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Torque Formula:
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The torque calculation formula T = (P × 9550) / N calculates mechanical torque using power and rotational speed. This formula is widely used in mechanical engineering and automotive applications to determine the twisting force produced by rotating machinery.
The calculator uses the torque formula:
Where:
Explanation: The constant 9550 is derived from unit conversions that transform power in kilowatts and rotational speed in revolutions per minute into torque in Newton-meters.
Details: Accurate torque calculation is essential for designing mechanical systems, selecting appropriate motors and engines, and ensuring proper performance and safety in various applications from automotive to industrial machinery.
Tips: Enter power in kilowatts (kW) and rotational speed in revolutions per minute (rpm). Both values must be positive numbers greater than zero for accurate calculation.
Q1: Why is the constant 9550 used in the formula?
A: The constant 9550 comes from unit conversion factors that transform power (kW) and rotational speed (rpm) into torque (Nm), accounting for the relationship between these units.
Q2: Can this formula be used for different power units?
A: This specific formula is designed for power in kilowatts. For other power units (like horsepower), different conversion factors would be needed.
Q3: What are typical torque values for different applications?
A: Torque values vary widely depending on the application - from small electric motors producing a few Nm to large industrial engines producing thousands of Nm.
Q4: How does torque relate to mechanical power?
A: Torque and rotational speed together determine mechanical power output. Power is essentially torque multiplied by angular velocity (with appropriate unit conversions).
Q5: Are there limitations to this calculation?
A: This calculation provides theoretical torque values and assumes 100% efficiency. Actual torque may vary due to mechanical losses, efficiency factors, and other real-world conditions.