Novel rubber belt stageless speed variator

The utility model relates to a stepless speed changer, particularly a novel rubber belt stepless speed changer which comprises an input belt wheel and an output belt wheel. The utility model is characterized in that a bearing seat is arranged between the input belt wheel and the output belt wheel. The bearing seat is provided with a set of coaxial separated belt wheels by a rotary axle. The input belt wheel and the output belt wheel are respectively connected with the separated belt wheels by rubber belts. The bearing seat of the separated belt wheels is provided with a toothed rack which is provided with an adjusting displacement device. The utility model overcomes the problems of loud noise and unstable operation of the existing product. The utility model has the advantages of simple structure, low cost, stable transmission, low running noise and light self weight. The utility model can be used as the stepless speed changer of various devices requiring speed adjustment.