Download - GEOMETRICAL TOLERANCE DEFINITIONS - … tolerances Directional tolerances Flatness ... Location tolerances common datum straight line A-B. Runout tolerances Symmetry of a midplane

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Page 1: GEOMETRICAL TOLERANCE DEFINITIONS - … tolerances Directional tolerances Flatness ... Location tolerances common datum straight line A-B. Runout tolerances Symmetry of a midplane

Ø tØ 0,08

Ø t

Ø 0,08

0,08

tt0,08

0,1t 0,1

t

0,1t

0,1

t

0,04Ø

t

0,02

Ø t

0,04t

0,02

t

Ø 0,01 A

A

Ø t

Ø 0,01 A B

60°

AB

60°

Ø t

20

20

Ø 0,08 t

20 20

B

A

C

68

100

Ø 0,08 A B C

Ø t

Ø 0,01

D

D

t

Ø 0,03 A

A

Ø t

Ø

Ø 0,08

t

A

ØØ

BA

Ø 0,08 A – B

Ø

Ø t

At/2

t/2

Ø 0,08Ø 0,08 AA

t

Ø

Ø

0,1

t

A

A B

0,1 A – B t

Ø

0,1

A

t

0,1 D

D t

t

Ø

0,1

BA

0,1 A – B

t

D

0,1 D t

Ø 0,03 A

A

a

b α

Ø t

Ø 0,01 A

A

E

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Straightness

Symbol and tolerance properties

Tolerance zone Explanation

The extracted (actual) axis of the cylinder to which the tolerance applies shall be contained within a cylindrical tolerance zone of diameter 0.08.

Drawing entry

Drawing entry and explanation

Form

tole

ranc

esD

irec

tiona

l to

lera

nces

Flatness

Roundness

Cylindricity

Profile of a line

Profile of a surface

Parallelism of a line (axis) to a reference line

Parallelism tolerance of a surface related to a datum surface

Perpendicularity of a line (axis) to a surface

Angularity of a line (axis) to a reference

surface

Position of a line

Concentricity of an axis

The extracted (actual) surface shall be contained between two parallel planes 0.08 apart.

The extracted (actual) circumferential line, in any cross-section of the conical surface, shall be contained between two co-planar concentric circles with a difference in radii of 0.1.

The extracted (actual) cylindrical surface shall be contained between two coaxial cylinders with a difference in radii of 0.1.

In each section, parallel to the plane of projection in which the indication is shown, the extracted (actual) profile line shall be contained between two equidistant lines enveloping circles of diameter 0.04, the centres of which are situated on a line having the theoretically exact geometrical form.

The extracted (actual) surface shall be contained between two equidistant surfaces enveloping spheres of diameter 0.02, the centres of which are situated on a surface having the theoretically exact geometrical form.

The extracted (actual) median line shall be within a cylindrical zone of diameter 0.03 parallel to the datum axis A.

The extracted (actual) surface shall be contained between two parallel planes 0.01 apart which are parallel to datum plane D.

The extracted (actual) axis of the cylinder shall be contained between two parallel planes 0.1 apart that are perpendicular to datum plane A.

The extracted (actual) median line shall be within a cylindrical tolerance zone of diameter 0.1 that is parallel to datum plane B and inclined at a theoretically exact angle of 60° to datum plane A.

The extracted (actual) median line shall be within a cylindrical tolerance zone of diameter 0.08, the axis of which coincides with the theoretically exact position of the considered hole, with respect to datum planes C, A and B.

The extracted (actual) median line of the toleranced cylinder shall be within a cylindrical zone of diameter 0.08 the axis of which is the common datum straight line A-B.

Loca

tion

tole

ranc

esRu

nout

tole

ranc

es

Symmetry of a midplane

Radial runout

Axial runout

Total runout

Total runout Surfaces at right angles

The extracted (actual) median surface shall be contained between two parallel planes 0.08 apart which are symmetrical to the datum median plane A.

The extracted (actual) line in any cross-section plane perpendicular to common datum straight line A-B shall be contained between two coplanar concentric circles with a difference in radii of 0.1.

The extracted (actual) line, in any cylindrical section, the axis of which coincides with datum axis D, shall be contained between two circles 0.1 apart.

The extracted (actual) surface shall be contained between two coaxial cylinders with a difference in radii of 0.1 and the axes coincident with the common datum straight line A-B.

The extracted (actual) surface shall be contained between two parallel planes 0.1 apart which are perpendicular to datum axis D.

Dimensions in mm

Extr

act f

rom

DIN

ISO

110

1

Sphere

GEOMETRICAL TOLERANCE DEFINITIONS