1. What is Gear Ratio?

The 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 speed relationship between two meshing gears.

2. How Does the Calculator Work?

The calculator uses the gear ratio formula:

Where:

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

Explanation: The ratio shows how many times the driver gear must rotate to make the driven gear complete one full rotation.

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 driver and driven gears. The calculator will compute the ratio which can be used to understand speed and torque relationships.

5. Frequently Asked Questions (FAQ)

Q1: What does a gear ratio greater than 1 mean?
A: A ratio > 1 means the driver gear is larger than the driven gear, resulting in speed reduction and torque increase.

Q2: What does a gear ratio less than 1 mean?
A: A ratio < 1 means the driver gear is smaller than the driven gear, resulting in speed increase and torque reduction.

Q3: How does gear ratio affect speed?
A: Output speed = Input speed × (1/gear ratio). Higher ratios mean lower output speed but higher torque.

Q4: Can gear ratio be less than 0?
A: No, gear ratio is always positive. Negative ratios would indicate direction reversal, which isn't part of the ratio calculation.

Q5: How is gear ratio different from transmission ratio?
A: Gear ratio refers to a single gear pair, while transmission ratio refers to the overall ratio of a complete gear train.