Synchronous belt wheel is in use to see if there are good guarantee, it is natural to optimize the equipment operation and function, also have very good transmission effect. For many users, therefore, be sure to select the following pulley is very important, so we can better achieve application: like many other products, synchronous belt wheel when use also need very good quality, in order to function and achieve good performance, service life and easy to use. Therefore, it needs to be a very good quality pulley, have the basic ability of application implementation. Because synchronous belt wheel needs to be installed in the main equipment of a specific location, so its use effect needs related to the install state, and install state directly related to its structure size. Therefore, it is necessary to have a suitable size of pulley to complete the installation correctly, so it is possible to realize application. When using synchronous belt wheel, need to often contact oily substances, and it also requires constant friction. In this case, the application needs to have very high request for its performance, and need to be very good pulley to implement the application.