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Torque Formula:
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The torque formula calculates rotational force from horsepower and RPM. It's a fundamental equation in mechanical engineering used to determine the twisting force produced by motors and engines.
The calculator uses the torque formula:
Where:
Explanation: The constant 5252 is derived from the relationship between horsepower, torque, and RPM. At 5252 RPM, horsepower and torque values are equal.
Details: Torque calculation is essential for motor selection, mechanical design, power transmission systems, and understanding the performance characteristics of engines and electric motors.
Tips: Enter horsepower (must be greater than 0) and rotational speed in RPM (must be greater than 0). The calculator will compute the torque in pound-feet (lb-ft).
Q1: Why is 5252 used in the formula?
A: 5252 is a constant derived from the relationship between rotational speed, torque, and power. It comes from the conversion between different units of measurement.
Q2: Can this formula be used for electric motors?
A: Yes, this formula works for any rotating machinery where you know the horsepower and RPM, including electric motors, internal combustion engines, and turbines.
Q3: What are typical torque values for motors?
A: Torque values vary significantly based on motor size and type. Small motors might produce just a few lb-ft, while large industrial motors can produce thousands of lb-ft.
Q4: How does torque relate to vehicle performance?
A: In vehicles, torque determines acceleration and pulling power, while horsepower relates to top speed. Higher torque at lower RPMs provides better low-end acceleration.
Q5: Can I use this for metric units?
A: This specific formula uses imperial units (HP and lb-ft). For metric units (kW and Nm), a different constant would be used in the calculation.