**Power and Torque: Understanding the Relationship Between**
http://www.epi-eng.com/mechanical_engineering_basics/power_and_torque.htm

Mar 11, 2011 · POWER is CALCULATED from torque and RPM, by the following equation: HP = Torque x RPM ÷ 5252 (At the bottom of this page, the derivation of that equation is shown, for anyone interested.) Engines (and motors) produce POWER by providing a ROTATING SHAFT which can exert a given amount of TORQUE on a load at a given RPM. The amount of TORQUE the engine can exert …

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