1) Description of Worm Gear and worm shaft
Worm shaft is a shank having at least one complete tooth (thread) around the pitch surface and is the driver
of a worm wheel.
Worm wheel is a gear with teeth cut on an angle to be driven by a worm shaft.
The worm gear pair is used to transmit motion between two shafts which are at 90° to each other and lie on
a plane.
2) Features of worm gear and worm shaft
a) Provides large reduction ratios for a given center distance
b) Quiet and smooth meshing action.
Products | Worm Gears & Worm Shafts |
Custom Made | √ |
Gear Profile Type | Worm Gear |
Worm Gear manufacturing | Gear Hobbing |
Worm Shaft Teeth Grinding | √ |
Module (M) | Custom |
Number of Teeth (Z) | Custom |
Pressure Angle (α) | Custom |
Lead Angle | Custom |
Worm Shaft Accuracy Grade | ISO 6 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 |