Henan Yizhi Machinery Co., Ltd
| Payment Terms | L/C, T/T, Western Union, D/P |
| Supply Ability | 600 Sets/Month |
| Delivery Time | 58 Days |
| Packaging Details | Plywood Crate |
| Material | Nodular cast iron |
| Profile Type | ZA |
| Outer Diameter | 31.5mm |
| Length | 267 |
| Face width | 36 |
| Module | 1.5 |
| Brand Name | YIZGEAR |
| Model Number | WG220801001 |
| Place of Origin | CHINA |
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Product Specification
| Payment Terms | L/C, T/T, Western Union, D/P | Supply Ability | 600 Sets/Month |
| Delivery Time | 58 Days | Packaging Details | Plywood Crate |
| Material | Nodular cast iron | Profile Type | ZA |
| Outer Diameter | 31.5mm | Length | 267 |
| Face width | 36 | Module | 1.5 |
| Brand Name | YIZGEAR | Model Number | WG220801001 |
| Place of Origin | CHINA | ||
| High Light | Nodular Worm Wheel And Worm Shaft ，ZA Type worm wheel shaft ，1.5 Module worm wheel shaft | ||
ZA Type 1.5 Module Nodular Cast Iron Worm Gear Wheel and Worm Shaft Set
1) Description of worm shaft and worm gear
Worm shaft is a shank haveing at least one complete thread aournd the pitch surface and is the driver
of a worm wheel.
2) Type of Worm shaft and worm gear
a) Cylindrical Worm Gear Pair
Worm gear pair is the name for a meshed worm and worm wheel.
An outstanding feature is that it offers a very large gear ratio in a single mesh.
It also provides quiet and smooth action.
However, transmission efficiency is poor.
b) Enveloping Gear Pair
This worm set uses a special worm shape that partially envelops the worm gear as viewed in the direction
of the worm gear axis.
Its big advantage over the standard worm is much higher load capacity.
However, the worm gear is very complicated to design and produce.
| Products | Worm Gears & Worm Shafts |
| Custom Made | √ |
| Gear Profile Type | Worm Gear |
| Manufacturing | Gear Hobbing |
| Teeth Grinding | √ |
| Module (M) | Custom |
| Number of Teeth (Z) | Custom |
| Pressure Angle (α) | Custom |
| Lead Angle | Custom |
| Teeth Accuracy Grade | ISO 6 Grade |
| Heat Treatment | Carburizing |
| Surface Hardness | 58-62 HRC |
| 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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