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Torque Formula:
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The torque formula calculates motor torque from horsepower and RPM. Torque is a measure of rotational force, and this calculation is essential for understanding motor performance and selecting appropriate motors for various applications.
The calculator uses the torque formula:
Where:
Explanation: The constant 5252 is derived from the relationship between horsepower, torque, and RPM, where 1 horsepower is defined as 550 foot-pounds per second.
Details: Accurate torque calculation is crucial for motor selection, mechanical design, and ensuring proper performance in applications ranging from industrial machinery to automotive systems.
Tips: Enter horsepower in hp and RPM in rotations per minute. Both values must be positive numbers greater than zero for accurate calculation.
Q1: Why is the constant 5252 used in the formula?
A: The constant 5252 comes from the conversion between horsepower (550 ft-lb/sec) and RPM (1 revolution = 2π radians), where 5252 = (550 × 60) ÷ (2 × π).
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 several thousand lb-ft for large industrial motors.
Q3: How does torque relate to motor performance?
A: Torque determines a motor's ability to overcome resistance and perform work. Higher torque allows a motor to handle heavier loads or accelerate faster.
Q4: Can this formula be used for all types of motors?
A: This formula applies to any rotating machinery where horsepower and RPM are known, including electric motors, internal combustion engines, and hydraulic motors.
Q5: How does gear reduction affect torque?
A: Gear reduction increases output torque while decreasing output speed. The torque multiplication is proportional to the gear ratio.