The formula to calculate the Gear Ratio is:
\[ G = \frac{T}{Z_p} \]
Where:
The Gear Ratio is the ratio of output gear speed to the input gear speed or the ratio of the number of teeth on the gear to that on the pinion.
Let's assume the following values:
Using the formula:
\[ G = \frac{12}{8} \]
Evaluating:
\[ G = 1.5 \]
The Gear Ratio is 1.5.
| Number of Teeth on Wheel | Number of Teeth on Pinion | Gear Ratio |
|---|---|---|
| 10 | 8 | 1.250000000000 |
| 11 | 8 | 1.375000000000 |
| 12 | 8 | 1.500000000000 |
| 13 | 8 | 1.625000000000 |
| 14 | 8 | 1.750000000000 |
| 15 | 8 | 1.875000000000 |
| 16 | 8 | 2.000000000000 |
| 17 | 8 | 2.125000000000 |
| 18 | 8 | 2.250000000000 |
| 19 | 8 | 2.375000000000 |
| 20 | 8 | 2.500000000000 |
