GD&T
Engineering
GD&T (Geometric Dimensioning and Tolerancing)
Geometric Dimensioning and Tolerancing
Symbolic language defining permissible geometric variation and functional relationships of product features.
Examples
- 01GD&T on the housing drawing defines the position of the bearing bores relative to the mounting face, not just their size.
- 02Before release, the drawing's GD&T is reviewed with the supplier and the quality lab to make sure it can be measured.
- 03Unclear GD&T leads to arguments about good and bad parts, so open questions are resolved before the next project gate.