Product Detail
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CRANKSHAFT PULLEYS
Cod. Active 152
Applications5.133
Vehicles1.937
Cod. Active 152
Applicaz.5.133
Vehicles1.937
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The crankshaft pulley , also known as the damper , plays a fundamental role in the correct functioning of the engine, as it transmits motion to essential components such as the alternator, the air conditioning compressor, and other systems. Over the years, this component has undergone significant design evolution, becoming progressively more complex. In addition to its motion transmission function, the crankshaft pulley now also integrates a system for damping vibrations generated by the shaft itself, helping to improve the reliability and operating comfort of the engine. From a construction standpoint, the pulley appears as a wheel equipped with a series of grooves, within which the triangular-section ribs of the service belt, commonly called a Poly-V belt, fit. The pulley is installed directly on one end of the crankshaft and, for this reason, is generally located in the lower part of the engine compartment.
The primary function of the crankshaft pulley is to transfer mechanical energy, via a belt, from the crankshaft to critical auxiliary components, such as the alternator and air conditioning compressor. With the spread of electric power steering, belt-driven hydraulic power steering pumps have become less and less common. A similar evolution has affected the water pump, which is now commonly driven by the timing belt rather than the auxiliary belt. In the past, the crankshaft pulley was a simple wheel made of cast metal or sheet metal. However, increasing engine power and the growing need to reduce vibration—in order to improve ride comfort and increase the life of the belt and related components—have led to the development of more complex design solutions. There are also crankshaft pulleys designed to drive two flexible belts , thanks to the presence of two dedicated seats , which can also have different diameters. In spare parts catalogs, the crankshaft pulley is often also referred to as “ damper ” or “ damper ”.
The Original Birth range of engine pulleys, consisting of over 150 active codes, is designed and manufactured to meet the needs of modern petrol and diesel engines, ensuring high standards of quality and reliability.
Our products:
• Effective vibration damping
• High mechanical and thermal resistance
• Consistent performance over time
• Reinforced packaging, designed for greater safety and product protection
• Complete supply of bolts, where applicable
• Development according to OE specifications, with the use of selected materials and production processes
strictly controlled.
Attention:
During engine operation, torsional vibrations
can cause:
• abnormal noise
• premature wear of the service belt
• damage to the alternator, compressor and other auxiliary components
A worn or damaged damper pulley can seriously compromise the overall reliability of the engine, with the risk of causing significant damage to connected components.
Replacing the damper to avoid more serious damage, when:
• there are excessive vibrations
• there is a belt misalignment
• there is a reduction in the life of the connected components
Original Birth offers a complete and reliable range of components for major vehicle systems, designed to meet the needs of the aftermarket. The offering includes:
• Components for the cooling system
• Steering and suspension components
• Engine, suspension and gearbox supports and plugs
• Cu e for half shaft and steering box
• Wheel hubs
• Pedals
• EGR valves
• …and many other articles dedicated to the automotive aftermarket
