Rotor

Rotor usually refers to the rotating part of a machine such as a motor, generator, alternator, pump, or helicopter. The part of the machine that does not rotate is called a stator.

Uses

• The flying part of a helicopter is a rotor.
• In electrical engineering, the rotor of an electric motor or dynamo is an armature.
• In automotive mechanics, the disc in a disc brake. It can also be part of a distributor.
• Certain cipher machines, such as the German Enigma machine, made use of rotating wheels, see rotor machine in connection with these devices.
• In radio, a rotor is an electric motor designed to turn a receiving antenna to match the direction of the received signal.

Acronyms and code names

• The ROTOR [1] radar project, the UK's first national air defence system following the Second World War, incorporating some Chain Home radar stations.
• Shared Source Common Language Infrastructure|Rotor [2] is the code name for Microsoft's shared source implementation of the Common Language Infrastructure.

Entertainment

• SC Rotor Volgograd [3] is a Russian football club.
• Rotor is a fictional character from the Sonic the Hedgehog universe Rotor (Sonic the Hedgehog).
• THE ROTOR is the trade name for an amusment ride.