Synchronous belt wheel to reduce vibration, low noise operation, suitable for use in the car, also used in chemical fiber, textile machinery, tobacco machinery, paper making, printing machinery, chemical industry, light industry, food, food, machinery, mining, metallurgy, iron and steel, machinery, office equipment, medical equipment, communications equipment, and various fine, fine mi mi machine equipment, etc. The characteristics of the synchronous belt wheel: 1. Non-slip, transmission, right thing with a constant velocity ratio; 2. Drive safe, have buffer, vibration reduction ability, low noise; 3. High driving obedience and can reach 0. 98, significant energy saving result; 4. Convenient maintenance and nurse, do not need lubrication and maintenance capability is low; 5. Speed ratio range is big, usually up to 10, line rate can be up to 50 m/s, has great power on category, can reach several to several hundred thousand watts; 6. Can be used for long interval between the transmission, the central distance can reach more than 10 m. 7. No pollution, can be in admit of no pollution and normal things things is bad situation.