1. What is Transmission Gear Ratio?

The transmission gear ratio is the relationship between the number of teeth on two meshing gears. It determines the speed and torque conversion between the drive gear and driven gear in a transmission system.

2. How Does the Calculator Work?

The calculator uses the gear ratio equation:

Where:

• Drive Teeth — Number of teeth on the drive gear
• Driven Teeth — Number of teeth on the driven gear

Explanation: The ratio shows how many turns the drive gear must make to turn the driven gear once. A higher ratio means more torque but less speed.

3. Importance of Gear Ratio Calculation

Details: Accurate gear ratio calculation is crucial for proper speedometer calibration, transmission performance, and vehicle speed/torque requirements.

4. Using the Calculator

Tips: Enter the number of teeth for both drive and driven gears. Both values must be positive integers greater than zero.

5. Frequently Asked Questions (FAQ)

Q1: What's a typical speedometer gear ratio?
A: Common ratios range from 0.75 to 1.25, but vary based on transmission type and vehicle application.

Q2: How does gear ratio affect speedometer accuracy?
A: The ratio directly impacts speedometer readings. Incorrect ratios will cause speedometer inaccuracies.

Q3: Can I use this for differential gear ratios?
A: Yes, the same calculation applies to differential gears, though the interpretation differs.

Q4: What if my ratio is less than 1?
A: A ratio < 1 indicates the driven gear turns faster than the drive gear (speed increase).

Q5: How precise should my tooth counts be?
A: Count teeth carefully - even one tooth difference can significantly affect the ratio.