A manual gearbox is often named as the manual transmission. Clutch is a type of mechanical device which helps in engagement and disengagement of the gears. It transmits power from the driving shaft to the driven shaft.  It basically works due to friction between the clutch plate and the flywheel.

What is the Purpose of Clutch?
 In manual transmission car, a clutch pedal is pressed first before changing the gears. But in the manual transmission car making the gear changes is not an easy work. To get the smooth gear flow, the engine power to the transmission has to be discontinued. In the practical life, it is not possible to turn the engine off every time only for changing the gears. So, here comes the use of clutch. A clutch is a component which helps in stopping the power supply of the engine to the transmission without turning the engine off.During the manual transmission, every driver has to maneuver the gear lever in order to shift the gear. Here, the car clutch allows engaging and disengaging the gears.

car clutch

Clutch Assembly

The clutch consists of many small parts but there are major four parts. They are:

Flywheel
The flywheel is directly linked with the engine crankshafts it tends to spin with the engine’s motion.

The clutch pressure plate
The pressure plate is tightly bolted with the clutch flywheel. Its major function is to grip the clutch assembly together and helps to release tension which allows the assembly to free rotation.

Also Read: How does a power steering works

Disc
The clutch disc resides between the flywheel and the pressure plate. It consists of a frictional surface similar to the brake pads. They are on both of its sides and efficiently make or break the contact with the flywheel and pressure plate. It allows smoother engagement and disengagement.

Clutch bearing and release system
They work concurrently and allow proper engaging and disengaging process. Featuring the release system, the clutch bearing pushes or pulls the pressure plate diaphragm spring. This allows engaging and disengaging the pressure plate’s grip on the disc when one presses or releases the clutch pedal.

How does a car clutch with a manual gearbox works?