Gear research
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Gear Research. Matt Cifelli. Spur Gears. Used to increase or decrease the torque of a mechanical object Each straight tooth projects directly from the center of the gear and must fit perfectly into the shaft of the complementary gear in order to work efficiently

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Gear Research

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Gear research

Gear Research

Matt Cifelli


Spur gears

Spur Gears

  • Used to increase or decrease the torque of a mechanical object

  • Each straight tooth projects directly from the center of the gear and must fit perfectly into the shaft of the complementary gear in order to work efficiently

  • They create a lot of noise due to the teeth colliding

  • Generally used in blenders, clothes driers and construction equipment and airplane engines


Spur gears in use

Spur Gears In Use


Worm gears

Worm Gears

  • Worm gears have a curved teeth with shallow angles and the worm is a curved and twisted rod that moves the gear

  • Worm shafts can reduce the spinning of the gear greatly

  • The worm shaft is capable of easily moving the gear, but the gear is unable to move the shaft

  • Worm gears are generally used in windup toys, watches and music boxes, as well as cars and machine heads


Worm gears in use

Worm Gears In Use


Crown gears

Crown Gears

  • Crown gears have triangular teeth on one side

  • Each tooth is formed by two edges coming out at a 90 degree angle from the base of the gear, forming isosceles triangles

  • Crown gears are generally used in cars, rotating shaft cam switches and many more mechanical contraptions


Crown gears in use

Crown Gears In Use


Rotary and linear motion

Rotary and Linear Motion

  • Rotary motion is the circular movement of an object around a single, fixed axis

  • Linear motion is the movement of an object from one place to another in a straight line


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