4 Module 43T Double Helical Gears with ISO 8-9 Grade for Speed Reducer
Brand Name:YIZGEAR
Model Number:DB22082202
Minimum Order Quantity:1 Piece
Delivery Time:75 Days
Payment Terms:L/C,D/P,T/T,Western Union
Place of Origin:CHINA
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Zhengzhou China
Address:
Taihong 19# South SongShan Road, Erqi Distict, Zhengzhou, China.
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Product Details
DIN 18CrNiMo7 Steel 4 Module 43T Double Helical Gears For Speed Reducer
1) Description of double helical gear
The double helical gear consists of two identical gears articulated on the same shaft and with teeth in opposite directions.
(one has a left-hand helix and the other has a right-hand helix).
2) Characteristics of double helical gear
- The resulting thrust force developed in a double helical gear is zero.
- The double helical gear can transmit greater power.
- The high helix angle can be used advantageously in double helical gears.
- The double helical gear can provide greater efficiency.
Technical Specifications
| Parameter | Specification |
|---|---|
| Custom Made | Available |
| Gear Profile Type | Cylindrical Gear |
| Manufacturing Process | Gear Milling & Gear Teeth Hobbing |
| Teeth Grinding | Included |
| Module (M) | Custom |
| Number of Teeth (Z) | 43 |
| Pressure Angle (α) | 20° |
| Lead Angle | 31° |
| Accuracy Grade | ISO 8-9 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 |
Production Equipment
Manufacturing Process
4 Module 43T Double Helical Gears with ISO 8-9 Grade for Speed Reducer
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