Power flow describes the path mechanical forces take within a technical system, particularly from the drive to the point of action — where the force is ultimately used. Typically, the force flow runs through several machine elements, such as motors, couplings Couplings Couplings are used to connect two shafts for the transmission of torque, and to compensate for misalignment or movement. , gearboxes, shafts, and bearings, before reaching the output. In gearboxes or drive trains, the power flow can branch, change direction, or redirect via gear pairs, reversing gears, or planetary stages. Analyzing the power flow is essential for designing, sizing, and assessing the efficiency of technical systems.
