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A worm drive is a gear arrangement in which a worm (which is a gear in the form of a screw) meshes with a worm wheel (which is similar in appearance to a spur gear). Its main purpose is to translate the motion of two perpendicular axes or to translate circular motion to linear motion (example: band type hose clamp ).The two elements are also ...
In 1913, they established a joint venture in America with Timken for Radicon worm drive units. By the end of World War I the workforce had increased from 200 to 1,000 as they started building propulsion units for warships, and drive mechanisms for armaments. By 1921 the company was the largest worm gear manufacturer in the world. [2]
A rack and pinion has roughly the same purpose as a worm gear with a rack replacing the gear, in that both convert torque to linear force. However the rack and pinion generally provides higher linear speed — since a full turn of the pinion displaces the rack by an amount equal to the pinion's pitch circle whereas a full rotation of the worm screw only displaces the rack by one tooth width.
Boston Gear (1877) Svendborg Brakes (1884) Nuttall Gear Corp. (1897) Bibby Transmissions (1919) Kilian Manufacturing (1922) Delroyd Worm Gear (1922) Warner Electric (1927) Stromag (1932) Bauer Gear Motor (1927, de) Ameridrives (1928) Industrial Clutch Corp. (1930) Marland Clutch (1931) Matrix International (1939) Stieber Clutch (1944) Twiflex ...
In 1976, the company established its Gear Division, specialising in power transmission equipment and industrial gears. It designs and manufactures Bucket-wheel excavator, worm drives, helical gears, planetary gears, couplings, Custom built gearboxes, loose gears and spiral bevel gears up to 1000 mm diameter. Its products target industries such ...
The slewing drive is a modernized take on the worm drive mechanism, which dates back many centuries and was widely used during the Renaissance Era. Pappus of Alexandria (3rd century AD), a Greek mathematician, is credited with an early version of the endless screw, which would later evolve into the worm drive. [1]