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Torque Calculation Formula:
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Torque calculation from RPM and power is a fundamental mechanical engineering calculation that determines the rotational force produced by a motor or engine. It's essential for understanding the performance characteristics of rotating machinery.
The calculator uses the torque formula:
Where:
Explanation: The formula converts power and rotational speed into torque, accounting for the relationship between rotational work and force.
Details: Accurate torque calculation is crucial for mechanical design, motor selection, performance analysis, and ensuring proper operation of rotating equipment in various applications.
Tips: Enter power in watts and RPM in revolutions per minute. Both values must be positive numbers greater than zero for accurate calculation.
Q1: Why is the 60 in the numerator?
A: The factor of 60 converts power from watts (joules/second) to work per minute, matching the RPM unit which is revolutions per minute.
Q2: What are typical torque values for different motors?
A: Torque values vary widely depending on motor size and type. Small electric motors might produce 0.1-10 Nm, while large industrial motors can produce thousands of Nm.
Q3: Can this formula be used for any rotating system?
A: Yes, this formula applies to any rotating mechanical system where power and rotational speed are known, including engines, motors, turbines, and pumps.
Q4: How does torque relate to mechanical power?
A: Torque and rotational speed together determine mechanical power output. Higher torque at the same RPM means more power, and vice versa.
Q5: What units should I use for accurate results?
A: For this calculator, use watts for power and revolutions per minute for RPM. The result will be in newton-meters (Nm) for torque.