To calculate the RPM gear ratio:
\[ RGR = \frac{O}{I} \]
Where:
RPM Gear Ratio is the ratio between the output RPM and the input RPM of a gear system. It indicates how many times the output RPM is compared to the input RPM. This ratio helps in understanding how the rotational speed is altered between the input and output shafts in gear systems.
Example 1:
Assume the output RPM is 3000 and the input RPM is 1500. Using the formula:
\[ RGR = \frac{3000}{1500} = 2 \]
The RPM Gear Ratio is 2, meaning the output RPM is twice the input RPM.
Example 2:
Assume the output RPM is 5000 and the input RPM is 1000. Using the formula:
\[ RGR = \frac{5000}{1000} = 5 \]
The RPM Gear Ratio is 5, indicating the output RPM is five times the input RPM.