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Torque Formula:
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The torque formula calculates the rotational force produced by an electric motor based on its horsepower and rotational speed. It's a fundamental equation in mechanical engineering and motor design.
The calculator uses the torque formula:
Where:
Explanation: The constant 5252 comes from the fact that one horsepower is defined as 550 foot-pounds per second, and there are 60 seconds in a minute and 2π radians in one revolution.
Details: Accurate torque calculation is crucial for motor selection, mechanical design, power transmission system design, and ensuring proper motor performance for specific applications.
Tips: Enter horsepower (HP) and RPM values. Both values must be positive numbers greater than zero for accurate calculation.
Q1: Why is 5252 used in the formula?
A: 5252 is a conversion constant derived from the relationship between horsepower (550 ft-lb/sec), minutes (60 seconds), and full rotations (2π radians).
Q2: What are typical torque values for electric motors?
A: Torque values vary widely based on motor size and type, ranging from less than 1 lb-ft for small motors to thousands of lb-ft for large industrial motors.
Q3: How does torque relate to motor performance?
A: Torque determines a motor's ability to perform work. Higher torque means the motor can overcome greater resistance or move heavier loads.
Q4: Can this formula be used for all types of motors?
A: This formula works for any rotating machinery where horsepower and RPM are known, but specific motor types may have additional factors affecting torque output.
Q5: How is torque measured in practice?
A: Torque can be measured directly using torque sensors or dynamometers, or calculated indirectly using electrical measurements and motor efficiency data.