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Motor Torque Formula:
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Motor torque calculation determines the rotational force produced by an electric motor based on its power output and rotational speed. This is essential for proper motor selection and application in various mechanical systems.
The calculator uses the torque formula:
Where:
Explanation: The formula calculates the torque output based on the power delivered and the rotational speed of the motor.
Details: Accurate torque calculation is crucial for selecting appropriate motors for specific applications, ensuring proper performance, and preventing mechanical failures in driven equipment.
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 seconds/minute × 1000 watts/kilowatt ÷ 2π radians/revolution).
Q2: What are typical torque values for electric motors?
A: Torque values vary significantly based on motor size and type, ranging from fractional Nm for small motors to thousands of Nm for large industrial motors.
Q3: How does torque relate to motor performance?
A: Torque determines the motor's ability to overcome load resistance and accelerate rotating masses. Higher torque allows for heavier loads and faster acceleration.
Q4: Are there different torque measurements?
A: Yes, motors have starting torque, breakdown torque, and full-load torque. This calculator provides the full-load torque based on rated power and speed.
Q5: Can this formula be used for all motor types?
A: This formula applies to various AC and DC motors when operating at their rated power and speed, though specific motor characteristics may affect actual performance.