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Motor Torque Formula:
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Motor torque is a measure of the rotational force produced by an engine or motor. It represents the engine's ability to perform work and is a critical parameter in mechanical engineering and automotive applications.
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 2π radians in a revolution.
Details: Torque calculation is essential for designing mechanical systems, selecting appropriate motors for applications, understanding vehicle performance characteristics, and ensuring proper power transmission in various mechanical systems.
Tips: Enter horsepower and RPM values. Both values must be positive numbers. The calculator will compute the torque in pound-feet (lb-ft).
Q1: Why is 5252 used in the torque formula?
A: The number 5252 is derived from the relationship between horsepower, torque, and RPM. It comes from the conversion of units where 1 horsepower equals 550 foot-pounds per second and there are 2π radians in a revolution.
Q2: What's the difference between horsepower and torque?
A: Torque is a measure of rotational force, while horsepower is a measure of power (work done over time). Horsepower equals torque multiplied by RPM divided by 5252.
Q3: Can I use this calculator for electric motors?
A: Yes, this formula works for any rotational power system including electric motors, internal combustion engines, and other mechanical systems.
Q4: What are typical torque values for different engines?
A: Torque values vary widely depending on the engine type and size. Small car engines might produce 100-200 lb-ft, while large diesel engines can produce over 1000 lb-ft of torque.
Q5: How does torque relate to vehicle acceleration?
A: Torque is directly related to a vehicle's ability to accelerate. Higher torque at lower RPMs generally results in better acceleration from a standstill.