Single Helical Gear Speed Reducers Gear Box For General Industry
Applications
1) Description of Helical Gears
Helical gears are similar to spur gears except that their teeth are
cut at an angle to the hole (axis) rather
than straight and parallel to the hole like the teeth of a spur
gear. The line of contact between two teeth
is not parallel to the teeth but inclined.
2) Applications of Helical Gear
Steel, rolling mills, power and port applications. Printing
industries, fertilizer industries, and earth-moving
industries. Plastic industries, textile industries, food
industries, elevators, conveyors, compressors, blowers,
oil industries, and cutters.
| Products | Gear Box/ Gear Reducer |
| Custom Made | √ |
| Gear Profile Type | Double Helical Gear |
| Gear Teeth manufacturing | Gear Hobbing/ Gear Grinding |
| Gear Teeth Grinding | √ |
| Module (M) | Custom |
| Number of Teeth (Z) | Custom |
| Pressure Angle (α) | 20°/ 14.5° |
| Helix Angle (β) | Custom |
| Teeth Accuracy Grade | ISO 6-7 Grade |
| Heat Treatment | Carburizing/Cement Quenching/Nitriding |
| 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 | |
