Motors: Speed, Torque & Horsepower

The three factors that determine the  type of work a motor can produce our  speed torque and horsepower speed is  defined as how fast the motor performs  its work for example a shaft can rotate  slowly or quickly the typical units of  measurement for rotational motor speed  are revolutions per minute or rpm  work is defined as a force applied over  a distance in the case of flywheels  winches and motors the work is called  torque .

Torque is a special type of work  that produces rotation  Tork occurs when a force acts on a  radius typical units of measurement for  torque are pound foot  the tork Illustrated here is equal to   pound foot horsepower is defined as the rate at  which work is accomplished years ago  before motors were invented most work  was accomplished manually 

It was estimated that one horse could  accomplish approximately thirty three  thousand pound foot of work per minute  and thus the term horsepower was born  in modern terms horsepower is simply  another unit of measurement for power and can be translated into watts BTUs  joules or any unit of power units that  measure motor power are typically in  horsepower or watts  you can manipulate the connection among  speed torque and horsepower by  understanding how they are related..

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