DIN 18CrNiMo7 Steel 4 Module 77T Double Helical Gears For Gearbox
Brand Name:YIZGEAR
Model Number:DB22082203
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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DIN 18CrNiMo7 Steel 4 Module 77T Double Helical Gears For Gearbox
1) Description of Double Helix Gears
A double helical gear consists of two helix angles with opposite hands. Inside the gears, the axial thrusts oppose each other
and the resulting forces are not transmitted to the bearings on the shaft. This gearpair setup means they can handle high loads
and allow for a solid transmission while running.
2) Features of Double Helix Gears
Double helical gears have all of the advantages of helical gears, which are strong and quiet, plus have the advantage of being able to
cancel the thrust forces by combining helical gears with both right and left hand twists.
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) | 53 |
| 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
DIN 18CrNiMo7 Steel 4 Module 77T Double Helical Gears For Gearbox
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