The minimum service factor of the belt drive is 1.3. Greater service factors are available upon request.按标准的皮带传动比最小为1.3设计，要求更高的传动比是可以的。
The minimum service factor of the belt drive is 1.3. Greater service factors are available.按标准的皮带传动比最小为1.3设计，要求更高的传动比是可以的。