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Motor Torque Formula:
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Motor torque is the rotational force produced by a motor. It's a crucial parameter in mechanical engineering that determines a motor's ability to perform work and overcome resistance.
The calculator uses the torque formula:
Where:
Explanation: The formula calculates the torque output of a motor based on its power and rotational speed, with the constant 9550 converting between different units of measurement.
Details: Accurate torque calculation is essential for selecting appropriate motors for applications, designing mechanical systems, ensuring proper performance, and preventing equipment failure.
Tips: Enter power in kilowatts (kW) and rotational speed in revolutions per minute (rpm). Both values must be positive numbers greater than zero.
Q1: Why is the constant 9550 used in the formula?
A: The constant 9550 comes from unit conversions: 60,000/(2π) ≈ 9550, which converts between watts, newton-meters, and revolutions per minute.
Q2: What are typical torque values for different motors?
A: Torque values vary significantly based on motor type and size. Small motors might produce less than 1 Nm, while large industrial motors can produce thousands of Nm.
Q3: How does torque relate to horsepower?
A: Horsepower and torque are related through rotational speed. Horsepower = (Torque × RPM) / 5252 (for imperial units) or (Torque × RPM) / 9550 (for metric units).
Q4: What factors affect motor torque?
A: Motor design, electrical characteristics, load conditions, temperature, and efficiency all affect the actual torque output of a motor.
Q5: When is maximum torque important?
A: Maximum torque is critical for applications requiring high starting forces or the ability to handle sudden load increases, such as in vehicles or heavy machinery.