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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 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 ...
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]
The global worm reduction gearbox market is analyzed to reach US$ 4.13 billion by 2034. Global sales of worm reduction gearboxes are projected to rise at 5.8% CAGR from 2024 to 2034. The double-reduction gearbox segment is forecasted to reach a value of US$ 2.68 billion by 2034.
fig.1. A duplex worm or dual lead worm is a worm gear set where the two flanks are manufactured with slightly different modules and/or diameter quotients. As a result of this, different lead angles on both tooth profiles are obtained, so that the tooth thickness is continuously increasing all over the worm length, while the gap between two threads is decreasing.
The final drive used an underhung worm reduction gear slung below the differential leaving little ground clearance (described by road testers as "nearly six inches") but permitting a flat floor to the rear passenger compartment. Road testers commented that the new suspension provided good stability and "avoided tiresome pitch and toss".
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