Dimensioning/tolerancing question 1

[VolEngineer]

I am trying to interpret a drawing done in French. My question is regarding the following:

= 70 =​

<------------------------------>​

I've never seen a dimension presented like this and could use some help. What do the equals signs signify?

This type of dimension is given both between screw hole centers, and also from edge to edge of the part.
General tolerances Js13.

Thanks in advance!

 

[KENAT]

forum1103 may be better place

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What is Engineering anyway: faq1088-1484​

 

[KENAT]

Oh meant to say it might be meant to imply symmetry but I'm not sure.

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(probably not aimed specifically at you)
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[desertfox]

Hi

The equal signs mean equally spaced about some feature or centerline

 

[robyengIT]

In Italy we used this system to say : same size on left and on right

 

[VolEngineer]

Thank you for the help guys!

 

[KENAT]

? how is symmetry not the same thing as equally spaced about some feature? Oh well.

Posting guidelines faq731-376

http://eng-tips.com/market.cfm?

(probably not aimed specifically at you)
What is Engineering anyway: faq1088-1484​

 

[VolEngineer]

All of the suggestions make sense in the context of my drawing. Thanks again!

 

[Tmoose]

Does the drawing reference any ISO or ANSI GDT standard down in the title block?