RPM/Torque & Horsepower RPM= (Revolution per minute)The speed of a motor is defined as the rate at which the motor rotate. Torque= is a Rotating force produce by a motor's crankshaft. it is commonly quantified by the units NM or pound-feet. Power=is how rapidly work is accomplished- work in a given amount of time power is quantified in watts,(J/s) or Horsepower. | Piping Fabrication World