Engineers Edge Electric Motor Accelerating Torque and Force Equation and Calculator - Engineers Edge
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Electric Motor Accelerating Torque and Force Equation and Calculator
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To determine a fan or blowers horsepower use the following equation. 

Equation:  

        
 Open Calculator

Where:

T = Required Torque, lb-ft
WK2 = Inertia of load to be accelerated
(See moment of inertia calculations)
= Change of speed, rpm
t = Time to accelerate the load, seconds

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