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  • Direct drive mechanism


    A direct drive mechanism is one that takes the power coming from a motor without any reductions (such as a gearbox).

  • Belt (mechanical)


    A pair of v-belts flat belt Hagley Museum A belt is a loop of flexible material used to link two or more rotating shafts mechanically, most often parallel. Belts may be used as a source of motion, to transmit power efficiently or to track relative movement. Belts are looped over pulleys and may have a twist between the pulleys, and the shafts need not be parallel. In a two pulley system, the belt can either drive the pulleys normally in one direction (the same if on parallel shafts), or the belt may be crossed, so that the direction of the driven shaft is reversed (the opposite direction to the driver if on parallel shafts). As a source of motion, a conveyor belt is one application where the belt is adapted to carry a load continuously between two points.

  • Wig wag (washing machines)


    Wig wag solenoid in a washing machine The wig-wag is the common name for the unusual solenoid mechanism used in belt-drive washing machines made by Whirlpool, Kenmore (manufactured by Whirlpool) and many others, from approximately 1950 to 1987 in the United States. It was used in belt-drive Brastemp and Consul models built in Brazil from 1959 to 1990. They were common in US-style top-loading vertical-axis machines, unheard of in European horizontal-axis machines. European machines rotate the same drum to both agitate the clothes during washing and to spin them dry. A multi-speed motor is used instead of clutches.

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