FPM Formula:
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RPM to FPM conversion calculates the linear velocity in feet per minute based on rotational speed (RPM) and diameter. This is commonly used in mechanical engineering, manufacturing, and various industrial applications to determine surface speed.
The calculator uses the FPM formula:
Where:
Explanation: The formula converts rotational speed to linear speed by multiplying RPM by the circumference in feet (π × diameter/12).
Details: FPM calculation is essential for determining proper operating speeds in machining, conveyor systems, and various mechanical applications to ensure optimal performance and safety.
Tips: Enter RPM value and diameter in inches. Both values must be positive numbers for accurate calculation.
Q1: Why is the conversion factor 0.262?
A: The factor 0.262 comes from π/12, which converts diameter in inches to circumference in feet.
Q2: What are typical FPM values in industrial applications?
A: Typical values range from 100-10,000 FPM depending on the application, with machining operations typically between 100-2,000 FPM.
Q3: Can this formula be used for metric units?
A: No, this formula is specifically for imperial units. For metric units, use different conversion factors.
Q4: How does diameter affect FPM?
A: FPM increases linearly with diameter. Larger diameters result in higher linear speeds at the same RPM.
Q5: Is this calculation applicable to all rotating objects?
A: Yes, the formula applies to any rotating circular object where you need to calculate the linear speed at the periphery.