The multi plate clutch is an extension of single plate type where the number of frictional and the metal plates is increased. The increase in the number of friction surfaces obviously increases capacity of the clutch to transmit torque, the size remaining fixed.
Alternatively, the overall diameter of the clutch is reduced for the same torque transmission as a single plate clutch. This type of clutch is, therefore, used in some heavy transport vehicles and ing cars where high torque is to be transmitted. Besides, this finds application in case of scooters and motor cycles, where space available is limited. A simplified diagram of multi plate clutch is given below. The construction is similar to that of single plate type except that all the friction plates in this case are in two sets, i.e., one set of plate’s slides in grooves on the flywheel and the other one slide on splines on the Pressure plate hub. Alternative plates belong to each set.
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