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information.
Rules & Concepts

metric/inch
conversion
See page
112 for
Conversion of Metric to Inch - Standard Units of Measure
The Ultimate
GD&T Pocket

Datums
Guide
2nd Edition

Form
Orientation

A Companion to the
Location

ASME Y14.5-2009
Dimensioning & Tolerancing
Standard
Runout

Alex Krulikowski
Profile
 TOPICAL INDEX
Pages with application examples shown in italics Fixed and floating fastener formulas ................................. 84-85
Flatness ............................................................... 6, 9, 14, 53-54
Actual local size .........................................................9, 103 Free state ............................................................................... 15
Actual mating envelope ............................12, 44, 103, 105 Gears and splines................................................................... 19
All around ......................................................15, 91, 95, 98 General notes ......................................................................... 18
All over.......................................................................15, 91 ISO / ASME comparison ................................................107, 113
Angularity................................................................... 62-64 Independency principle................................................. 9, 10, 36
Axonometric views (detailing) ................................. 116-117 Irregular feature of size........................................ 12-13, 74, 105
Basic dimension ....................................................6, 28, 46 LMB ............................................................. 30, 42, 44, 105-106
Bonus tolerance.. 20, 60-61, 66, 68-69, 72-74, 77, 82-83, 103 LMC ..........................9, 10, 20, 30, 44, 69, 82-83, 103, 105-106
Circular runout .....................................................14, 32, 89 MMB ... 12-13, 19, 29, 35-38, 40-42, 44, 70-71, 74, 77, 105-106
Circularity...................................................................14, 57 MMC ......................... 8-13, 17-20, 29, 35-37, 41, 44, 60-61, 66,
Complex feature ......................................................97, 103 68-69, 70-74, 77-79, 82-83, 103, 105-106
Composite position tolerance .................................... 78-79 Multiple single-segment position ............................................ 80
Composite profile tolerance ....................................... 98-99 Orthographic projection methods ...................................113-115
Concentricity ..........................................................5, 14, 87 Parallelism ............................................................. 14, 16, 65-66
Continuous feature ..........................................................16 Pattern ...........................................................15, 19, 41, 45, 119
Conversion tables ................................................... 110-112 Perpendicularity ........................................... 6, 14, 12, 42, 59-61
Customized datum reference frame ............................2, 47 Position (tolerance)..................... 6, 14, 11, 17-19, 31, 35, 67-81
Cylindricity .................................................................14, 58 Profile and position combined ....................................... 100-101
Datum ......2, 13, 21-25, 27-38, 40-44, 46-52, 72, 103, 104 Profile of a line ................................................................ 14, 102
Datum axis.................................................................32, 38 Profile of a surface............................................ 12, 14-15, 94-99
Datum center plane ........................................................24 Profile tolerance zone ........................................................ 91-92
Datum feature .......... 21-27, 29-38, 40-48, 50-52, 103, 105 Projected tolerance zone ................................................... 84-86
Datum feature shift / displacement ..... 35-38, 44-45, 74, 77 Radius and controlled radius ................................................. 4-5
Datum feature simulator . 21-22, 25, 29-48, 50-52, 103, 105 Rectangular coordinate dimensioning ...................................... 6
Datum feature symbol ...............................6, 27, 21, 24, 48 Regular feature of size .......................... 6, 8-11, 13, 17, 28, 106
Datum reference frame............................23, 27, 28, 41, 47 RFS .................................................................. 10, 67, 105, 106
Datum reference frame symbol ................................... 2, 47 RMB................................................. 10, 29, 31-34, 43, 105, 106
Datum referencing .. 6, 11-13, 15-16, 18-19, 31-32, 27, 29-31 Rule #1 .............................................................. 8-9, 29, 30, 106
Datum related dimensions ...............................................28 Rule #2 ........................................................................... 10, 106
Datum system..................................................................21 Screw threads......................................................................... 18
Datum target symbols.................................. 22, 48-52, 103 Simultaneous requirement...................................................... 19
Datum terminology ..........................................................22 Single limit dimensions ............................................................. 7
Datum translation modifier.........................................13, 46 Statistical tolerancing symbol ................................................... 5
Degrees of freedom .................... 22-23, 25-26, 47, 22, 103 Straightness................................................. 9, 14, 36, 42, 55-56
Derived median line .........................................................14 Surface texture .............................................................. 118-120
Dimension origin ..............................................................17 Symmetry ................................................................... 14, 77, 88
Envelope principle – see Rule #1 .......................... 8, 9, 106 Total runout ....................................................................... 14, 90
Feature ....................................... 5, 11, 8-14, 16-25, 27-38, Tolerance / tolerance zone ..........5, 8-10, 13-15, 18-20, 29, 32,
40-48, 50-52, 103-106, 113 36, 42, 44, 46-47, 92-93, 103, 105-106
Feature axis .....................................................................14 Unequally distributed tolerance zone ............................... 92, 95
Feature control frame ........ 6, 11-13, 16-20, 21, 27, 29-38, Zero tolerance at MMC / LMC ........................................... 82-83
40, 42, 46, 47, 103
Feature of size ...8-11, 16, 24, 33, 35-37, 42, 103, 105, 106