This standard specifies the terms and definitions, overall dimensions, basic requirements, technical requirements, test methods, inspection rules and markings, packaging, transportation and storage, and quality commitments of the automotive AT transmission planetary gear assembly. This standard applies to the planetary gear assembly (hereinafter referred to as the "assembly") for AT transmissions in automobiles with less than 7 seats.
T/ZZB 1394-2019 history
2019T/ZZB 1394-2019 Planetary gear assembly of automobile AT gearbox