I'm not sure where to post this one but i'll start with the mechanical guys first. There are two different motors that share identical ratings but different sizes physically. They are represented as though they perform the same work, share a common HP and KW rating and the mechanical device they each drive are twins in every way, however one electric motor is much larger than the other (in terms of stator and rotor). The mechanical interface is smaller for one than the other (they are both flange-mount). My question is this, how can they both be the same horsepower and kw rating? I thought the smaller of the two, given the work is the same, would have to be of a lower hp than the bigger brother. Am I incorrect?