Table 1 Specification of the worm screw and wheel
| Â | Number of thread | Number of teeth | Reference diameter (mm) | Weight (g) |
|---|---|---|---|---|
Worm screw | 2 | – | 16 | 42.0 |
Worm wheel | – | 20 | 20 | 32.0 |
|  | Module | Lead angle (°) | Normal pressure angle (°) | \(\mu \) |
|---|---|---|---|---|
| Â | 1 | 7.18 | 20 | 0.175 |
| Â | Number of thread | Number of teeth | Reference diameter (mm) | Weight (g) |
|---|---|---|---|---|
Worm screw | 2 | – | 16 | 42.0 |
Worm wheel | – | 20 | 20 | 32.0 |
|  | Module | Lead angle (°) | Normal pressure angle (°) | \(\mu \) |
|---|---|---|---|---|
| Â | 1 | 7.18 | 20 | 0.175 |