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The pressure plate of the clutch can rotate.
The function of the pressure plate and the driven plate of the automobile clutch is to transmit the power of the engine to the gearbox, that is, to transmit the power when they are combined. Friction disc is also called clutch disc, because in the clutch, through friction clutch and combination or clutch, is an important part of the clutch.
Clutch has three important functions: transmission power, power cut off and overload prevention.
The clutch's pressure plate is mounted on the engine's flywheel and rotates with the engine; the driven disc (i.e. the friction disc) is combined with the spline of the transmission input shaft through the spline groove, and when the friction disc rotates, the transmission input shaft rotates accordingly; when the pressure disc is pressed on the driven disc by the spring, the transmission power is transmitted; When the pressure disc is under the clutch pedal, the pressure disc returns to position, and the driven disc has no force, that is, the separation state; if the clutch is pressed lightly, the spring of the pressure disc does not have all the effect, which is a semi-clutch, also known as semi-linkage.