Tolerance zones

The width of the tolerance zone is in the direction of the leader line arrow joining the symbol frame to the toleranced feature unless the tolerance zone is preceded by the symbol 0. An example is given in Fig. 20.15a.

If two tolerances are given, then they are considered to be perpendicular to each other, unless otherwise stated. Figure 20.15b shows an example.

Figure 20.15c gives an example where a single tolerance zone is applied to several separate features. In the tolerance frame the symbol 'CZ' is added. CZ is

(a)

//

0,1

A

B

//

0,2

A

the standard abbreviation for 'Common Zone'.

Figure 20.15d gives an example where individual tolerance zones of the same valve are applied to several separate features.

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  • BRADLEY
    What are toerance zones?
    1 year ago

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