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FACE-TYPE PIN-WHEEL WORM GEARING

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Worm 1 rotates about fixed axis A-A and its threads b mesh with cylindrical pins 3 of pin-wheel 2 which rotates about fixed axis B. Pins 3 are designed as rollers located on the end face of wheel 2 and can turn about their axes D, thereby substantially reducing friction losses in the gearing. The transmission ratio of the mechanism is i₁₂=ω₁/ω₂=z₂/z₁ where ω₁ and ω₂ are the angular velocities of worm 1 and wheel 2, z₁ is the number of threads, or starts, on worm 1 and z₂ is the number of pins on wheel 2.
$2810$WG,3L$

Linked items
Documents: Gear mechanisms  [Streambook]
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