This standard specifies the terms, definitions and symbols of synchronous belt transmission, which is suitable for mechanical transmission with precise positioning and synchronization requirements.
GB/T 6931.3-1986 history
2020GB/T 6931.3-2020 Belt drives—Vocabulary—Part 3:Synchronous belt drives
2008GB/T 6931.3-2008 Belt drives vocabulaty.Part 3:Synchronous belt drives vocabulary