There are many kinds of mechanical equipment, are used to all kinds of mechanical equipment in many industry, and a lot of equipment have drive mechanism, is the synchronous belt are used in the transmission, this shows the wide application of the transmission device (really, but why it used so widely? The advantages of this is because a combination of a variety of synchronous belt transmission, at the same time of can get very good transmission effect, and not too much noise when driving, driving range at the same time also more widely. Specific with respect to its transmission performance, allowing the linear velocity can reach 50 m/S, the transfer from a few watts to hundred kilowatts. Transmission efficiency is very high, can reach 98%, the transmission structure is very compact, suitable for multiple spindle drive, do not need to take up a lot of space in the equipment, not because of the application of this device has greatly increased the equipment structure of the volume and weight. Also adopt synchronous belt transmission, does not require lubrication, also won't cause the pollution problem, so that it can meet the demand of pollution is not permitted in the transmission, but also can work normally in a work environment is relatively poor area. Because of the synchronous belt can be obtained very good transmission effect in use when the summary, has very good performance in function, and can achieve many other transmission state cannot achieve the application level, so its will only be used so widely.