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Crankshaft Function and Material
This section examines the crankshaft. The crankshaft is attached to the connecting rod in offset areas called frost where they are done with pulp hoses change into rotating motion.
Crankshaft must be strong enough to do this without bending or twisting. They are a one piece casting or forging of heat-treated alloy steel of great mechanical strengths. Counter whites are formed to balance the throws and also the big end of the connecting rod.
Fine balancing is done by drilling out or adding small whites. The crankshaft rotating the engine on channels, which ran in bearings, called the mind bearings. The connecting rod with its big end bearings is attached to the crankshaft crankpins located on the throws.
Drilled passages carried lubricants under pressure from the mind bearings to the adjacent big ends bearings. The rear of the crankshaft is drilled and topped for flywheel attachment. Near the front of the crankshaft, a timing gear or sprocket is attached to drive the crankshafts.
A drive pulley is mounted on the front of the crankshaft. It drives many components including the optimizer, the fan, and water pump and power steering. Many in line in V engines has a harmonic balancer attached to the crankshaft. The harmonic balancer is more correctly called the crankshaft torsional vibration bumper. It prevents crankshaft vibration. In most cases, the harmonic balancer incorporates the drive pulley.
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