This standard is included in DIN Handbook 1, 1 E, and 106. This Standard contains the general definitions and symbols for gears, gear pairs and gear trains as well as the definitions of their parameters. The content of this Standard has been brought into line with the recommendation ISO/R 1122:1969 issued by the International Organization for Standardization (ISO); for this purpose the Swiss Standard VSM 15 522:1974 has also been used as a source, so that extensive agreement with international standardization has been achieved. The quantities contained in ISO/R 1122:1969 have been supplemented in this Standard by further terms and parameters which have appeared important in connection with gear tooth geometry. The symbols used agree with DIN 3999. Specific terms relating to particular gear tooth systems are dealt with in separate Standards.

ISO 1122-1:1998 - Identical