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In a gear train where the axes of gears have motion are called:

In a gear train where the axes of gears have motion are called: Correct Answer Epicyclic gear train

Explanation:

Gear Train:

Sometimes, two or more gears are made to mesh with each other to transmit power from one shaft to another. Such a combination is called a gear train.

They can be of many types:

  • Simple Gear Train
  • Compound Gear Train
  • Reverted Gear Train
  • Epicyclic Gear Train

Epicyclic gear train:

  • When the gear train is having a relative motion of axes it is called the epicyclic gear train.
  • The axis of at least one of the gears also moves relative to the frame.

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Simple Gear Train:

  • When every gear axes are fixed relative to the fixed frame and, there is only one gear on each shaft.
  • The number of shafts may be any.

 

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Compound Gear Train:

  • When any shaft has more than one gear (first shaft or second shaft or intermediate shaft) i.e. two gear have the same angular velocity, the gear drive is called a compound gear train. 

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Reverted Gear train:

  • When the axes of the first gear (i.e. first driver) and the last gear (i.e. last driven or follower) are co-axial, then the gear train is known as a reverted gear train.
  • The motion of the first gear and the last gear is like.
  • The reverted gear trains are used in automotive transmissions, lathe back gears, industrial speed reducers, and clocks.

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