The coupling of two working parts, for example two shaft, in such a way as to permit connection or disconnection at will without the necessity of bringing both parts to rest, and when connected to transmit the required amount of power without sign is known as Clutch and or, the friction or hydraulic actuated mechanism used for coupling two shafts or similar parts, one or which drives and the other of when is driven by the Clutch. Clutch plate assembly has three principal components i.e. Flywheel, Clutch plate and Pressure Plate. The device used is the Clutch which transmits the rotary motion of the engine to the transmission, which required by the driver and located between the engine and the gear box and which it connects and disconnects the two units smoothly without shock. As per the theory of the Clutch, first assumption is used in case of problems involving power absorption by friction. Second assumption is used in case of problems involving power transmission by friction between the surfaces.

DR. PORAG KALITA, Ph.D. (Auto. Engg.) ."Experimental Study on Automobile Clutch Plate Juddering". International Journal of Computer Engineering In Research Trends (IJCERT) ,ISSN:2349-7084 ,Vol.2, Issue 11,pp.705-710, November- 2015, URL :https://ijcert.org/ems/ijcert_papers/V2I1102.pdf,

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