Pdf Extra Quality - Din 7161

The shaft is always larger than the hole. The parts must be forced together using a press or thermal expansion/contraction, creating a rigid, permanent bond (e.g., H7/p6 ).

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Your preferred (e.g., basic hole or basic shaft ) The shaft is always larger than the hole

Understanding DIN 7161: The Foundation of ISO Hole Deviations This link or copies made by others cannot be deleted

is an older German industrial standard that specifies ISO deviations for holes with nominal sizes ranging from 1 mm to 500 mm . It was officially superseded by DIN ISO 286-2 in November 1990.

In the world of mechanical engineering and manufacturing, the "devil" is often found in the tolerances. For engineers, quality control managers, and CNC machinists, understanding the difference between a part that fits and a part that fails comes down to a single standard. That standard is .