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Torque Formula:
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Motor torque calculation determines the rotational force produced by an engine or motor based on its horsepower and rotational speed. Torque is a crucial parameter in mechanical engineering and automotive applications.
The calculator uses the torque formula:
Where:
Explanation: The constant 5252 comes from the relationship between horsepower, torque, and rotational speed, where 1 horsepower is defined as 550 foot-pounds per second.
Details: Accurate torque calculation is essential for proper motor selection, mechanical design, power transmission system design, and performance analysis in automotive and industrial applications.
Tips: Enter horsepower and RPM values. 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 (5252 = 33000/2π), where 33000 is the foot-pounds per minute in one horsepower.
Q2: What are typical torque values for different engines?
A: Torque values vary significantly by engine type. Small car engines might produce 100-200 lb-ft, while large diesel engines can produce over 1000 lb-ft of torque.
Q3: How does torque relate to vehicle performance?
A: Torque determines a vehicle's acceleration and pulling power. Higher torque at lower RPM generally provides better low-speed performance and towing capability.
Q4: Can this formula be used for electric motors?
A: Yes, the formula applies to all types of motors and engines, though electric motors typically have different torque characteristics than internal combustion engines.
Q5: What's the difference between torque and horsepower?
A: Torque is a measure of rotational force, while horsepower is a measure of work done over time. Horsepower = (Torque × RPM) / 5252.