Synchronous belt which is industrial belt initially entered China in the 60’s, and at that time it is mainly applied in advanced equipment imported from abroad, also is restricted in manufacturing industry era background at that time.Since then, there has been a demand for synchronous belt replacement, so domestic enterprises began to try to manufacture synchronous belts in the middle of the 1960s.At that time, At that time, the products were mainly imitated from abroad, and the output could only be produced in small batches.However, since the 1980s, a few domestic manufacturers have begun to introduce some advanced production and testing equipment from abroad to try to produce trimmed V-belts and polyurethane timing belts, and the sales are very good.With the rapid development of synchronous belt production, it is urgent to standardize the synchronous belt and pulley.
In the mid-1970s, the Shanghai Institute of Mechanical Engineering independently developed a series of standards for the modular system of trapezoidal tooth synchronous belts. The national standard formulated on the basis of the ISO synchronous belt drive standard was approved in 1984, published in 1989, and implemented in 1990.Then from this time, the industrial belt products such as polyurethane synchronous belt and rubber synchronous belt have been standardized production. These two industrial belts have practically contributed to the rapid development of the industrial manufacturing industry in China.
