The pilot bearing or bushing is pressed into the end of the crankshaft to support the end of the transmission input shaft. A pilot bearing or bush bearing supports the spigot end of the clutch shaft which is also housed in the flywheel. Even if the flywheel were aluminum, the face is iron because it wears well and dissipates heat better. The face of the flywheel that touches the clutch disc is made of iron. The face of the flywheel is precision machined to a smooth surface. The clutch disc is clamped and held against the flywheel by the spring action of the pressure plate. The friction or pressure plate bolts to the flywheel face. The flywheel rotates as the engine crankshaft rotates. The flywheel is the mounting surface for the clutch. The clutch housing and the cover provided with openings dissipate the heat generated by the friction during the clutch operation. Thus the entire assembly of the flywheel and the cover rotate all the time. The flywheel is bolted to a cover that carries a pressure plate or driving disc, pressure springs, and release levers. It is consists of a flywheel mounted on the engine crankshaft. ![]() ![]() In general, a Clutch consists of three members, and those are:
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