1. What is the Gear Reduction Formula?

The gear reduction formula calculates the output RPM (revolutions per minute) based on the input RPM and the gear ratio. It's fundamental in mechanical engineering for designing gear systems.

2. How Does the Calculator Work?

The calculator uses the gear reduction formula:

Where:

• RPM In — Input revolutions per minute
• Ratio — Gear ratio (number of teeth on driven gear divided by number of teeth on driving gear)

Explanation: The output RPM decreases proportionally with the gear ratio. Higher ratios result in lower output RPM but increased torque.

3. Importance of RPM Calculation

Details: Accurate RPM calculation is crucial for designing mechanical systems, determining speed reduction, and ensuring proper torque transmission in gear systems.

4. Using the Calculator

Tips: Enter input RPM and gear ratio. Both values must be positive numbers. The ratio is typically greater than 1 for reduction systems.

5. Frequently Asked Questions (FAQ)

Q1: What is a typical gear ratio range?
A: Common ratios range from 1:1 to 100:1 or more, depending on application. Automotive transmissions often use 3:1 to 5:1 for first gear.

Q2: How does this relate to torque?
A: While RPM decreases by the ratio, torque increases by approximately the same factor (minus efficiency losses).

Q3: Can I use this for belt or chain drives?
A: Yes, the same principle applies to any system where the speed ratio is determined by the ratio of diameters or teeth counts.

Q4: What if my ratio is less than 1?
A: Ratios < 1 indicate speed increase (output RPM > input RPM) with corresponding torque reduction.

Q5: How accurate is this calculation?
A: The calculation is theoretically exact, but real-world factors like efficiency losses and slippage may affect actual output.