Rubber synchronous belt core is usually one of the synchronous belt, due to the activities of the product is belong to the low speed high torque transmission, is to have wonderful high elasticity, wear resistance of polyurethane body, wonderful high seepage force and the bending resistance, thus guaranteeing no signs of wear and tear during the course of transmission, is also to cover the synchronous belt core. In a belt running from 2 to 3 years later, when the conductor to faint life, belt failure belongs to the normal environment. After the course with constant operation, belt failure due to conductor to faint life, and it belongs to the aspirations of belt failure mode. Is at sixes and sevens 45 degree Angle of serrated fracture belt, this is the model of the belt core reach of normal life. Starting device and inspect the belt performance, observe whether there is a very vibration, if there is a very fine listen to noise. Zui good was lost, a raid of bearing and motor status: if you think that is too hot to the touch, is probably the belt is too tight, or bearing are, according to the error or lubrication banning it.