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Muff coupling


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What is a muff coupling ?

A muff coupling / Sleeve Coupling is the simplest type of rigid coupling, consisting of a hollow cylinder with the same inner diameter as the shaft.It is fitted over the ends of the two shafts by the means of a gib head key. Power is transmitted from one shaft to the other shaft by means of a key and a sleeve or muff.


A muff coupling is also known as a sleeve or box coupling. It is a type of rigid coupling which consists of a sleeve and a key used to connect the input and output shafts.

The sleeve or muff coupling is designed as a....

Mcqs questions come in the exam with options

A.thick cylinder

B.dun cylinder

C.Hollow shaft

D.Solid shaft

Answer wil be hollow shaft .

The sleeve or muff coupling is designed as a hollow shaft.

Function of muff coupling

It is used to connect two shafts which are perfectly in axial alignment for transmitting power.

PartsĀ 

1.Key

2.Shaft

3.Muff

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