The formula to calculate the Gear Mesh Frequency (GMF) is:
\[ GMF = R \times N \]
Where:
Let's say the gear rotation rate (R) is 1500 RPM and the number of teeth on the gear (N) is 20. Using the formula:
\[ GMF = 1500 \times 20 = 30000 \]
So, the Gear Mesh Frequency (GMF) is 30000 CPM.