Positional Tolerance Machinery's Handbook, 31st Edition
634
4x M6x1-6H
Ø 0.25
14 A B C
A
This on the drawing
Ø 0.25 positional True position
Axis of threaded hole
Tolerance zone axis
14 minimum Projected tolerance
zone height
Means this
True position axis
Axis of threaded hole
Fig. 13. Projected Tolerance Zone Application
This on the drawing
Means this
0.1
A
T
0.1 Tolerance zone
Controlled surface
Tangent plane generated by high points
A
Fig. 14. Tangent Plane Modifier The above examples are just a few of the numerous concepts and related symbols cov ered by ASME Y14.5-2018. Refer to the standard for a complete discussion with further examples of the application of geometric dimensioning and tolerancing principles.
Copyright 2020, Industrial Press, Inc.
ebooks.industrialpress.com
Made with FlippingBook - Share PDF online