Explain the term: (i) Slip (ii) Creep

Explain the term: (i) Slip (ii) Creep
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1 Answer

Answer :

Slip: The forward motion of the driver without carrying the belt with it or forward motion of the belt without carrying the driven pulley with it, is called slip of the belt. Slip reduces velocity ratio and also power transmission capacity of the belt drive. Less slip in the belt drive is desirable. 

OR When belt is transmitted power from driver to driven pulley, there is a loss of motion due to insufficient frictional grip and therefore the speed of driven pulley is less than driver pulley. This is known as Slip of the belt & generally expressed in % Slip of Belt by neglecting thickness of belt is expressed as below;

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Creep: When the belt passes from the slack side to the tight side, a certain portion of the belt extends and it contracts again when the belt passes from the tight side to slack side. Due to these changes of length, there is a relative motion between the belt and the pulley surfaces. This relative motion is termed as creep. Creep reduces velocity ratio and also power transmission capacity of the belt drive. Less creep in the belt drive is desirable.

Creep of Belt is expressed as below;

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