Table 2 Gear ratio values
From: Attiny85 controlled watch winder for self-winding mechanical watches
Gear ratio | Driver gear | Driven gear | Ratio value |
|---|---|---|---|
\(\Re_{1}\) | \({\mathcal{O}\mathcal{W}}\) | \({\mathcal{P}\mathcal{W}\mathcal{W}}\) | 1:2.58 |
\(\Re_{2}\) | \({\mathcal{P}\mathcal{W}\mathcal{W}}\) | \({\mathcal{R}}{\text{D}}{\mathcal{W} }\) | 9:1 |
\(\Re_{3}\) | \({\mathcal{R}}{\text{D}}{\mathcal{W}}\) | \({\mathcal{R}\mathcal{W}}\) | 5:1 |
\(\Re_{4}\) | \({\mathcal{O}\mathcal{W}}\) | \({\mathcal{R}\mathcal{W}}\) | 116.47:1 |