As the main part of belt drive, the transmission belt has also changed from the original vulnerable parts to the functional parts, and its varieties and specifications have developed to the diversity, from the traditional ordinary cloth hexagonal belts and ordinary flat belt to develop the narrow hexagonal belts, wide hexagonal belts, combined hexagonal belts, cut edge hexagonal belts, multi-wedge belt, synchronous belt and so on.

　　Belt drive is one of the important forms of mechanical drive, with the continuous improvement of industrial technology level and the requirements of mechanical equipment precision, lightweight, functional and personalized, its application range is more and more wide, more and more transmission forms.

　　These belts have been widely used in automobile, machinery, textile, home appliances, light industry, agricultural machinery and other fields, and are playing an increasingly important role in the national economy and People's Daily life.

　　Raw Edge Cogged hexagonal beltss

　　With the continuous improvement of the variety and performance standard of the belt, the main representative of the belt in China is the production line hexagonal belts, the cutting edge hexagonal belts, the synchronous belt and the multi-wedge belt.

　　In recent years, triangular belts, multi-wedge belt and synchronous belt are the fast developing belt varieties.

　　At present, the cut edge triangular belts can be divided into two kinds: ordinary cut edge triangular belts and toothed cut edge triangular belts.However, due to its high bending stress, it is generally suitable for low rotational speed and large bending radius.

　　The triangular belts has low bending stress, fast heat dissipation, and can be used in high speed and small bending radius, such as Auto triangular belts.

　　The triangular belts has good dynamic flexibility, fast heat dissipation, long service life and high transmission efficiency, which can meet the requirements of transmission power.Early root cracking can be avoided in use.It can be used in high speed and small bending radius.