4 Module 17CrNiMo6 gear grinding Doubel Helical Gear of Gear box
1) Description of Double Helical Gear
A gear with both left hand and right hand helcial teeth
called double helical gear.
2) Feature of Double Helical Gear
The double helcial gear from balances the inherent thrust
forces
3) Heat Treatment of Double Helical Gear
Quenching and Tempering heat treatment is widely used for double
helcial gear.
Carburizing heat treatement can also considered for double helcial
gear if the gear need gear profle grinding.
Products | Double Helical Gear |
Custom Made | √ |
Gear Profile Type | Cylindrical Gear |
Manufacturing | Gear Grinding |
Teeth Grinding | √ |
Module (M) | 4 |
Number of Teeth (Z) | 43&77 |
Pressure Angle (α) | 20° |
Lead Angle | 31° |
Teeth Accuracy Grade | ISO 6-7 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 |
Production Equipment
Production Process
Cutting
Milling
Heat Treatment
Grinding
Inspection