【Daily Question No. 105】December 13, 2018
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【Daily Question No. 105】December 13, 2018: Briefly explain the meaning of Φ40H7. The basic dimension is a hole with Φ40 diameter ； H7 is the tolerance zone code, H is the basic deviation code, and 7 is the tolerance grade.
Hole with a diameter of 40 mm, tolerance class 7, base hole system
Hole with a diameter of 40 mm, tolerance grade 7
Hole with a diameter of 40 mm, tolerance grade 7
Bore diameter 40mm, base hole system, grade 7 precision
φ40H7 means the diameter of the hole is 40, with the tolerance code being H7； Hole system
It indicates a hole with a diameter of 40, and the tolerance for the hole is H7.
The nominal diameter is 40 MM. The tolerance is H7/f6, which belongs to the hole-based fit system
The basic dimension is a hole with Φ40 diameter； H7 is the tolerance zone code, H is the basic deviation code, and 7 is the tolerance grade.
Hole with a diameter of 40 mm, base hole system, tolerance zone position H, tolerance zone width: grade 7 precision