Comparison of advantages and disadvantages of imported industrial belts：

  (1)Self protection against overload due to slipping;

  (2)The structure is relatively simple，Low design accuracy requirements，It can also meet the requirements of many toy movements。

  Advantages of Belt Drive：

  (1)The distance of transferable motion is relatively long;

  (2)Stable operation、Low noise;

  Disadvantages of Belt Drive：

  (1)Large size，Many toy products do not have enough space to use;

  (2)The efficiency of transmission deceleration is relatively low，The theoretical deceleration is the ratio of the radius of the large wheel to the radius of the small wheel, which is the deceleration ratio;

  (3)The lifespan of the belt is not long，This will result in a shorter product lifespan(However, the lifespan of toys is not required to be very long either);

  (4)Inaccurate transmission(Belt slipping)。

  belt：Used in toys *PlethorabeltThe cross-section is circular and square strips，The material is generally rubber。beltUsually injection molding，For some small toy factories，They won't do it themselvesbelt(Rubber band)，Purchasing is actually relatively cheap，Usually, a rubber ring costs only a few cents，And opening an additional set of molds costs tens of thousands of yuan。

  beltroundThe material is generally copperroundAndPOMPlastic wheel。Generally small driving wheel(Directly hit on the motor shaftbeltround)Able to use metal copper wheels，And the big wheel will use plasticPOMround。From the perspective of mechanical principles，beltanswerAndbeltroundFriction on the side of the groove，actually is *Effective，On toysbeltroundIt's also designed like this，But sometimes the actual situation is simply tobeltPressure onroundupper。

  beltroundRequire independent space in the teeth。becausebeltIt's made of rubber，andbeltroundMost of them use plasticPOMround，But for other transmission structures such as：toothround、Motors, etc，The noise is high due to errors in actual operation，Will use noise reductiontoothroundoil，suchoilWill cause rubberbeltAndbeltroundSlipping，andAnd it will be absorbed by rubberandreducebeltService life of，So when designing teethtoothHouranswerTake the entirebeltandbeltroundPlaced in a separate space，To preventoilSplash tobeltupper。