products | Internal Gear |
| Custom Made | √ |
| Gear Profile Type | Cylindrical Gear |
| Gear Teeth manufacturing | Gear Shaping |
| Gear Teeth Grinding | If needed |
| Module (M) | 0.5-25 |
| Number of Teeth (Z) | Custom |
| Pressure Angle (α) | 20° |
| Helix Angle (β) | 0 |
| Teeth Accuracy Grade | ISO 8-9 Grade |
| Heat Treatment | Quenching & Tempering |
| Hardness | 230-260 HB |
| 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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