DIN 3963:1953DIN 3963-1:1974DIN 3963-2:1974DIN 3963-3:1974DIN 3963-4:1974DIN 3963-5:1974DIN 3963-6:1974DIN 3963-7:1974
DIN 3963:1978 history
2021DIN ISO 1328-2:2021 Cylindrical gears - ISO system of flank tolerance classification - Part 2: Definitions and allowable values of double flank radial composite deviations (ISO 1328-2:2020)
2018DIN ISO 1328-1:2018 Cylindrical gears - ISO system of flank tolerance classification - Part 1: Definitions and allowable values of deviations relevant to flanks of gear teeth (ISO 1328-1:2013)
1978DIN 3963:1978 Tolerances for Cylindrical Gear Teeth; Tolerances for Working Deviations