1. What is Pulley Ratio Calculation?

The pulley ratio calculation determines the speed relationship between driver and driven pulleys in a V-belt drive system. It represents how many times the driven pulley rotates for each rotation of the driver pulley.

2. How Does the Calculator Work?

The calculator uses the pulley ratio formula:

Where:

• \( D1 \) — Driver pulley diameter (meters)
• \( D2 \) — Driven pulley diameter (meters)

Explanation: The ratio indicates the speed multiplication or reduction between the two pulleys in the V-belt drive system.

3. Importance of Pulley Ratio

Details: Accurate pulley ratio calculation is crucial for designing mechanical systems, determining speed relationships, and ensuring proper power transmission in V-belt drives.

4. Using the Calculator

Tips: Enter both pulley diameters in meters. All values must be valid positive numbers greater than zero.

5. Frequently Asked Questions (FAQ)

Q1: What does the pulley ratio indicate?
A: The pulley ratio indicates how many times the driven pulley rotates for each rotation of the driver pulley in a V-belt drive system.

Q2: How does pulley ratio affect speed?
A: A ratio greater than 1 indicates speed reduction, while a ratio less than 1 indicates speed increase at the driven pulley.

Q3: Can this calculator be used for other belt types?
A: While specifically designed for V-belt drives, the same principle applies to other belt drive systems with proper adjustments.

Q4: What are typical pulley ratio ranges?
A: Typical ratios range from 1:1 to about 7:1, though specific applications may vary based on system requirements.

Q5: How does pulley ratio affect torque?
A: The torque relationship is inversely proportional to the speed ratio - higher speed reduction results in higher torque multiplication.