Synchronous belt wheel is always used with synchronous belt, and synchronous belt, need enough for everyone to make sure you choose products, especially in the aspect of size right enough, can normally begin to use. This requires everybody, at the time of purchasing the product, it is important to ensure that is your choice of size suitable products. First of all, everyone at the time of purchase of synchronous belt wheel, need through the understanding of the actual application requirements, clearly know you need to use the size of many aspects, such as the diameter of the pulley. Then through to understanding of different specifications of the pulley, know the product in all aspects of each model size. Second, everyone in their own need to use the size of the synchronous belt wheel, and the different models of belt wheel after these conditions have a clear understanding of what size, you need according to these information, to select the corresponding models, in terms of width and length of each size is appropriate oneself the application of the pulley. When you need to use the synchronous belt wheel, all need to like the above, to make sure you buy is in size is very appropriate oneself all aspects of application of pulley, can the normal use of pulleys, and showing a good application effect.