1, high transmission accuracy. As mentioned earlier, the belt drive cannot guarantee the accurate transmission ratio, and the chain drive can not achieve a constant instantaneous transmission ratio, but the transmission ratio of the involute gear commonly used in modern times is theoretically accurate and constant. This is not only a key requirement for precision machinery and instruments, but also an important condition for reducing dynamic load and achieving smooth transmission under high speed and heavy load. 2, wide range of application. The power range of gear transmission is extremely wide, and belt transmission and chain transmission are difficult to compare.PRODUCT INTRODUCTION The Top and bottom are encased by the wrapper ,Both sides are rubber v belt of tooth shape groove is designed for the bottom to improve the flexural property PRODUCT FEATURES Large intensity ,High Fiexibility ,Good Durability Special bottom rubber used ,small elongation and long service life Excellent heat -resistance ,Oil -propt and wearing resistance High transmission efficiency suitable for band pulley with minor diameter a safe performance can be guaranteed even during high -speed operation