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Home > Mechanism > Different Types of Gears [Spur gear,Helical gear,Bevel gear,Worm gear,Rack and Pinion]

Different Types of Gears [Spur gear,Helical gear,Bevel gear,Worm gear,Rack and Pinion]

Types of Gears

A gear is a toothed wheel having a special tooth shape or profile enabling it to mesh smoothly with other gears.These are used to transmit power from one shaft to another shaft in closed contact. These gears are classified according to location of the shaft, position of the tooth and types of tooth shapes. The follow gears are mainly used

  1.  Straight Gear [spur gear]
  2. Helical gear
  3. Bevel gear
  4. Worm gear
  5. Rack and Pinion

Straight gear:-

These are also called as spur gears the gears having tooth in straight & parallel to the axis of the shaft. These gears are used to transmit the power in gearbox of automobiles. This type of gears are used to transmit more power.

spur gear

Helical gear:-

In these helical gears the gears having the tooth with some angles with respect to the axis of shaft. This angle doesn’t meet more than 30-50°. If the angle is increased the gear can’t transmit the power effectively and it effects the life of the gear.

helical gears

Bevel gear:-

Bevel gears are used to transmit the power from one direction to another direction. For example the power developed by one shaft is in X-axis & the power need to be transmit to 90° i.e., to Y-axis. Then these gears are used. In these the gears having some slant & angled position.

bevel gears

Worm gear:-

In these the position of shaft are non parallel to each other. In this type of gears a worm & a wheel worm having a circular spiral gear like a spring in spiral binding. The wheel may have the tooth angles or straight form. Then the power input is given to worm then the output may obtained at wheel according to our requirement

worm gears

Rack and Pinion :-

In this type of gear having a infinitely large diameter the tooth are laid flat.Torque can be converted to linear force by meshing a rack with a pinion: the pinion turns; the rack moves in a straight line.

rack and pinion
Even a gear can be manufactured by using a gear in machine

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  1. thanks….sir
    for the providing simple way above articals

  2. Brylan Achilles

    thanks for the basics man. really helpful

  3. vijay bandhu singh bais

    thanks sir so luck I improve that so like purpose that any complete that manufraction that the compouter added design in my life okk

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