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Gleason Plastic Gears: Specializing in Precision Plastic Gearing, acquired in 2011, located in Bergen, NY. [6] Gleason-Pfauter Maschinenfabrik GmbH: Originally 'Pfauter', based in Ludwigsburg, Germany, acquired by Gleason Corporation in 1997. [7] Gleason-Hurth Maschinen und Werkzeuge GmbH: Located at Munich, Germany.
Plastic gears may even be intentionally designed to be the weakest part in a mechanism, so that in case of jamming they will fail first and thus avoid damage to more expensive parts. Such sacrificial gears may be a simpler alternative to other overload-protection devices such as clutches and torque- or current-limited motors.
During the 1920s, Farrel-Birmingham began creating gears for use in US Navy propulsion systems in Buffalo, New York. [2] In 1941, the Navy contracted with Farrel-Birmingham and General Motors to begin manufacturing a rapid reversal gear system that would allow vessels to reverse engines without first slowing down.
Composite gear housings require more expensive and reliable cooling systems. However, composite plastic material is widely used on low-power applications such as gear motors for electromechanical actuators. Lightly loaded rotary gear actuators can be completely made of composite plastic material.
Although gear cutting is a substantial industry, many metal and plastic gears are made without cutting, by processes such as die casting or injection molding. Some metal gears made with powder metallurgy require subsequent machining, whereas others are complete after sintering.
Capsela is a construction toy brand consisting primarily of gears and motors in spherical plastic capsules that can be connected to form various static or dynamic toys suitable for land or water. [1] The capsules typically have six hollow octagonal connectors protruding, where an octagonal sleeve piece bridges between two capsules.
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