orientation tolerance gdt

7/27/2019 Orientation Tolerance Gdt

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Geometric Dimensioning and Tolerancing

Orientation Tolerance

8/18/2013 1Intellectual Design & Engineering

GD & T Orientation tolerance


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Perpendicularity

Surface (Feature Surface to Datum Surface)

The tolerance zone

in this example is

defined by twoparallel planes

oriented

perpendicular to the

datum reference

plane.


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4 Perpendicularity Surface Multiple datums


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Perpendicularity

Center plane

The tolerance zone in

this example is

defined by a cylinder

equal to the length of

the feature, oriented

perpendicular to the

datum reference plane.

(Feature Axis to Datum Surface)


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Perpendicularity at MMR Internal Feature Center Plane(Feature Axis to Datum Axis)

The tolerance zone in this example is

defined by two parallel planes oriented

perpendicular to the datum reference axis.


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Perpendicularity

External feature ofSize Axis


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Perpendicularity

Internal featureofsize axis


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Perpendicularity

Threaded Hole orInserts Projected Tolerance Zone


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Parallelism (Feature Surface to Datum Surface)

The tolerance

zone in this

example is

defined by two

parallel planes

oriented

parallel to the

datum

reference plane.


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Parallelism (Feature Axis to Datum Surfaces)

The tolerance

zone in this

example isdefined by a

cylinder equal to

the

length of the

feature, oriented

parallel

to the datum

reference planes.


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Parallelism (Feature Axis to Datum Surface)

The tolerance

zone in this

exampleis defined by

two parallel

planes

oriented

parallel to the

datum

reference

plane.


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Parallelism

(Feature Axis to Datum Axis)

The tolerance zone

in this example is

defined by a

cylinder equal to

the

length of thefeature, oriented

parallel to the

datum reference

axis.


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Parallelism Hole Relative to Plane


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Angularity Overview and Surface toSurface


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Angularity Surface to Surfacewith Location Control


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Angularity Hole to Planar Datum


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The tolerance zone in this example is defined by a cylinder equal to the length

of the feature, oriented at the specified angle to the datum reference axis.


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d l


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G i Di i i d T l i


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G i Di i i d T l i


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orientation tolerance gdt

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