To use synchronous belt transmission is very broad category of mechanical transmission, and gear drive, it has the characteristics of can have buffer, absorbing vibration, low noise, but in the use process wants its use fixed number of year, use and maintenance must be accurate. In this article, the author introduces a few kinds to users often encounter the damage of the synchronous belt forms: 1, the tension is not enough: if the tension is not enough, so the friction will be enough, namely the skid happens, then let wear increase of synchronous belt, transmit other lost the ability to load, transmission instability to take losing efficacy. 2, tension is too big: synchronous belt on the tension is too large, deformation is serious, the lifespan of the synchronous belt to reduce. 3, synchronous take leave stuff: if there synchronization with grease and other dirt, because dirt contains the chemical material, it can enter the synchronous belt, the destruction of its material structure. 4, synchronous belt wheel not is: if the synchronous belt wheel is not appear to align the cause of synchronous belt skid, distortion and internal fever and wear, so must be for synchronous belt wheel. 5, the length of the synchronous belt is not equal: if a row is not equal to the length of the belt, each the size of the synchronous belt on the tension will be different, some can produce skid or tension is too big, make a wear to synchronous belt. Therefore, must choose when using the same type of synchronous belt. 6. If, synchronous belt long time operation, we need to make it open, otherwise it will reduce the lifespan of the synchronous belt, synchronous belt deformation occurred. 7. And if a synchronous belt to prevent too long, it will appear to rubber aging and reduce life. 8, if the dust, acid gas field environment operation or other gases of Shanghai synchronous belt, it will also make a shortened lifespan of the synchronous belt. 9, vibration amplitude is too large, if due to the rapid twitch of the machine vibration and the synchronous belt, this will let the synchronous belt is basked in by severe situation, so as to reduce the use fixed number of year. 10. And start the overload: synchronous belt to the conditions of the overload, will produce too much tension, led to the synchronous belt damaged due to sliding. 11, synchronous pulley groove worn: synchronous belt wheel used for too long, groove edge wear and tear, Angle is not correct, synchronous belt will touch the bottom of the trough, to drive the machine, and have to increase the tension, the triangle have been broken. Above is the author introduced the relevant categories to users often can encounter the damage form of synchronous belt.