Synchronous belt is a ring-shaped belt made of steel wire rope or fiberglass as a strong layer, covered with polyurethane or chloroprene rubber. The inner circumference of the belt is made into a toothed shape, which meshes with the toothed belt wheel.

When driving with synchronous belt, the transmission ratio is accurate, the force on the shaft is small, the structure is compact, oil resistant, abrasion resistant, and anti-aging performance is good. Generally, the operating temperature is -20 ℃ -80 ℃, v<50m/s, P<300kw, and i<10. For transmission requiring synchronization, it can also be used for low-speed transmission.

Synchronous belt drive is composed of a circular belt with equidistant teeth on the inner surface and corresponding matching wheels. It combines the advantages of belt drive, chain drive, and gear drive. When rotating, power is transmitted by meshing the teeth with the grooves of the wheel. Synchronous belt transmission has accurate transmission ratio, no slip, can achieve a constant speed ratio, smooth transmission, can absorb vibration, low noise, and a large transmission ratio range, generally up to 1:10. Allowing a linear speed of up to 50M/S and transmitting power from a few watts to a hundred kilowatts. High transmission efficiency, generally up to 98%, compact structure, suitable for multi axis transmission, no lubrication, no pollution, so it can work normally in places where pollution is not allowed and the working environment is relatively harsh. Synchronous belts are widely used in various types of mechanical transmissions in industries such as textiles, machine tools, tobacco, communication cables, light industry, chemical industry, metallurgy, instrumentation, food, mining, petroleum, and automobiles.