1)Descriptions of Double Helix Gears
The double helix gears adopt a symmetrical layout. The helical
teeth of the two groups have opposite rotations (one left and one
right), and their tooth profiles are arranged in a V-shape, similar
to the interlocking helical gears placed back-to-back.
2)Characteristics of Double Helix Gears
When gears are in operation, the axial forces of the helical teeth
on both sides counteract each other, so the bearing does not need
to bear additional axial loads.
3)Advantages of Double Helix Gears
a)Axial force self-compensation: The reverse helical design enables
the thrust force to be automatically neutralized within the gear.
b)Extended bearing life: The axial stress on the bearing is nearly
zero, reducing maintenance requirements.
c)Efficient power transmission: Dual-tooth synchronous meshing
enhances the uniformity of load distribution, suitable for
high-power applications.
| Products | Double Helical Gear | | Custom Made | √ | | Gear Profile Type | Cylindrical Gear | | Manufacturing | Gear Hobbing | | Teeth Grinding | √ | | Module (M) | Custom Made | | Number of Teeth (Z) | 32 | | Pressure Angle (α) | 20° | | Lead Angle | 15° | | Teeth Accuracy Grade | Custom Made | | Heat Treatment | Normalizing | | Surface Hardness | 260HB |
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| 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
