GD&T Symbols

Card Set Information

Author:
joshuacassel
ID:
191531
Filename:
GD&T Symbols
Updated:
2013-01-06 16:09:49
Tags:
GD Symbols
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Description:
GD&T Symbols with definitions
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  1. Straightness

    Symbol: ?
    Type of Tolerance: _____
    Definition: _____
    • Symbol:
    • T.o.T.: Form
    • Definition: Straightness is a condition in which the elements of a surface or its axis are in a straight line.
  2. Flatness

    Symbol: ?
    Type of Tolerance: _____
    Definition: _____
    • Symbol:
    • T.o.T.: Form
    • Definition: Flatness is a condition in which all elements are in one plane.
  3. Circularity

    Symbol: ?
    Type of Tolerance: _____
    Definition: _____
    • Symbol:
    • T.o.T.: Form
    • Definition: Circularity refers to a condition of a circular line or the surface of a circular feature where all points on the line or on the circumference of a plane cross section of the feature are the same distance from a common axis or center point.
  4. Cylindricity

    Symbol: ?
    Type of Tolerance: _____
    Definition: _____
    • Symbol:
    • T.o.T.: Form
    • Definition: Cylindricity is a condition of a surface in which all points of the surface are the same distance from a common axis
  5. Profile of a Line

    Symbol: ?
    Type of Tolerance: _____
    Definition: _____
    • Symbol:
    • T.o.T.: Profile
    • Definition: A Profile of a Line tolerance may be directed to a line of any length or shape.
  6. Profile of a Surface

    Symbol: ?
    Type of Tolerance: _____
    Definition: _____
    • Symbol:
    • T.o.T.: Profile
    • Definition: Profile of a Surface indicates a tolerance zone having the same form as the basic surface, with a uniform width equal to the specified tolerance within which the entire surface must lie.
  7. Perpendicularity

    Symbol: ?
    Type of Tolerance: _____
    Definition: _____
    • Symbol:
    • T.o.T.: Orientation
    • Definition: Perpendicularity is the condition of a surface at 90° to a datum plane or axis.
  8. Angularity

    Symbol: ?
    Type of Tolerance: _____
    Definition: _____
    • Symbol:
    • T.o.T.: Orientation
    • Definition: Angularity is a condition of a surface or axis at a specified angle (other than 0° or 90°) for a datum.
  9. Parallelism

    Symbol: ?
    Type of Tolerance: _____
    Definition: _____
    • Symbol:
    • T.o.T.: Orientation
    • Definition: Parallelism is the condition of a surface equidistance at all points from a datum plane.
  10. Symmetry

    Symbol: ?
    Type of Tolerance: _____
    Definition: _____
    • Symbol:
    • T.o.T.: Location
    • Definition: ?
  11. Position

    Symbol: ?
    Type of Tolerance: _____
    Definition: _____
    • Symbol:
    • T.o.T.: Location
    • Definition: Position defines a zone within which the center, axis, or center plane of a feature or size is promitted to very from the true position.
  12. Concentricity

    Symbol: ?
    Type of Tolerance: _____
    Definition: _____
    • Symbol:
    • T.o.T.: Location
    • Definition: ?
  13. Circular Runout

    Symbol: ?
    Type of Tolerance: _____
    Definition: _____
    • Symbol:
    • Type of Tolerance: Runout
    • Definition: Circular Runout provides control of circular elements of a surface. The tolerance is applied independently at any cross section as the part is rotated 360°.
  14. Total Runout

    Symbol: ?
    Type of Tolerance: _____
    Definition: _____
    • Symbol:
    • T.o.T.: Runout
    • Definition: Total Runout concerns the runout of a complete surface, not merely the runout of each circular element.

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