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GEARS

GEARS. Spur gears. gear having involuted teeth either straight or helically cut on a cylindrical surface. Two such gears are used to transmit power between parallel shafts. Worm gear. 1.A gear consisting of a spirally threaded shaft and a wheel with marginal teeth that mesh into it.

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GEARS

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  1. GEARS

  2. Spur gears • gear having involuted teeth either straight or helically cut on a cylindrical surface. Two such gears are used to transmit power between parallel shafts

  3. Worm gear • 1.A gear consisting of a spirally threaded shaft and a wheel with marginal teeth that mesh into it. • 2.The toothed wheel of this gear; a worm wheel.

  4. Crown gear • a gear whose teeth project parallel to the axis and whose pitch surface is a plane

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