and mechanical equipment, such as: AC & DC electric motors, squirrel cage rotors, generators, pumps, fans, reducers, rolls, impellors, transmissions, and variable speed drives. We... drives. Darby Electric Company is an active member of the Electrical Apparatus Service Association (EASA), which is the international trade group for firms that repair or rebuild electric motors. 2004 Darby Electric Co., Inc. All rights reserved. ...