Baaz Pulley Bawana, Delhi

The overrunning alternator pulley consists of a pulley, an overrunning clutch unit with a double bearing support, a drawn inner ring and outer ring and two sealing rings. For protection against heavy water impacts and other dirt contamination, a cover snap is fitted on the front side. Advantages of an overrunning alternator pulley Damping of belt vibrations Reduced load on the belt drive Reduced tensioner movement Increased belt life Improved noise behaviour of the belt drive Increased alternator speed in the idling speed range Reduced belt slip and noise on the alternator drive wheel during gear changes Increased fuel economy Starting / Crank Pulley The crank pulley is the main pulley on the end of the crank (duh) that drives the accessories -- alternator, water pump, and air conditioning compressor. An "underdrive" crank pulley is a pulley with a smaller diameter. The result is that it drives the accessories more slowly, and with greater mechanical leverage. It's like pedaling a bicycle up a hill with the smallest sprocket engaged on the crank. The goal of the underdrive pulley is to reduce drag from the accessories on the motor. Of course, if the accessories are turning more slowly, they will also be that much less effective, but life is all about compromises.