1. What is Gear Ratio?

The gear ratio is the ratio of the number of teeth on the driven gear to the number of teeth on the driver gear. It determines the mechanical advantage and speed relationship between two meshing gears.

2. How Does the Calculator Work?

The calculator uses the gear ratio formula:

Where:

• \( driven \) — Number of teeth on the driven gear
• \( driver \) — Number of teeth on the driver gear

Explanation: The gear ratio shows how many turns the driver gear must complete to turn the driven gear once.

3. Importance of Gear Ratio

Details: Gear ratio is crucial in mechanical design for determining torque multiplication, speed reduction, and power transmission efficiency in gear systems.

4. Using the Calculator

Tips: Enter the number of teeth for both driven and driver gears. Both values must be positive integers (minimum 1 tooth).

5. Frequently Asked Questions (FAQ)

Q1: What does a gear ratio greater than 1 mean?
A: A ratio > 1 indicates speed reduction and torque multiplication (driven gear turns slower than driver gear).

Q2: What does a gear ratio less than 1 mean?
A: A ratio < 1 indicates speed increase and torque reduction (driven gear turns faster than driver gear).

Q3: How does gear ratio affect mechanical advantage?
A: Higher gear ratios provide greater mechanical advantage (more torque but less speed).

Q4: Can gear ratio be expressed as a decimal?
A: Yes, gear ratios are often expressed as decimals (e.g., 2.5:1) for precise calculations.

Q5: How does gear ratio relate to actual gear diameters?
A: For spur gears, the ratio of diameters is equal to the ratio of teeth counts.