The generator belt idler pulley sells for 60--230 yuan, depending on what your model is, because the generator belt idler pulley sells for different models is not the same:
1, idler pulley refers to the gear in the middle of two transmission gears that do not contact each other to play a role in the transmission of the gears, at the same time with the two gears are meshed with the gears to change the direction of rotation of the driven The direction of rotation of the passive gear, so that it is the same as the active gear. Its role is only to change the steering and can not change the transmission ratio, called the idler;
2, the main role of the idler wheel to change the steering of the driven wheel, increase the transmission distance, adjust the pressure angle. The idler wheel is a transitional role of the wheel system parts, will not change the transmission relationship, in order to make the wheel system force more reasonable or to meet the whole transmission system arrangement;
3, its role is only to change the steering, and can not change the transmission ratio, through the idler wheel can extend the wheelbase, how many of its teeth on the transmission ratio of the value of the size of the impact, but on the end of the wheel steering will have an impact. It is the wheel that does not do work, there is a certain role of energy storage, which helps to stabilize the system.