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Motor Torque Formula:
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Motor torque calculation determines the rotational force required from a motor to drive a mechanical system. It's essential for selecting the appropriate motor for an application based on power and speed requirements.
The calculator uses the torque formula:
Where:
Explanation: The formula calculates the torque output required from a motor based on its power rating and operating speed.
Details: Proper torque calculation ensures that a motor can provide sufficient rotational force to overcome the load requirements of the application, preventing motor overload and ensuring efficient operation.
Tips: Enter power in kilowatts (kW) and speed in revolutions per minute (rpm). Both values must be positive numbers greater than zero.
Q1: Why is 9550 used in the formula?
A: The constant 9550 comes from unit conversion factors (60 seconds/minute divided by 2π radians, multiplied by 1000 for kW to W conversion).
Q2: What is a typical torque range for industrial motors?
A: Torque values vary widely based on motor size and application, ranging from less than 1 Nm for small motors to thousands of Nm for large industrial motors.
Q3: How does torque relate to motor performance?
A: Torque determines a motor's ability to overcome resistance and accelerate loads. Higher torque allows a motor to handle heavier loads or accelerate faster.
Q4: Can this formula be used for all motor types?
A: This formula provides theoretical torque calculation for various motor types, but actual performance may vary based on motor efficiency, design, and operating conditions.
Q5: How important is starting torque versus running torque?
A: Starting torque is typically higher than running torque as it must overcome static friction and inertia. Both should be considered when selecting a motor.