Reading tolerances DIN 16901

  • Thread starter patehi
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Hi all,

i have stumbled across a drawing which referenced DIN 16901 for its tolerance. I have a table of DIN 16091 which i dont understand.

For the first half of the tables, the tolerances are + and -, which i understand. The second half (tolerances on dimensions with Deviations entered against the dimensions) are without +/- symbols. Can i assume that the tolerances are always + ?

DIN16091_tolerance.jpg


Thanks guys for your help!
 

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  • #2
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It looks like the second set of numbers are just twice the top set for the given row/col

so if the cell says +-0.20 then the corresponding cell says 0.40
 
  • #3
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it Looks like it as well, but what are "tolerances on dimensions with deviations entered against the dimensions"?
I am inspecting a sampe, and have a drawing and the dimensions are with no tolerances. The only indication is in the remark section, "tolerances are according to DIN 16901".
 

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