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Alternator clutch pulley (OverRunning pulley - Free-wheel pulley)

The alternator clutch pulley is a component that is increasingly used in the latest diesel motorizations and in high performance petrol motorizations. The alternator clutch pulley is the ideal solution to the evolution of last generation engines and to the increasing electric performance of alt's. It compensates for major inertias and offers several advantages to thesystem, among which:

1. Reduction of vibrations on the belts
2. Reduction of tension variations
3. Increase of the system life
4. Reduction of the system noise  

Proper preventive maintenance allows constant driving comfort for the whole vehicle life, avoiding risks of failure of the auxiliary unit control. It is therefore important to check the proper operation of this component when maintaining the auxiliary unit control. Autopulley offers an extensive range of alternator clutch pulleys as well as the tools required for their replacement.

Demand for the pulley unit with one-way clutch has expanded immensely all over Europe and on Global basis, as well.

Some useful background informations :
1. Direct-injection engine and diesel engine designs are progressing for the purpose of curtailing global warming and reducing CO2 emissions.
2. Engine RPM during idling is reduced. Furthermore, cases of the engine being completely stopped are on the increase.

Under current market trends, speed fluctuations and vibrations of accessories are growing. Therefore, development of a highly efficient clutch pulley which does not affect engine accessory too much is strongly desired.

Lately, Autopulley has succeeded in development of the structure of a pulley unit with a one-way clutch that has excellent durability and strong own design (8 rolls inside, instead of 6).

AUTOPULLEY Group Team