Enter the number of teeth on the driver and driven gears into the calculator to determine your gear ratio.

Gear Ratio Calculation Formula

The following formula is used to calculate the gear ratio.

Gear Ratio = Number of Teeth on Driver Gear / Number of Teeth on Driven Gear

Variables:

  • Gear Ratio is the ratio between the driver and driven gears
  • Number of Teeth on Driver Gear is the count of teeth on the driver gear
  • Number of Teeth on Driven Gear is the count of teeth on the driven gear

To calculate the gear ratio, divide the number of teeth on the driver gear by the number of teeth on the driven gear.

What is Gear Ratio Calculation?

Gear ratio calculation is a critical aspect of mechanical engineering that involves determining the relationship between the driver gear and the driven gear. This calculation helps in understanding the efficiency and performance of the gear system, allowing for precise control over speed and torque in various mechanical applications.

How to Calculate Gear Ratio?

The following steps outline how to calculate the gear ratio using the given formula.

  1. First, determine the number of teeth on the driver gear.
  2. Next, determine the number of teeth on the driven gear.
  3. Use the formula from above: Gear Ratio = Number of Teeth on Driver Gear / Number of Teeth on Driven Gear.
  4. Finally, calculate the gear ratio by plugging in the values.
  5. After inserting the variables and calculating the result, check your answer with the calculator above.

Example Problem:

Use the following variables as an example problem to test your knowledge.

Number of Teeth on Driver Gear = 20

Number of Teeth on Driven Gear = 40

FAQ

1. What is a gear ratio?

A gear ratio is the ratio of the number of teeth on the driver gear to the number of teeth on the driven gear. It determines the mechanical advantage and efficiency of the gear system.

2. How does gear ratio affect speed and torque?

A higher gear ratio means higher torque and lower speed, while a lower gear ratio means higher speed and lower torque.

3. How often should I use the gear ratio calculator?

It’s helpful to use the gear ratio calculator whenever designing or modifying a gear system to ensure optimal performance.

4. Can this calculator be used for different types of gears?

Yes, this calculator can be used for various types of gears as long as you know the number of teeth or the diameters.

5. Is the calculator accurate?

The calculator provides an estimate of your gear ratio based on the inputs provided. For exact figures, it’s best to consult detailed mechanical design documents or tools.